OVERVIEW
- Commercial grade padlock features superior protection from drilling and prying
- 1-3/4in (44mm) wide laminated steel body for superior strength
- 15/16in (24mm) tall, 5/16in (8mm) diameter hardened steel shackle for superior cut resistance
- Dual ball bearing locking for maximum pry resistance
- Rekeyable, 5-pin W27 cylinder helps prevent picking
Manufacturer Resources
Product Specs
- Subcategory:
- Padlocks
- Series:
- 1 Series
- Keyed:
- Yes
- Product Group:
- Other \/ Miscellaneous Hardware
- Product Subgroup:
- Padlocks
- Product Type:
- Padlocks
- Commercial/Residential:
- Residential
- Shackle Diameter:
- 5/16" (8mm)
- Shackle Width:
- 3/4" (19mm)
- Padlock Body Width:
- 2-3/4"
- Backset (Distance):
- 2-3/8 or 2-3/4
- Cylinder Classification:
- W1
- Product Shackle Length:
- 5-3/4"
- Product Category:
- Door Trim and Accessories
- Department:
- Door Hardware
Master Lock 21LN-KA – Frequently Asked Questions
1) Will a Master Lock 1 Series laminated padlock with the long shackle fit through a chain link fence gate hasp?
The shackle on this 1 Series laminated steel padlock is 5-3/4 inches long with a 3/4 inch clearance between the legs and a 5/16 inch (8mm) diameter. That combination clears thick hasps, stacked chain, and fence gate latch loops that a standard short shackle will not reach through. What decides it is the 3/4 inch shackle width, since anything wider than that on the hasp eye or chain link will not pass.
2) Can I order several Master Lock 1 Series padlocks that all open with the same key?
Yes. Keyed alike is one of the three keying choices on this laminated steel padlock, alongside keyed different and a body supplied without a cylinder. Keyed alike is what you want for a fleet of gates, sheds, or meter boxes where one key has to open everything. Keyed different gives each lock its own key. Key codes 2065 and 2159 can be selected, and you can note on the order whether a substitute keyed alike number is acceptable.
3) What does the "without cylinder" option on this Master Lock padlock mean?
Ordering the 1 Series laminated padlock without a cylinder gets you the lock body and shackle with no cylinder or keys fitted. That is the choice for a facility that keys its own hardware into an existing master key system, so the locksmith drops their own cylinder in. If you want the lock ready to use out of the box, order it keyed alike or keyed different instead.
4) How much cut and pry resistance does the Master Lock 1 Series laminated padlock actually have?
Two things do the work. The body is 1-3/4 inch (44mm) wide laminated steel, which resists drilling and prying, and the shackle is hardened steel at 5/16 inch (8mm) diameter for cut resistance. Dual ball bearing locking holds the shackle on both legs, so a pry bar on the shackle does not lever it open. That is a commercial grade padlock build, suitable for exterior gates and storage where bolt cutters are the realistic threat.
5) Do I need to pick a key code when I order this padlock, or is it optional?
It's optional. Key code selection on the 1 Series padlock exists so a property manager can match locks already in service on other gates or units. Pick 2065 or 2159 from the code list, or type in the specific key number you already carry. There is also a field to say whether a substitute keyed alike number is acceptable, which is worth using if you just need all the new locks to match each other rather than a legacy key.
6) Is the Master Lock 1 Series laminated padlock keyed or a combination lock?
Keyed. This is a key-operated laminated steel padlock, not a combination or shrouded shackle lock, and it ships with keys unless you order the body without a cylinder. If you need keyless access for a shared gate with rotating crews, a combination padlock is the different product to look for.
How fast can I get the Master Lock 21LN-KA delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the
continental
U.S.
Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit,
reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Master Lock 21LN-KA come with a warranty?
Absolutely. The Master Lock 21LN-KA is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Master Lock 21LN-KA?
You can call, text, or email our expert support team for fast answers. We’re here to help with
product
selection,
installation tips, and troubleshooting. Contact Us
Why buy the Master Lock 21LN-KA from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support,
and
rewards on
every order.
Our team is always ready to help you choose the right product for your project.