A square key brass padlocks factory are equipped with a locking system that uses a uniquely cut square-profile key. This design provides a few notable benefits:

Enhanced Security: The square key profile is less common and more difficult to duplicate than standard keys, which adds an extra layer of security.

Smooth Operation: A well-machined square key system ensures consistent, smooth locking and unlocking.

Tamper Resistance: These locks may be more resistant to common lockpicking techniques due to their unique keyway geometry.

The locking mechanism typically uses a pin-tumbler or wafer configuration that engages securely when the square key is turned.

Square key brass padlocks are available with various shackle configurations:

Standard-length shackles for general use

Long shackles for applications requiring extended reach

Hardened steel shackles for improved resistance to cutting and sawing

Some models also feature double-locking shackles, which secure the shackle at both ends to prevent prying or twisting.

Thanks to their brass construction, these padlocks are suitable for both indoor and outdoor use. They can withstand exposure to rain, humidity, and mild corrosive environments without significant deterioration. However, for extremely harsh outdoor conditions—such as prolonged exposure to saltwater—additional sealing or weatherproofing may be required.

A hallmark of square key brass padlocks is their operational consistency. When manufactured with precision, they open smoothly with minimal key wear and remain reliable after thousands of locking and unlocking cycles. Users can expect the lock to retain functionality over several years, provided it is used within its intended application scope.

The square key mechanism is user-friendly. Most models are designed with ergonomics in mind, allowing easy insertion and rotation of the key. This is particularly important in low-light or cold environments where dexterity might be limited.

https://www.keeperlock.com/product/brass-padlock/be100-square-blade-brass-padlock.html

ART. NO.    
SIZE
BE135
35mm
BE140
40mm
BE145
45mm
BE150
50mm