Easily raise or lower your boat trailer's bunk board with this slotted, zinc-plated swivelbracket. Bolt the steel piece onto a bolster bracket on your trailer so your bunk tilts toward the hull to keep your boat cradled safely for transport.Features: Swivelbracket tilts your trailer's bunk board when your boat is loaded for transport Allows the bunk to snugly cradle your boat's hull Must be used with a bolster bracket and an additional swivel-and-bolster bracket set (sold separately) for 1 bunk board Slotted design lets you adjust the height of the bracket during installation Bolt-on installation Attaches to bolster bracket on your trailer Mounting hardware not included 11-Gauge, zinc-plated steel resists rust and corrosion Made in the USA Specs: Quantity: 1 swivelbracket Dimensions: 1-3/8" wide x 1-7/8" tall x 3-1/2" long Slot dimensions: 1-1/4" long x 3/8" wide
Help keep your boat in place when it's loaded on your trailer with this zinc-plated swivelbracket. Bolt the steel piece onto a bolster bracket on your trailer so your bunk tilts toward the hull to keep your boat cradled safely for transport.Features: Swivelbracket tilts your trailer's bunk board when your boat is loaded for transport Allows the bunk to snugly cradle your boat's hull Must be used with a bolster bracket and an additional swivel-and-bolster bracket set (sold separately) for 1 bunk board Bolt-on installation Attaches to bolster bracket on your trailer Mounting hardware not included 11-Gauge, zinc-plated steel resists rust and corrosion Made in the USA Specs: Quantity: 1 swivelbracket Dimensions: 1-3/8" wide x 1-7/8" tall x 3" long Mounting hole diameter: 1/2"
Rust-resistant assemblies let you install 2 bunk boards on your boat trailer. Swivelbrackets enable bunks to tilt when loading a boat. Mounting slots allow for height adjustment. Dimpled surfaces keep brackets from sliding along the trailer frame.Features: Bolster-and-swivelbracket assemblies allow you to install 2 bunk boards on your boat trailer Dimpled bolster bracket surfaces help prevent the brackets from sliding along the trailer frame Mounting slots permit as much as 3-3/4" of height adjustment during installation Each bolster bracket installs vertically on your boat trailer's frame with a U-bolt (sold separately) Strong swivelbrackets let you tilt the bunk boards Helps you to fit the boat hull snugly onto trailer during the loading process Hardware is included for attaching the swivelbrackets to the bolster brackets 11-Gauge, galvanized steel resists rust and corrosion Suitable for saltwater exposure Made in the USA Specs: Quantity: 4 bracket assemblies Overall height: 9" Dimensions of bolster bracket: 8" tall x 2-1/2" wide Mounting slot dimensions: 2-3/4" long x 1/2" wide Spacing between mounting slots: 1/2" Dimensions of swivelbracket: 3-1/2" long x 1-3/8" wide x 2" tall Flange mounting hole diameters: 3/8" Flange mounting hole spacing: 2-1/2" apart on center Bolster-and-swivel-bracket assemblies are typically mounted upright on a boat trailer's crossmembers.
Help keep your boat in place when it's loaded on your trailer with this zinc-plated swivelbracket. Bolt the steel piece onto a bolster bracket on your trailer so your bunk tilts toward the hull to keep your boat cradled safely for transport.Features: Swivelbracket tilts your trailer's bunk board when your boat is loaded for transport Allows the bunk to snugly cradle your boat's hull Must be used with a bolster bracket and an additional swivel-and-bolster bracket set (sold separately) for 1 bunk board Bolt-on installation Attaches to bolster bracket on your trailer Mounting hardware not included 11-Gauge, zinc-plated steel resists rust and corrosion Made in the USA Specs: Quantity: 1 swivelbracket Dimensions: 1-3/8" wide x 1-7/8" tall x 3-1/2" long Mounting hole diameter: 1/2"
... Each assembly attaches to the trailer frame with 2 U-bolts (sold separately) for a sturdy connection. Swivelbrackets enable bunks to tilt when loading a boat.Features: Bolster-and-swivel-bracket assemblies allow you to install 2 bunk boards on your boat trailer Extra-sturdy connection to trailer frame ensures support for the bunk boards Each bolster bracket attaches with 2 U-bolts (sold separately), as opposed to a standard bracket that attaches with 1 U-bolt Mounting slots permit as much as 3" of height adjustment during installation Bolster brackets install vertically on your boat trailer's frame Heavy-duty swivelbrackets let you tilt the bunk boards Helps you to fit the boat hull snugly onto your trailer during the loading process Hardware is included for attaching the swivelbrackets to the bolster brackets 3 Bolt holes for a strong, sturdy connection to the bunk board 7-Gauge, galvanized steel resists rust and corrosion Suitable for saltwater exposure Made in the USA Specs: Quantity: 4 bracket assemblies Overall height: 16-1/4" Dimensions of bolster bracket: 15" tall x 4" wide Mounting slot dimensions: 3" long x 1/2" wide Horizontal spacing between slots: 1-3/4" Dimensions of swivelbracket: 3-1/2" long x 1-1/2" wide x 2" tall Flange mounting hole diameters: 3/8" Flange mounting hole spacing: 2-1/2" apart on center 1-1/4" Between each of the 3 holes Bolster-and-swivel-bracket assemblies are typically mounted upright on a boat trailer's crossmembers.
Rust-resistant assemblies let you install 2 bunk boards on your boat trailer. Swivelbrackets enable bunks to tilt when loading a boat. Mounting slots allow for height adjustment. Dimpled surfaces keep brackets from sliding along the trailer frame.Features: Bolster-and-swivelbracket assemblies allow you to install 2 bunk boards on your boat trailer Dimpled bolster bracket surfaces help prevent the brackets from sliding along the trailer frame Mounting slots permit as much as 3-3/4" of height adjustment during installation Each bolster bracket installs on your boat trailer's frame with a U-bolt (sold separately) Strong swivelbrackets let you tilt the bunk boards Helps you to fit the boat hull snugly onto trailer during the loading process Hardware is included for attaching the swivelbrackets to the bolster brackets 11-Gauge, galvanized steel resists rust and corrosion Suitable for saltwater exposure Made in the USA Specs: Quantity: 4 bracket assemblies Overall height: 13" Dimensions of bolster bracket: 12" tall x 2-1/2" wide Mounting slot dimensions: 4-3/4" long x 1/2" wide Spacing between mounting slots: 1/2" Dimensions of swivelbracket: 3-1/2" long x 1-3/8" wide x 2" tall Flange mounting hole diameters: 3/8" Flange mounting hole spacing: 2-1/2" apart on center Bolster-and-swivel-bracket assemblies are typically mounted upright on a boat trailer's crossmembers.
Rust-resistant assemblies let you install 2 bunk boards on your boat trailer. Swivelbrackets enable bunks to tilt when loading a boat. Mounting slots allow for height adjustment. Dimpled surfaces keep brackets from sliding along the trailer frame.Features: Bolster-and-swivelbracket assemblies allow you to install 2 bunk boards on your boat trailer Dimpled bolster bracket surfaces help prevent the brackets from sliding along the trailer frame Mounting slots permit as much as 3-3/4" of height adjustment during installation Each bolster bracket installs vertically on your boat trailer's frame with a U-bolt (sold separately) Strong swivelbrackets let you tilt the boards Helps you to fit the boat hull snugly onto trailer during the loading process Hardware is included for attaching the swivelbrackets to the bolster brackets 11-Gauge, galvanized steel resists rust and corrosion Suitable for saltwater exposure Made in the USA Specs: Quantity: 4 bracket assemblies Overall height: 11" Dimensions of bolster bracket: 10" tall x 2-1/2" wide Mounting slot dimensions: 3-3/4" long x 1/2" wide Spacing between mounting slots: 1/2" Dimensions of swivelbracket: 3-1/2" long x 1-3/8" wide x 2" tall Flange mounting hole diameters: 3/8" Flange mounting hole spacing: 2-1/2" apart on center Bolster-and-swivel-bracket assemblies are typically mounted upright on a boat trailer's crossmembers.
Galvanized steel swivelbracket attaches to a bolster bracket on your trailer. It lets you tilt your bunk board to the proper angle, ensuring that your boat's hull fits snugly during transport. ... Features: Heavy-duty swivelbracket lets you tilt the bunk board on your boat trailer Helps you to fit the boat hull snugly onto trailer during the loading process Requires 2 swivelbrackets and 2 bolster brackets (sold separately) for 1 bunk board Bolt-on installation Attaches to bolster bracket on trailer Does not include mounting hardware 11-Gauge, galvanized steel construction is sturdy and resists corrosion Made in the USA Specs: Quantity: 1 swivelbracket Overall dimensions: 3-1/2" long x 1-3/8" wide x 2" tall Diameter of swivel mounting hole: 1/2" Diameter of flange mounting holes (each): 3/8" Spacing of mounting holes: 2-1/2" apart on center Galvanized Steel Galvanized steel parts are hot-dipped in zinc after being stamped.
This heavy-duty, galvanized steel swivelbracket attaches to your CE Smith double U-bolt bolster bracket on your boat trailer and lets you tilt your bunk board to the proper angle. ... Features: Heavy-duty swivelbracket lets you tilt the bunk board on your boat trailer Helps you to fit the boat hull snugly onto the trailer during the loading process Requires 2 swivelbrackets and 2 bolster brackets (sold separately) for 1 bunk board Ideal for use with CE Smith double U-bolt bolster brackets (CE10190GA, CE10191GA, CE10192GA, and CE10196G - sold separately) 3 Bolt holes allow for a strong, sturdy connection to the bunk board Bolt-on installation Attaches to bolster bracket on trailer Does not include mounting hardware 7-Gauge, galvanized steel construction is sturdy and resists corrosion Suitable for saltwater exposure Made in the USA Specs: Quantity: 1 swivelbracket Overall dimensions: 3-1/2" long x 1-1/2" wide x 2" tall Diameter of swivel mounting hole: 1/2" Diameter of flange mounting holes: 3/8" Flange mounting hole spacing: 2-1/2" apart on center 1-1/4" Between each of the 3 holes Galvanized Steel Galvanized steel parts are hot-dipped in zinc after being stamped.
... Each assembly attaches to the trailer frame with 2 U-bolts (sold separately) for a sturdy connection. Swivelbrackets enable bunks to tilt when loading a boat.Features: Bolster-and-swivel-bracket assemblies allow you to install 2 bunk boards on your boat trailer Extra-sturdy connection to trailer frame ensures support for the bunk boards Each bolster bracket attaches with 2 U-bolts (sold separately), as opposed to a standard bracket that attaches with 1 U-bolt Mounting slots permit as much as 3" of height adjustment during installation Bolster brackets install vertically on your boat trailer's frame Heavy-duty swivelbrackets let you tilt the bunk boards Helps you to fit the boat hull snugly onto your trailer during the loading process Hardware is included for attaching the swivelbrackets to the bolster brackets 3 Bolt holes for a strong, sturdy connection to the bunk board 7-Gauge, galvanized steel resists rust and corrosion Suitable for saltwater exposure Made in the USA Specs: Quantity: 4 bracket assemblies Overall height: 12-1/4" Dimensions of bolster bracket: 11-3/4" tall x 4" wide Mounting slot dimensions: 3" long x 1/2" wide Horizontal spacing between slots: 1-1/4" Horizontal spacing between slots: 1/2" Dimensions of swivelbracket: 3-1/2" long x 1-1/2" wide x 2" tall Flange mounting hole diameters: 3/8" Flange mounting hole spacing: 2-1/2" apart on center 1-1/4" Between each of the 3 holes Bolster-and-swivel-bracket assemblies are typically mounted upright on a boat trailer's crossmembers.
... Each assembly attaches to the trailer frame with 2 U-bolts (sold separately) for a sturdy connection. Swivelbrackets enable bunks to tilt when loading a boat.Features: Bolster-and-swivel-bracket assemblies allow you to install 2 bunk boards on your boat trailer Extra-sturdy connection to trailer frame ensures support for the bunk boards Each bolster bracket attaches with 2 U-bolts (sold separately), as opposed to a standard bracket that attaches with 1 U-bolt Mounting slots permit as much as 3" of height adjustment during installation Bolster brackets install vertically on your boat trailer's frame Heavy-duty swivelbrackets let you tilt the bunk boards Helps you to fit the boat hull snugly onto your trailer during the loading process Hardware is included for attaching the swivelbrackets to the bolster brackets 3 Bolt holes allow for a strong, sturdy connection to the bunk board 7-Gauge, galvanized steel resists rust and corrosion Suitable for saltwater exposure Made in the USA Specs: Quantity: 4 bracket assemblies Overall height: 10-1/4" Dimensions of bolster bracket: 9-3/4" tall x 4" wide Mounting slot dimensions: 3" long x 1/2" wide Horizontal spacing between slots: 1-1/4" Vertical spacing between slots: 1/2" Dimensions of swivelbracket: 3-1/2" long x 1-1/2" wide x 2" tall Flange mounting hole diameters: 3/8" Flange mounting hole spacing: 2-1/2" apart on center 1-1/4" Between each of the 3 holes Bolster-and-swivel-bracket assemblies are typically mounted upright on a boat trailer's crossmembers.
This lightweight and corrosion-resistant aluminum swivelbracket attaches to a bolster bracket on your trailer. It lets you tilt your bunk board to the proper angle, ensuring that the boat's hull fits snugly during transport.Features: Swivelbracket lets you tilt the bunk board on your boat trailer Helps you to fit the boat hull snugly onto trailer during the loading process Requires 2 swivelbrackets and 2 bolster brackets (sold separately) for 1 bunk board Bolt-on installation Attaches to bolster bracket on trailer Does not include mounting hardware 3 Bolt holes allow for a strong connection to the bunk board Aluminum construction is sturdy and offers superior corrosion resistance Made in the USA Specs: Quantity: 1 swivelbracket Overall dimensions: 3-1/2" long x 1-1/2" wide x 2" tall Diameter of swivel mounting hole: 1/2" Diameter of flange mounting holes (each): 3/8" Spacing of mounting holes: Outer holes (center to center): 2-1/2" Inner holes (center to center): 1-1/4"
Rust-resistant assemblies let you install 2 roller bunks on your boat trailer. Swivelbrackets enable bunks to tilt when loading a boat. Mounting slots allow for height adjustment. Dimpled surfaces keep brackets from sliding along the trailer frame.Features: Bolster-and-swivelbracket assemblies allows you to install 2 roller bunks on your boat trailer Dimpled bolster bracket surfaces help prevent the brackets from sliding along the trailer frame Mounting slots permit as much as 3-3/4" of height adjustment during installation Each bolster bracket installs on your boat trailer's frame with a single U-bolt (sold separately) Strong swivelbrackets let you tilt the roller bunks Helps you to fit the boat hull snugly onto trailer during the loading process Hardware is included for attaching the swivelbrackets to the bolster brackets 11-Gauge, galvanized steel resists rust and corrosion Suitable for saltwater exposure Made in the USA Specs: Quantity: 4 bracket assemblies Overall height: 11" Dimensions of bolster bracket: 10" tall x 2-1/2" wide Mounting slot dimensions: 3-3/4" long x 1/2" wide Spacing between mounting slots: 1/2" Dimensions of swivelbracket: 1-1/4" long x 1-3/4" wide x 2" tall Top flange mounting hole diameter: 7/16" Bolster-and-swivel-bracket assemblies are typically mounted upright on a boat trailer's crossmembers.
Rub marks, squeaks, or crooked loading? A swivel bolster lets you pivot your bunk so it sits flush to your hull. You set the height, it spreads the boat's contact, and you'll load your boat smoother while protecting it's finish.Features to know about Centered, Scuff-Free Loading When a boat loads crooked or rubs the same spot every trip, it's usually a bunk alignment issue, not the hull. Swivel bolster brackets let you adjust your bunk boards to where they should be, so the hull sits right and loading feels smooth. The 2-3/4" vertical slot gives you the wiggle room to dial in bunk height for your boat, and the non-slip dimples bite into the board to prevent movement and boost load capacity.
This rust-resistant assembly helps support 1 bunk board on your boat trailer. Swivelbracket enables board to tilt when loading a boat. Mounting slots allow for height adjustment. Dimpled surface keeps bracket from sliding along trailer frame.Features: Bolster-and-swivelbracket assembly lets you mount a bunk board on your boat trailer Stabilizes one end of the bunk board - additional bracket assembly (sold separately) required for opposite end of board Dimpled bolster bracket surface helps prevent the bracket from sliding along the trailer frame Mounting slots permit as much as 3-3/4" of height adjustment during installation Bracket installs vertically on your boat trailer's frame with a U-bolt (sold separately) Strong swivelbracket lets you tilt the bunk board Helps you to fit the boat hull snugly onto trailer during the loading process Hardware is included for attaching the swivelbracket to the bolster bracket 11-Gauge, galvanized steel resists rust and corrosion Suitable for saltwater exposure Made in the USA Specs: Quantity: 1 bracket assembly Overall height: 9" Dimensions of bolster bracket: 8" tall x 2-1/2" wide Mounting slot dimensions: 2-3/4" long x 1/2" wide Spacing between mounting slots: 1/2" Dimensions of swivelbracket: 3-1/2" long x 1-3/8" wide x 2" tall Flange mounting hole diameters: 3/8" Flange mounting hole spacing: 2-1/2" apart on center Bolster-and-swivel-bracket assemblies are typically mounted upright on a boat trailer's crossmembers.
Rub marks, squeaks, or crooked loading? This swivel top angle replaces the pivoting head on your bolster bracket, letting your bunk sit flush to the hull. Pair it with an upright bracket to complete your setup.Fixed bunks can fight the boat and leave rub marks in the same spots. This compact swivelbracket lets you adjust your bunk boards so they sit flush to your hull. That spreads contact, reduces rub, and helps protect your finish.
This rust-resistant assembly helps support 1 bunk board on your boat trailer. Swivelbracket enables board to tilt when loading a boat. Mounting slots allow for height adjustment. Dimpled surface keeps bracket from sliding along trailer frame.Features: Bolster-and-swivelbracket assembly lets you mount a bunk board on your boat trailer Stabilizes one end of the bunk board - additional bracket assembly (sold separately) required for opposite end of board Dimpled bolster bracket surface helps prevent the bracket from sliding along the trailer frame Mounting slots permit as much as 3-3/4" of height adjustment during installation Bracket installs vertically on your boat trailer's frame with a U-bolt (sold separately) Strong swivelbracket lets you tilt the bunk board Helps you to fit the boat hull snugly onto trailer during the loading process Hardware is included for attaching the swivelbracket to the bolster bracket 11-Gauge, galvanized steel resists rust and corrosion Suitable for saltwater exposure Made in the USA Specs: Quantity: 1 bracket assembly Overall height: 13" Dimensions of bolster bracket: 12" tall x 2-1/2" wide Mounting slot dimensions: 4-3/4" long x 1/2" wide Spacing between mounting slots: 1/2" Dimensions of swivelbracket: 3-1/2" long x 1-3/8" wide x 2" tall Flange mounting hole diameters: 3/8" Flange mounting hole spacing: 2-1/2" apart on center Bolster-and-swivel-bracket assemblies are typically mounted upright on a boat trailer's crossmembers.
This rust-resistant assembly helps support 1 bunk board on your boat trailer. Swivelbracket enables board to tilt when loading a boat. Mounting slots allow for height adjustment. Dimpled surface keeps bracket from sliding along trailer frame.Features: Bolster-and-swivelbracket assembly lets you mount a bunk board on your boat trailer Stabilizes one end of the bunk board - additional bracket assembly (sold separately) required for opposite end of board Dimpled bolster bracket surface helps prevent the bracket from sliding along the trailer frame Mounting slots permit as much as 3-3/4" of height adjustment during installation Bracket installs vertically on your boat trailer's frame with a U-bolt (sold separately) Strong swivelbracket lets you tilt the bunk board Helps you to fit the boat hull snugly onto trailer during the loading process Hardware is included for attaching the swivelbracket to the bolster bracket 11-Gauge, galvanized steel resists rust and corrosion Suitable for saltwater exposure Made in the USA Specs: Quantity: 1 bracket assembly Overall height: 11" Dimensions of bolster bracket: 10" tall x 2-1/2" wide Mounting slot dimensions: 3-3/4" long x 1/2" wide Spacing between mounting slots: 1/2" Dimensions of swivelbracket: 3-1/2" long x 1-3/8" wide x 2" tall Flange mounting hole diameters: 3/8" Flange mounting hole spacing: 2-1/2" apart on center Bolster-and-swivel-bracket assemblies are typically mounted upright on a boat trailer's crossmembers.
Rub marks, squeaks, or crooked loading? A swivel bolster lets you pivot your bunk so it sits flush to your hull. You set the height, it spreads the boat's contact, and you'll load your boat smoother while protecting it's finish.Ready to Install: Includes mounting hardware for a straightforward setup. Features to know about Centered, Scuff-Free Loading Swivel bolster brackets let you adjust your bunk boards to where they should be, so the hull sits right and loading feels smooth. The 2-3/4" vertical slot gives you the wiggle room to dial in bunk height for your boat, and the non-slip dimples bite into the board to prevent movement and boost load capacity.
This rust-resistant assembly helps support 1 roller bunk on your boat trailer. Swivelbracket enables bunk to tilt when loading a boat. Mounting slots allow for height adjustment. Dimpled surface keeps bracket from sliding along trailer frame.Features: Bolster-and-swivelbracket assembly lets you mount a roller bunk on your boat trailer Stabilizes one end of the bunk - additional bracket assembly (sold separately) required for opposite end of bunk Dimpled bolster bracket surface helps prevent the bracket from sliding along the trailer frame Mounting slots permit as much as 3-3/4" of height adjustment during installation Bracket installs vertically on your boat trailer's frame with a U-bolt (sold separately) Strong swivelbracket lets you tilt the roller bunk Helps you to fit the boat hull snugly onto trailer during the loading process Hardware is included for attaching the swivelbracket to the bolster bracket 11-Gauge, galvanized steel resists rust and corrosion Suitable for saltwater exposure Made in the USA Specs: Quantity: 1 bracket assembly Overall height: 11" Dimensions of bolster bracket: 10" tall x 2-1/2" wide Mounting slot dimensions: 3-3/4" long x 1/2" wide Spacing between mounting slots: 1/2" Dimensions of swivelbracket: 1-1/4" long x 1-3/4" wide x 2" tall Top flange mounting hole diameter: 7/16" Bolster-and-swivel-bracket assemblies are typically found mounted upright on a boat trailer's crossmembers.
This galvanized steel swivelbracket attaches to a bolster bracket on your trailer. It lets you tilt your bunk board to the proper angle, ensuring that your boat's hull fits snugly during transport. ... Features: Heavy-duty swivelbracket lets you tilt the bunk board on your boat trailer Helps you to fit the boat hull snugly onto trailer during the loading process Requires 2 swivelbrackets and 2 bolster brackets (sold separately) for 1 bunk board Bolt-on installation Attaches to bolster bracket on trailer Does not include mounting hardware 11-Gauge, galvanized steel construction is sturdy and resists corrosion Made in the USA Specs: Quantity: 1 swivelbracket Overall dimensions: 3-1/2" long x 1-3/8" wide x 2" tall Diameter of swivel mounting hole: 1/2" Diameter of flange mounting holes (each): 3/8" Spacing of mounting holes: 2" apart on center Galvanized Steel Galvanized steel parts are hot-dipped in zinc after being stamped.
Rub marks, squeaks, or crooked loading? A swivel bolster adds a little pivot so the bunk sits flush to your hull. You set the height, it spreads the boat's contact, and you'll load your boat smoother while protecting it's finish.Use one to replace a failed bracket, or grab a set and reset your bunks so loading feels smooth and predictable again. Specs Application Quantity: 1 bracket Dimensions and Weight Overall dimensions: 10" long x 2-1/2" wide x 1" tall Slot length: 2-3/4" Weight: 1.31 lbs Material Material: galvanized steel Color: silver General Warranty: 1-year limited
This rustproof bolster bracket helps support 1 bunk board on your boat trailer when used with a swivelbracket (sold separately). Mounting slots allow for height adjustment. ... Features: Bolster bracket lets you attach a swivelbracket (sold separately) for mounting a bunk board on your boat trailer 2 Brackets are required per bunk board (additional bracket sold separately) Dimpled surface helps prevent the bracket from sliding along the trailer frame Mounting slots permit as much as 2-3/4" of height adjustment during installation Bracket installs vertically on your boat trailer's frame with a U-bolt (sold separately) Lightweight aluminum is rustproof and corrosion resistant Great for freshwater and saltwater use Made in the USA Specs: Quantity: 1 bracket Overall dimensions: 8" tall x 2-1/2" wide Mounting slot dimensions: 2-3/4" long x 1/2" wide Spacing between mounting slots: 1/2" Swivelbracket mounting hole diameter: 1/2" Bolster brackets are typically mounted upright on a boat trailer's crossmembers.
... Swivelbracket sold separately.Features: Bolster bracket lets you attach a swivelbracket (sold separately) for mounting a bunk board to your boat trailer 2 Brackets are required per bunk board (additional bracket sold separately) Extra-sturdy connection to trailer frame ensures support for the bunk board Bracket attaches with 2 U-bolts (sold separately), as opposed to a standard bracket that attaches with 1 U-bolt Mounting slots permit as much as 3" of height adjustment during installation Bracket installs vertically on your boat trailer's frame 7-Gauge, galvanized steel resists rust and corrosion Suitable for saltwater exposure Made in the USA Specs: Quantity: 1 bracket Overall dimensions: 15" tall x 4" wide Mounting slot dimensions: 3" long x 1/2" wide Horizontal spacing between slots: 1-3/4" Swivelbracket mounting hole diameter: 1/2" Bolster brackets are typically mounted upright on a boat trailer's crossmembers.
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