Go for a 5/16 inch diameter shackle when you need a thicker lock for gates, trailers, or storage gear. You'll find options that code to a vehicle key with a one-time turn as well as traditional locks available keyed alike, so you can simplify your key ring. Just confirm your hasp or chain opening is larger than 5/16 inch for an easy fit.
Yes, they're described as durable, reliable, and heavy duty for securing trailers, gates, and storage. They're used on trailer doors, ramp doors, hitches, couplers, and lock boxes. Keying them to your towing vehicle key keeps things simple. If closing feels finicky, check shackle alignment and be sure the lock is fully open before snapping it shut.
Yes, some 5/16 inch padlocks are available keyed alike. Laminated steel options can be ordered so multiple locks share the same key. Be sure to buy the full quantity you need at the same time, since you cannot come back later and get the exact same lock and key combination.
Insert your vehicle key and turn clockwise as far as you can to code it. This one-time process keys the lock to that key and it cannot be re-coded. Confirm the lock matches your vehicle key style before setting. If the key doesn't seem to make a full turn at first, keep steady pressure and complete the turn to set it.
A locksmith may be able to make new keys using the numbers on the lock. Master does not make replacement keys for their padlocks like the example discussed, but locksmiths do get master keys. Take the padlock and any markings to a local locksmith to see what they can do.
No. A 5/16 inch shackle is larger than a 1/4 inch opening, so it won't pass through. Measure the opening you plan to lock and compare it to the shackle diameter. If your hasp or chain link is 1/4 inch, choose a 1/4 inch shackle instead.
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