A Long shackle brass padlocks is a locking device featuring a longer-than-standard shackle, typically made from hardened steel or other strong metals, combined with a brass body. The extended shackle provides additional clearance, allowing it to secure larger or awkwardly shaped items, or fit through wider hasps and chains.

The brass body serves as the core housing for the locking mechanism. Brass is favored in padlock construction because of its resistance to corrosion, ease of machining, and adequate strength for everyday security needs. Together, the long shackle and brass body make this padlock a versatile option suitable for many scenarios.

The performance of a long shackle brass padlock largely depends on its ability to resist tampering and unauthorized access. Although no padlock is entirely impervious, several design elements contribute to effective security:

Shackle Material and Hardening: The shackle is often made of hardened steel or boron steel, which increases resistance to cutting and sawing. The long shackle, while providing versatility, can present more exposure, so high-quality materials and treatments are essential.

Locking Mechanism: Many brass padlocks utilize pin tumbler or disc tumbler locking mechanisms. Pin tumblers provide good resistance against picking when combined with precision machining and security pins. Disc tumblers offer higher pick resistance but are less common in long shackle models.

Double Locking Bolts: Some models include double locking bolts that secure both sides of the shackle within the body. This feature enhances resistance to prying or pulling attacks, improving overall security.

Key Control: The complexity of the keyway and use of restricted or patented key profiles can reduce the risk of unauthorized key duplication.

https://www.keeperlock.com/product/brass-padlock/bb600-double-groove-straight-open-brass-padlock.html

ART. NO.    SIZE
BB630    30mm
BB640    40mm
BB650    50mm
BB660    60mm
BB630L    30mm long shackle
BB640L    40mm long shackle