This listing is for three (3) high security hasps and three (3) hidden shackle padlocks keyed alike. The lock and hasp is also available without the Bump Stop Technology, search 770 - 6271 in our storefront. These locks feature the BumpStop Advanced Cylinder Technology. (for explanation see more product details below). LOCK: High security rekeyable 6-pin hardened diecast steel body is strong, durable and resists corrosion. Lock body conceals shackle - defeats attempts to pry and cut. Has a 3/8in (9mm) diameter boron alloy shackle and 2-7/8in (73mm) wide reinforced die cast body to withstand forcible attacks. Ideal for transportation, vending & industrial applications. HASP: 9in (23cm) wide x 4-1/2in (11cm) high solid steel powder coated hasp. To install: Use hasp as mounting template. A 1/4" gap is recommended for most applications. MOUNTING HARDWARE not included. Six 3/8 carriage bolts (length determined by application), washers and nuts required per unit. FEATURING BumpStop TECHNOLOGY - Lock bumping a surprisingly simple method of breaking in through locked doors and padlocks - is undoubtedly the newest emerging threat to personal property security. And virtually all locks in use today are particularly vulnerable to bumping. Until now. BumpStop Advanced Cylinder Technology employs an innovative, patent pending design which utilizes a unique reverse rake tapered driver pin, high performance springs and tightly machined cylinder chambers. During a bump attempt, this design prevents the transfer of force from the bump key to the pins and therefore blocks rotation of the cylinder so that the lock remains locked.inquire and we can normally have them in a couple of days.