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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
- Non-rekeyable, 4-pin W1 cylinder helps prevent picking
- Carded packaging for showroom display
Manufacturer Resources
Product Specs
- Subcategory:
- Padlocks
- Series:
- 40 Series
- Keyed:
- Yes
- Product Group:
- Other \/ Miscellaneous Hardware
- Product Subgroup:
- Padlocks
- Product Type:
- Padlocks
- Commercial/Residential:
- Residential
- Shackle Diameter:
- 3/8"
- Shackle Width:
- 3/4"
- Padlock Body Width:
- 2-3/4"
- Backset (Distance):
- 2-3/8 or 2-3/4
- Cylinder Classification:
- 4-Pin
- Product Shackle Length:
- 5/8"
- Product Category:
- Door Trim and Accessories
- Department:
- Door Hardware
Master Lock 1KA – Frequently Asked Questions
1) What is the difference between the KA and KD options on the Master Lock 1K laminated steel padlock?
KD is keyed different, so every lock gets its own key. KA is keyed alike, so a group of locks all open with the same key, which is what you want when one person carries a single key for a row of storage units, gates or cabinets. Those are the two keying choices on the 40 Series 1K padlock, and you pick one when you order.
2) Can the Master Lock 1K padlock be rekeyed to my existing master key system?
No. The 1K uses a non-rekeyable 4-pin W1 cylinder, so a locksmith cannot repin it into a master key system. If you need locks that tie into a facility master key system, you need a padlock built for an interchangeable or rekeyable cylinder instead. For matching several 1K locks to one key, order them keyed alike on a single key code rather than trying to rekey them later.
3) Will the 15/16 inch shackle on the Master Lock 1K clear a standard hasp?
The shackle gives 15/16 in (24mm) of clearance height with a 5/16 in (8mm) diameter, so it passes through a typical hasp staple or chain link of that size or larger. It is a short shackle, so measure the combined thickness of the hasp plates and anything else the lock has to pass through before ordering. If you need to capture a chain or a thick locking bar, a long shackle padlock is the better pick.
4) Is the Master Lock 1K padlock good enough for exterior gates and storage units at an apartment property?
It is a commercial grade laminated steel padlock with a 1-3/4 in (44mm) wide body and a hardened steel shackle for cut resistance, and dual ball bearing locking that resists prying. That covers gates, sheds, storage lockers and cabinets. It is catalogued as residential duty, so for high risk exterior points on a commercial site you may want a heavier shrouded or boron shackle lock.
5) How does the Master Lock 1K resist someone cutting or prying it open?
Three things do the work: the laminated steel body, which is layered rather than cast so it resists drilling and prying, the hardened steel shackle for cut resistance, and dual ball bearing locking that holds the shackle on both legs so it cannot be pried or shimmed out of one side. The 4-pin W1 cylinder adds pick resistance.
6) Do Master Lock 1K padlocks come in carded packaging for retail display?
Yes, the 1K ships in carded packaging suited to showroom or shelf display, which matters if you are a distributor or hardware retailer merchandising them rather than issuing them out of a supply room.
How fast can I get the Master Lock 1KA 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 1KA come with a warranty?
Absolutely. The Master Lock 1KA 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 1KA?
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 1KA 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.