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The DORMAKABA COMMERCIAL HDWE 8Q00097-689 is a set of QDC sex nuts with an aluminum finish, designed for use in commercial door hardware assemblies. Sex nuts, also called mating screws or sex bolts, are two-part fasteners consisting of a barrel and a bolt that thread together to clamp components between them. These fasteners are a standard element in mounting door closers, exit devices, and other commercial door hardware to door faces and frames. Installation is typically performed by a licensed locksmith or commercial door hardware technician.
These sex nuts are suited for commercial door hardware applications where a secure, through-bolt fastening method is required. The aluminum finish blends with door hardware components in aluminum or similar neutral-tone finishes. They are sold as individual units and are appropriate for new installations and replacement applications in commercial settings such as offices, schools, healthcare facilities, and institutional buildings.
Designed as an OEM-style replacement fastener for commercial door hardware assemblies requiring QDC sex nut fasteners in an aluminum finish.
Installation is performed by a qualified locksmith or commercial door hardware technician. Before servicing any door hardware, ensure the door is secured in an open or safe position to prevent unintended closure during work. Use appropriately sized hand tools to thread the barrel and bolt together without overtightening, which can damage the fastener or substrate. Follow local building codes and hardware manufacturer guidelines for commercial door hardware installations.
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