About this item
The Detex DX3 GRAY is a kit of three passive hinge-side deadbolts that adds supplementary anti-pry protection to the hinge edge of out-swing commercial doors. The DX bolts mount through the door at the hinge stile and engage steel keepers in the frame, creating fixed locking points on the hinge side independent of the lockset on the strike side. If an attacker removes the hinge pins, cuts the hinges, or pries the hinge edge with a crowbar, the DX bolts keep the door locked and secure to the frame. Kit ships with three one-piece stainless steel bolts and through-bolt mounting hardware (machine screws with sex-nut fasteners). Gray (standard) or Black finish, specified in order. SKU DX3 GRAY. In stock.
About Hinge Bolts and Why They Matter
Out-swing commercial doors expose the hinge barrels and hinge pins on the building exterior. Standard mortise hinges with non-removable pins resist pin extraction, but they don't stop a determined attacker who cuts through the hinge plates, pries the hinge edge with a crowbar, or removes the entire hinge assembly. Once the hinge side fails, the door pivots open even though the lockset remains engaged on the strike side. Hinge bolts solve this with passive secondary deadbolts on the hinge edge: cylindrical steel bolts that protrude from the door into matching keepers in the frame whenever the door is closed. The bolts add nothing the user has to operate. They are invisible when the door is shut. They simply give the hinge edge its own locking points beyond the hinges themselves.
Specifications
Bolt count: 3 (triple-bolt kit). Construction: one-piece stainless steel for superior holding strength and corrosion resistance. Mounting: through-bolt with machine screws and sex nut fasteners (included). Finish options: Gray (standard) or Black, specified at order. Handing: non-handed (works on left-hand or right-hand swings without configuration). Application: out-swing doors only. Compatible door types: hollow metal, fiberglass, or aluminum. Door thickness: standard 1-3/4" to 2-1/4" (contact factory for thicker doors). Suitable for exterior applications and high-moisture or wet environments. Warranty: 10-year limited Detex manufacturer's warranty. SKU DX3 GRAY.
When to Specify the DX3 Hinge Bolts
Three patterns drive most orders. First, retail, restaurant, dispensary, and commercial back-of-house out-swing doors that have been targeted by break-ins or sit in higher-crime environments. Second, post-incident hardening where a building has experienced a hinge-side attack and the owner needs to upgrade physical security before insurance underwriting renewal. Third, new construction or renovation projects where the door schedule calls out hinge-side reinforcement for properties with high-value contents: jewelry stores, pharmacies, gun retailers, IT closets, server rooms with exterior egress. Also commonly specified on emergency exit out-swing doors where the hinge edge faces public alleyways or low-traffic exterior areas.
Compatible Door Types and Multipoint Conversion
The DX3 fits hollow metal, fiberglass, and aluminum doors at 1-3/4" to 2-1/4" thickness. Non-handed, so the same kit installs on either left-hand or right-hand swings. For Detex multipoint locks, the DX bolts can be added to convert standard panic hardware into 4-point, 5-point, or 6-point locking exit devices, providing additional locking engagement at the hinge edge alongside the existing top, bottom, and strike-side points. Existing Detex multipoint compatibility should be verified against the specific Detex device model before ordering. The DX3 also pairs with non-Detex out-swing exit hardware as a standalone hinge-side reinforcement; the bolts function passively without requiring integration into the lockset or panic device.
Where This Sits in the Detex Catalog
The DX3 is part of Detex Exit Device Accessories under the broader Detex Devices catalog, within Panic Exit Devices under Exit Hardware. American Locksets has stocked Detex commercial security hardware since 2001 with same-day shipping from authorized US distribution.
Trusted Since 2001
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