LD-322 Laminated Hardened Steel Top Security Padlock with Brass Shackle | Wholesale Supplier

The LD-322 laminated hardened steel top security padlock is engineered for applications where physical attack resistance takes priority over compact form factor. Its body is constructed from multiple laminated hardened steel plates riveted together, a design that disperses cutting, drilling, and prying forces across several layers rather than concentrating them on a single solid block. This laminated construction makes the LD-322 notably resistant to bolt cutter attacks and hammer strikes, establishing it as a top security grade padlock for gates, sheds, industrial toolboxes, and construction site equipment. Available in body sizes from 40mm to 70mm, the series covers medium to heavy-duty locking requirements across residential, commercial, and agricultural settings.

The shackle is offered in brass or hardened steel with a diameter of 7 to 10mm and a standard clearance of 20 to 30mm, providing the reach needed for most hasps, chains, and gate latches while keeping the locking point close to the body to minimize shackle exposure. At the heart of the lock sits a 5-pin tumbler mechanism that delivers smooth key operation and meaningful resistance to picking and bumping. The laminated body is finished in silver zinc plating or black, with a brass shackle accent option that combines the cut resistance of hardened steel with the corrosion resistance of brass for the exposed shackle portion. Each padlock is supplied with brass keys for convenient spare access.

For wholesale buyers, hardware distributors, and security equipment suppliers, the LD-322 laminated padlock is a high-value product that appeals to customers seeking visible, robust security at an accessible price point. The riveted laminated construction is instantly recognizable as a heavy-duty design, which supports strong retail presentation. OEM logo engraving, keyed-alike and master key systems, and custom shackle lengths and finishes are available to align with regional market preferences and brand requirements. With a minimum order quantity of 300 pieces, mixed orders across sizes supported, and a production lead time of 15 to 25 days, the LD-322 series offers importers a dependable top security laminated padlock that meets the demanding needs of industrial, commercial, and outdoor applications at competitive wholesale pricing.