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  1. Trailer Hitch Lock
  2. Fastway
  3. Fits 2-1/2 Inch Hitch
  4. Standard Pin Lock
  5. Keyed Unique
  6. 3-5/8 Inch Span
Fastway Trailer Hitch Lock and Adjustment Pin Lock Set for Flash E Series HD Ball Mounts
Fastway

Fastway Trailer Hitch Lock and Adjustment Pin Lock Set for Flash E Series HD Ball Mounts

Part Number: FA86-00-3685
In Stock
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$59.27
Retail:$65.21
You Save: 9%
Trailer Hitch Lock
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Designed for your Flash E Series ball mount, this lock set includes a 5/8" lock to replace the adjustment pin that holds the ball mount platform in place on the shank, and a 5/8" lock to secure the ball mount in your 2-1/2" receiver. Great Prices for the best trailer hitch lock from Fastway. Fastway Trailer Hitch Lock and Adjustment Pin Lock Set for Flash E Series HD Ball Mounts part number FA86-00-3685 can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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  • Reviews (318)
  • Q & A (0)
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Fastway Trailer Hitch Lock - FA86-00-3685

Highlights

  • Secure dual pin lock system: Includes receiver and adjustment locks, both keyed alike.
  • Durable steel construction: Ensures long-lasting security for your trailer hitch.
  • Weather-resistant design: Rubber dust caps keep cylinders free from water and debris.
  • Flush-style lock fit: Suited for 2-1/2" hitches with 5/8" pin diameter.
  • Easy operation: Innovative tube key lock cylinder is harder to pick and resists drilling.
  • Versatile for Fastway mounts: Designed for Flash E Series HD adjustable ball mounts.

Features to know about

Unyielding Security for Your Hitch: Keyed-Alike Locking System

Worried about your hitch being borrowed without permission? The Fastway Trailer Hitch Lock and Adjustment Pin Lock Set features a robust keyed-alike system that ensures both your ball mount and platform are securely locked in place. With just one key, you can lock or unlock your entire setup, making sure your hitch stays exactly where it belongs—attached to your truck. The locks include a tube key cylinder which enhances security, making them resistant to picking and drilling, giving you peace of mind even in high-theft areas.

Reliable Protection Against the Elements: Weather-Resistant Design

Does your towing environment expose your gear to harsh weather conditions? This lock set is designed with weather-resistant rubber dust caps that keep the lock cylinders free from water and debris. These caps ensure longevity and smooth functioning of the locks, even after exposure to rain or dirt. However, keep an eye on the caps as some customers have found they can fall off with repeated use.

Strong Yet Stylish: Chrome-Plated Steel Construction

Looking for durability without sacrificing style? The Fastway Lock Set boasts a sturdy steel construction with a sleek chrome-plated finish. Not only does this make for a tough, long-lasting lock, but it also resists corrosion and adds a stylish touch to your towing setup. Your hitch will not only perform well but look good while doing it—a perfect combination of form and function.

Optimized Fit for Your Trailer: Customizable Pin Lengths

Struggling to find a perfect fit for your hitch setup? This lock set addresses that with a hitch receiver lock featuring a 3-5/8” inside pin length and a locking adjustment pin with a 4-1/2” pin length, ensuring a correct fit for your 2-1/2" flash E Series ball mounts. These options provide a snug fit, giving you predictable and reliable towing without the annoying rattle.

Peace of Mind with Secure Attachment: Flush-Style Lock Design

Sick of standard pins that just don't secure your loading as you’d like? The flush-style design of these locks eliminates the need for a standard hitch pin and clip, securely locking both your hitch receiver and ball mount platform. This helps prevent theft, ensuring that your towing gear stays right where it should be—securely connected to your vehicle.

Versatility for All Your Towing Needs: Compatibility with Flash E Series Ball Mounts

Have different towing requirements on different days? This lock set is tailor-made for use with Fastway Flash E Series ball mounts such as #FA42-00-2625, #FA42-00-2825, and #FA42-00-2925. With its compatibility with these adjustable ball mounts, you can effortlessly adapt to different towing needs without hassle, making it perfect for anyone frequently switching between trailers or loads.

Specs

Application

  • Fast Way Flash E HD Series adjustable ball mounts: FA42-00-2625, FA42-00-2825, and FA42-00-2925
    • Fits 2-1/2" hitch receivers

Hitch Receiver Lock

  • Pin diameter: 5/8"
  • Inside pin length: 3-5/8"

Locking Adjustment Pin

  • Pin diameter: 5/8"
  • Inside pin length: 4-1/2"

86-00-3685 Fast Way Hitch Receiver Lock and Adjustment Pin Lock Set for Flash E Series HD Ball Mounts - 2-1/2" Hitches




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Customer Satisfaction Score:

Ratings & Reviews

4.7

318 reviews
Designed for your Flash E Series ball mount, this lock set includes a 5/8" lock to replace the adjustment pin that holds the ball mount platform in place on the shank, and a 5/8" lock to secure the ball mount in your 2-1/2" receiver.

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See what our Experts say about this Fastway Trailer Hitch Lock

  • Does Flash Solid Steel HD Adjustable Ball Mount Come With 8 Inch Rise/Drop
    I'm not sure if you're looking for rise or drop but the # FA49-00-5925 is the closest to 8" for the Flash Solid Steel HD. The only other option would be on the low side which is # FA49-00-5625. This has a 6" drop and 7" rise. If you stick with the Flash Solid Steel HD then you can use the # FA86-00-4225 for a locking hitch pin and adjustment pin. For an 8" rise/drop that fits a 2-1/2" receiver you could use the # FA42-00-2825. This has an aluminum shank with a capacity of 18,000 lbs for...
    view full answer...
  • Keyed Alike Locking Pin For Ball Adjustment And Hitch Pin On Fastway Ball Mount
    The Fastway Flash E Series Adjustable, Aluminum Ball Mount - 2 Chrome Balls - 6" Drop, 7" Rise - 10K, # FA42-00-2600 you said you have is a fit for 2 inch hitch receivers not 2-1/2 inch hitch receivers. The Fastway Trailer Hitch Lock and Adjustment Pin Lock Set for Flash E Series Ball Mounts, # FA86-00-3660, is a fit for this hitch and its compatible 2 inch receiver opening measured inside to inside. I'm guessing that you measured the receiver from outside vs. the inside opening and this...
    view full answer...
  • Adjustable 20,000 lb Ball Mount Option with Silver Colored Hitch Ball
    I have a possible solution for you, but Curt does not offer a silver two ball attachment for the Curt Adjustable Ball Mount # C45902. One possible solution for you is the Fastway E Series HD Adjustable 18K Ball Mount # FA42-00-2625. A nice feature about the Fastway ball mount is the corrosion resistant aluminum construction. This will be good if you are in a cold climate with salt on the roads. A hitch lock is also available for this ball mount, # FA86-00-3685. If you don't need both...
    view full answer...
  • Which Fastway Ball Mount For 14,000 lb Trailer
    For a 14,000 lb trailer, you'll need a Fastway ball mount for a 2-1/2 inch hitch receiver, as the highest capacity of their ball mounts for a 2 inch receiver is 10,000 lbs. So if you have a 2-1/2 inch receiver, you can use any of the following, depending on the rise or drop you need: - 6" Rise/Drop: Flash E Series HD Adjustable 2-Ball Mount # FA42-00-2625 - 8" Rise/Drop: Flash E Series HD Adjustable 2-Ball Mount # FA42-00-2825 - 10" Rise/Drop: Flash E Series HD Adjustable 2-Ball Mount...
    view full answer...
  • Fastway Lock Set Compatible with Flash E Series HD Ball Mount
    The Trailer Hitch Lock # FA86-00-3685 is what you need for the Flash E Series HD Adjustable Ball Mount # FA42-00-2825.
    view full answer...
  • Weight Capacity of Fastway Trailer Hitch Lock and Adjustment Pin Lock Set # FA86-00-3685
    The Fastway Trailer Hitch Lock and Adjustment Pin Lock Set # FA86-00-3685 referenced in your question does not have a specific towing weight capacity. These will be used to secure the ball mount shank into the hitch receiver and the ball mount platform to the ball mount on the Flash E Series Ball Mounts like # FA42-00-2625. You will simply follow the weight capacity of the ball mount or whichever component in your towing system has the lowest rating.
    view full answer...
  • Can I Use A Standard Pin And Clip With The Fastway Ball Mount FA42-00-2825
    Yes you can absolutely use a standard pin and clip with the Fastway # FA42-00-2825. Any 5/8" diameter pin with at least 3-5/8" of usable space will do fine. I recommend the Gen-Y hitch pin # 325-GH-099. This will be very similar to the pin and clip that comes with the Fastway # FA42-00-2825. If you have no need for a lock it will do just fine.
    view full answer...
  • Recommended Locking Hitch Pins 5/8 Inch Diameter Keyed Alike for 2-1/2 Inch Trailer Hitch Receiver
    The Fastway Trailer Hitch Lock and Adjustment Pin Lock Set for Flash E Series HD Ball Mounts # FA86-00-3685 does not allow a 3rd pin keyed alike although the 2 in the kit come keyed alike. If you want 3 pins 5/8 inch diameter, then our etrailer.com Hitch Receiver Lock - Extra Long - Flush Design for 2-1/2" Trailer Hitches # e98881 is the only option, but you can get as many as you like. This will work with the Fastway Trailer Hitches but won't have separate lengths like the kit.
    view full answer...
  • Trailer Hitch Lock and Adjustment Pin Lock Set for Flash E Series HD Ball Mounts
    The Trailer Hitch Receiver Lock # e98881 is the longest of the hitch receiver locks available and it has a 3-5/8" inside width, which you can use as the lock for your Flash E Series HD Adjustable 2-Ball Mount # FA42-00-2825. There is not a separate locking adjustment pin available, however, which is what you may have been referring to. For that you will need the Fastway Trailer Hitch Lock and Adjustment Pin Lock Set for Flash E Series HD Ball Mounts # FA86-00-3685. This lock set fits...
    view full answer...
  • Will Fastway Trailer Hitch Lock be Safe for 18,000 lb Rated Hitch?
    The Fastway Trailer Hitch Lock and Adjustment Pin Lock Set # FA86-00-3685 does not have a particular weight capacity. It has been designed for use with Fastway Flash E Series ball mounts like # FA42-00-2825. The lock set will fit 2-1/2" receivers and has a 5/8" pin diameter. I have added a video review of this product for you to take a look at.
    view full answer...
  • Are the Rubber Dust Covers Available for Replacement for the FastWay Trailer Hitch Lock
    Unfortunately Walker, the rubber pieces on the Fastway Trailer Hitch Lock and Adjustment Pin Lock Set for Flash E Series HD Ball Mounts # FA86-00-3685 are not offered for replacement. So, you'd need to purchase the entire hitch lock.
    view full answer...
  • Locking Pin Set for Fastway 42-00-2825 and 42-00-2925
    Hi Lori; the Fastway Trailer Hitch Lock and Adjustment Pin Lock Set for Flash E Series HD Ball Mounts # FA86-00-3685 you were looking at is exactly what you need. This fits both the # FA42-00-2825 and # FA42-00-2925.
    view full answer...
  • Keyed-Alike Locks for 2-1/2 Hitch Receiver and Ball Mount
    We have keyed-alike hitch locks for the 2-1/2-inch hitch on your Ram 2500 that are displayed on the linked page. All of the items shown can be ordered in multiples that are keyed alike. You will just want to confirm the necessary length and diameter to match your hitch accessories. We have standard pin locks like # e98881 and pin lock sets like # FA86-00-3685 and we also have special vehicle-specific BOLT locks that can be coded to use your truck's key. Part # BL7018448 will code to a...
    view full answer...
  • How to Get Replacement Key 311 For Fastway Hitch Lock
    Hi there Joyce. Thanks for the question and it's pretty easy to get key 311 for your Fastway coupler locks. All you have to do is order the following and you're set: - Replacement Tube Keys for Fastway Universal Coupler Lock - Key 311 # FA-KEY-311 This will get you two keys which is nice as you can keep one for a spare.
    view full answer...
  • Recommendations for Locking Hitch Pin and Locking Adjustable Ball Mount Pin Keyed Alike
    It sounds like you are talking about a lock set that includes one hitch lock and a second lock for an adjustable ball mount. We have locking pin set # FA86-00-3685 that could potentially work for you. In this set the 5/8 inch diameter hitch lock has a inside pin length of 3-5/8 inches. The adjustment pin is also 5/8 inch and has a length of 4-1/2 inches. We also have lock set # AM3492. It also includes two 5/8 inch diameter locking pins. The inside span of the hitch lock is 3-5/16 inches...
    view full answer...
  • Can Fastway Self-Locking Adjustable 3-Ball Mount be Used with 3 Inch Receiver and Reducer Sleeve
    I spoke with my contact at Fastway regarding the Self-Locking Adjustable 3-Ball Mount 2.5 Inch # DTALBM6825-3S referenced in your question. He stated that this actually will not work with the 3 inch receiver on your Ford F-350, even when using the Ford provided reducer sleeve. This is because of the design on the self-locking system that is utilized with this particular ball mount. The integrated locking knobs on the shank will do a great job of securing itself to the reducer sleeve, but...
    view full answer...
  • How to Choose Adjustable Ball Mount for Chevy Silverado & 2-1/2 Hitch
    When determining the rise or drop needed for a ball mount, there are two measurements you will want to take. Starting with your 2017 Chevy Silverado, you will want to take a measurement from the ground to the top of the trailer hitch receiver when the truck is on level ground. Then on your trailer, you will measure from the ground to the bottom of the coupler. If the hitch height on your truck is higher, you will need a ball mount with a rise, if the coupler measurement is higher, you...
    view full answer...
  • How to Order Replacement Key for Fastway Trailer Lock FA86-00-3685
    I checked your order notes and it looks like you have the part # FA86-00-3685. With the key number you have on your keys you can order replacements. What you will need to do is search our website for the FA-KEY- followed by the key number and you'll see the correct key. For example if you have key number 302 the key you would need is part # FA-KEY-302.
    view full answer...
  • Hitch Lock and Adjustment Pin Lock Set For 2-1/2 Inch Hitch
    We have hitch lock and adjustment locking pin sets for 2-1/2 inch trailer hitches, but none that have a 1/2 inch adjustable locking pin. The reason is these sets are designed to fit specific ball mounts that have their own pin diameters, and both of the sets we offer have 5/8 inch diameter hitch locks and adjustment locks. There may very well be one with a 1/2 inch pin, but not that we carry; if you let me know what specific ball mount you have I may be able to confirm. What we offer...
    view full answer...
  • Is A Flash Self-Locking Aluminum Ball Mount For 2-1/2 Inch Receiver Available?
    I contacted the manufacturer and there is not a Flash self-locking, aluminum ball mount available like Item # DTLBM9200 in a 2-1/2 inch size. Other options are available but they would be like the Flash E Series HD Adjustable 2-Ball Mount for 2-1/2 inch Hitch, Item # FA42-00-2625. If you wanted a hitch lock then you would need something like Item # FA86-00-3685. I have attached links to our available inventory and to a video for you to check out.
    view full answer...
  • Adjustable Aluminum Ball Mount for a 2017 Chevrolet Silverado 2500 with 2-1/2 Inch Receiver Tube
    We have a number of adjustable ball mounts that will fit the 2-1/2" receiver tube opening on your 2017 Chevrolet Silverado 2500 which I have attached for you. However, the Rapid Hitch Adjustable Aluminum Ball Mount Kit part # AM3400 or part # AM3405 are designed to fit a 2" receiver tube opening therefore will not work for you. The difference between them is that part # AM3405 has a nylon cap which will not require lubrication. They both have zinc plated hitch balls. Instead, I recommend...
    view full answer...
  • Lock For Ball Mount Platform of Fastway Adjustable Ball Mount
    Hey Jeremy, what you'd want is the part # FA86-00-3685 which is a lock set for your Fastway ball mount part # FA42-00-2625 as this gives you a lock for the ball mount to the hitch and the platform of the ball mount ot the shank and uses the same key.
    view full answer...

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Info for this part was:

Employee Andrew K
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Andrew K
Employee Lindsey S
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Video Edited:
Dustin K
Employee Cole B
Installed by:
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Employee Shelly K
Written by:
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