The Schlage 855118 is the OEM flexible double-hinge steel security hasp, 7-3/4 x 1-3/4 inches, documented in the Schlage Portable Security Catalog. It is sold in a carton of 6 and ships with mounting hardware included. The 855118 is a steel body hasp with a hardened steel locking eye - the hardened staple (locking eye) provides increased cut resistance compared to a standard unhardened steel staple. Schlage designates this hasp for moderate risk locations and recommends pairing it with the Schlage 851226 High Security padlock for best security performance.

The 855118 is part of the Schlage Portable Security product line - the same catalog family as Schlage's commercial and industrial padlocks. The hasp and padlock are complementary products: the hasp provides the mechanical keeper that the padlock shackle locks through. Neither secures a door or gate on its own.

What the Double Hinge Design Does

A standard single-hinge hasp bends at one point. That limits where it can be used - it works on flat, plumb surfaces where the door and the frame meet at a standard flat angle. The moment you try to mount a single-hinge hasp on a gate post corner, a beveled surface, or a door that's slightly warped or out of square, the hasp either leaves gaps at the mounting points or the staple doesn't seat cleanly in the keeper.

The 855118 uses a double hinge (DB, double block) design. With two hinge points instead of one, the hasp body can articulate in two directions simultaneously. The result is a flexible hasp that conforms to angled and irregular mounting surfaces without creating gaps. This is why Schlage specifically calls out corners and angles as the primary use case for the 855118 - the double hinge flexibility is the design feature that makes those applications possible.

Gates are the most common double hinge hasp application. A gate post and a gate door rarely meet at a perfectly flat angle after a few years of use and settlement. A standard hasp would develop play at the mounting screws as the gate shifts. The 855118 flexes with the gate geometry rather than fighting it.

Schlage High Security Hasp: The Hardened Locking Eye

The most common attack on a hasp installation is cutting the staple (locking eye) - the looped steel bar that extends through the keeper and accepts the padlock shackle. On standard hasps, the staple is mild steel and can be cut with bolt cutters in seconds.

The 855118 uses a hardened steel locking eye. Hardened steel resists cutting because the hardening process changes the crystalline structure of the steel, making it significantly more resistant to the shearing force that bolt cutters apply. This doesn't make the hasp cut-proof - nothing is - but it increases the time, effort, and tool quality required to defeat it, which is the correct security metric for a moderate risk location.

Mounting hardware is included with the 855118. The screws cover standard wood and light metal door applications. For higher-security mounting where the screws themselves could be attacked, through-bolting with carriage bolts through the door provides additional resistance.

Schlage Padlocks: Pairing the 855118 with the Right Padlock

Schlage specifically recommends the 851226 High Security padlock for use with the 855118. The hasp and padlock work together as a system - a high-quality hasp with a low-quality padlock still leaves an easy defeat point at the padlock, and vice versa. Matching the security level of the hasp and padlock to the same risk tier is standard practice in commercial security specification.