Value Collection 721302BR Flat Socket Cap Screw 7/8-9

Product Description

The VALUE COLLECTION 721302BR is a flat socket cap screw designed for applications requiring a low-profile, flush-mount fastener. It features an 82-degree flat head with a 9/16-inch hex socket drive, allowing installation with a standard hex key or Allen wrench. The fastener is fully threaded with a 7/8-9 UNC thread form and measures 2.5 inches in overall length. Manufactured from alloy steel with a black oxide finish, it provides good mechanical strength and moderate corrosion resistance in indoor and light-duty industrial environments. Machinists, millwrights, and maintenance technicians commonly install this type of screw in countersunk holes where the head must sit flush with or below the mating surface.

This flat socket cap screw is suited for general mechanical assemblies, machine frames, fixtures, and structural connections where UNC inch-series fasteners are specified. The fully threaded shank allows engagement along the entire length of the fastener, making it effective in shorter blind holes or thin through-hole applications. The black oxide finish reduces light reflection and provides a clean appearance in finished assemblies. It conforms to ASME/ANSI B18.3 and ASTM F835 standards, making it appropriate for applications where those fastener standards are called out on engineering drawings.

Key Features

• 82-degree flat head profile seats flush in standard countersunk holes
• 9/16-inch hex socket drive for precise torque application with a hex key
• Fully threaded shank for maximum thread engagement across the fastener length
• Alloy steel construction delivers high tensile strength for structural and mechanical use
• Black oxide finish reduces glare and provides light surface protection
• Conforms to ASME/ANSI B18.3 and ASTM F835 fastener standards

Compatibility

Designed as a standard inch-series UNC flat socket cap screw for use in countersunk holes requiring a 7/8-9 thread, compatible with any application calling out ASME/ANSI B18.3 or ASTM F835 specifications.

Installation Notes

Installation requires a countersunk hole bored to match the 82-degree flat head angle for proper flush seating. Use a calibrated torque wrench with the appropriate 9/16-inch hex bit and follow the torque specifications listed in the relevant engineering drawing or fastener standard for the alloy steel grade. De-energize and lock out any machinery before servicing fasteners in live equipment per applicable safety codes. Avoid cross-threading by starting the fastener by hand before applying tool torque.