The Von Duprin 010059 is the OEM 5/32 inch Hex Wrench for Von Duprin exit device hex dogging and #8-1/4 hex socket trim screw installation, documented in the Von Duprin Price Book (Effective October 7, 2024). It is sized for the two most common hex socket fastener operations performed during Von Duprin exit device installation and service: driving the hex dogging bolt in the device center case, and driving the #8 hex socket machine screws that secure outside trim components to the device. In stock.

The Von Duprin version of the 5/32 inch hex wrench is deliberately longer than generic Allen wrenches available from hardware suppliers, per Von Duprin's own product documentation. The additional length is required to reach the dogging bolt position inside the device body where standard-length hex keys cannot engage without interference from the device housing.

Von Duprin Exit Device Hex Dogging: What the 010059 Does

Hex dogging is the method used to hold the pushbar of a Von Duprin exit device in the depressed position, allowing free passage through the door without requiring the pushbar to be pressed on each entry during business hours. The dogging bolt sits recessed inside the device center case at a position accessible through a hex key hole in the pushpad or cover. Inserting the 5/32 inch hex key, turning it clockwise, and engaging the dogging bolt locks the pushbar in the open position. Reversing the direction releases the dogging and restores the device to its secured, latch-extended state.

The 5/32 inch size is the standard hex dogging specification across the full Von Duprin exit device catalog. The 22, 33A, 35A, 88, 98, and 99 Series all use the same 5/32 inch hex dogging bolt, confirmed in the Von Duprin installation instructions for each series. The 010059 is the Von Duprin OEM tool for this operation, built to the correct length for unobstructed access to the dogging bolt in all these device types.

Von Duprin 010059: The #8-1/4 Hex Socket Trim Screw Application

The second application for the 010059 is driving the #8-1/4 inch hex socket machine screws used in Von Duprin exit device trim assemblies. Von Duprin outside trim components — including lever trim hubs, knob escutcheons, and trim rose assemblies — are secured to the exit device through-bolts using #8 hex socket machine screws. The 5/32 inch hex is the correct drive size for the hex socket head on these #8 screws per standard ANSI socket head fastener geometry.

During trim installation on 98/99 Series and 88 Series devices, the trim screws are noted in Von Duprin's installation instructions as being treated with thread sealant at the factory, requiring firm torque on installation and careful engagement to avoid stripping. A properly sized, full-length hex key such as the 010059 provides the torque and engagement needed for this operation. A short or poorly fitting generic Allen key risks rounding the hex socket and damaging the screw head, which complicates future trim removal or replacement.

Von Duprin Hex Wrench: Compatible Exit Device Series

The 010059 covers hex dogging and trim screw operations across the following Von Duprin 98 and 99 Series and related exit device families: the 22 Series (narrow stile rim), 33A and 35A Series (standard commercial rim), 88 Series (heavy duty rim and vertical rod), 98 Series (wide stile heavy duty rim, surface vertical rod, concealed vertical rod, and mortise configurations), and 99 Series (heavy duty equivalent). The same 5/32 inch hex size applies to hex dogging bolts and #8 trim screws across all these series, making the 010059 a single tool for the full Von Duprin catalog.

Facilities that maintain Von Duprin exit devices across multiple device types benefit from keeping the 010059 on hand as the standard field service tool. Generic 5/32 inch Allen keys from hardware stores are typically too short to reach the dogging bolt in the device body, which means the Von Duprin-specific 010059 is the correct tool for the dogging operation regardless of which device series is being serviced.

SecurityParts stocks OEM Von Duprin exit device tools and service parts. Free shipping on orders over $300.