The Von Duprin 010062 is the OEM Security Screw Hex Key, 3/16 inch, documented in the Von Duprin Price Book (Effective October 7, 2024). It drives number 10 hex socket security screws used at mid-range fastener positions in Von Duprin exit device service applications. The 3/16 inch size sits between the standard dogging key (010059, 5/32 inch for number 8 screws) and the large security key (010061, 7/32 inch for number 12 screws), serving the intermediate number 10 hex socket positions in the Von Duprin exit device assembly. Available (3-4 weeks).

Where Number 10 Hex Socket Security Screws Appear in Von Duprin Exit Devices

Von Duprin exit devices use hex socket fasteners at positions across the full assembly, from the center case mounting hardware through to outside trim attachment points. The screw size at each position is determined by the holding strength required and the physical space available for the fastener head. Number 10 hex socket screws sit above the number 8 screws used for standard trim mounting and below the larger number 12 fasteners used at heavy structural positions.

Per ANSI B18.3, the standard hex key size for number 10 socket head cap screws is 3/16 inch, which is exactly the drive size of the 010062. At number 10 security screw positions, a technician cannot use the 5/32 inch dogging key (too small, would spin without engaging) or the 7/32 inch large security key (too large, would not seat in the socket). Only the 010062 provides correct engagement for these specific fastener positions.

The "security screw" designation confirms these number 10 fasteners are used at anti-tamper positions in the outside trim or cover assembly, not at routine service points. The hex socket drive on a number 10 screw already prevents removal with a Phillips or flat screwdriver. Using a specialized 3/16 inch hex key that is not part of standard field service kits adds a second layer of access control, ensuring that only authorized technicians with the correct Von Duprin OEM tool can remove or reinstall fasteners at these positions.

The Von Duprin Security Hex Key Family: 010062 in Context

The Von Duprin Price Book lists four hex keys covering the full range of security and service fastener positions across the exit device catalog. Each key is specific to a fastener size and cannot substitute for another within the family.

010059 (5/32 inch): Standard service key for hex dogging bolt operation and number 8 hex socket trim screws. Used in routine installation and service on every Von Duprin device with hex dogging.

010060 (1/8 inch): Small security screw key for number 4 and number 6 hex socket anti-tamper screws at trim rose mounting and cylinder guard positions in high-security outside trim configurations.

010062 (3/16 inch, this product): Mid-range security screw key for number 10 hex socket fasteners at intermediate security positions in the exit device assembly. Neither the smallest nor the largest in the family.

010061 (7/32 inch): Large security screw key for number 12 hex socket fasteners at sex bolt through-bolt positions and structural cover plate locations requiring the greatest holding strength.

Stocking all four keys is the correct approach for facilities or service contractors maintaining Von Duprin hardware across multiple device configurations. Using the wrong key at any position risks rounding the hex socket head, which makes the fastener permanently difficult to remove without destructive methods.

Von Duprin 010062 Across the Exit Device Catalog

Number 10 security screw positions appear across the major Von Duprin exit device series. The 22 Series, 33A and 35A Series, 88 Series, and 98 and 99 Series all incorporate positions where specific security fasteners at the number 10 hex socket size are used in outside trim and device body assemblies, particularly in configurations specified for correctional, institutional, or high-security commercial applications where hardware tamper resistance is a project requirement.

The 010062 is the OEM Von Duprin tool for these positions. It is built to the length required for correct engagement with security screw positions that may be recessed within the trim or device body, providing the torque leverage needed to drive the fastener to the correct installation depth without overtightening or stripping the socket head.

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