Value Collection 721260BR Flat Socket Cap Screw 5/8-11

Product Description

The VALUE COLLECTION 721260BR is a flat socket cap screw designed for applications requiring a flush or countersunk fastening profile. The 82-degree flat head seats fully into a countersunk hole, leaving a smooth surface when installed. Drive engagement is through a 3/8-inch hex socket for positive torque transfer. Manufactured from alloy steel with a black oxide finish, the fastener offers moderate corrosion resistance and reduced light reflection compared to bright finishes. The 5/8-11 UNC thread runs the full length of the 1-inch grip, meeting ASME/ANSI B18.3 and ASTM F835 dimensional and performance standards. Machinists, millwrights, and maintenance technicians install this fastener across a range of structural and mechanical assembly applications.

This screw fits countersunk hole patterns designed for 82-degree flat-head socket fasteners in the 5/8-11 UNC thread family. Typical applications include machine frames, jigs and fixtures, tooling plates, and general mechanical assemblies where a flush surface is required and a hex socket drive is preferred over an external hex head. The full-thread configuration is suited to through-hole installations and shorter engagement lengths where maximum thread contact is needed.

Key Features

• 82-degree flat head profile seats flush in standard countersunk holes
• 3/8-inch hex socket drive for positive torque without external head clearance
• Fully threaded 1-inch length maximizes thread engagement in through-hole applications
• Alloy steel construction provides high tensile strength for structural fastening
• Black oxide finish reduces surface reflectivity and provides light corrosion resistance
• Conforms to ASME/ANSI B18.3 and ASTM F835 fastener standards

Compatibility

Designed for use in countersunk applications requiring an 82-degree flat-head socket cap screw with 5/8-11 UNC threading. Compatible with standard countersunk hole patterns machined to ASME/ANSI B18.3 specifications.

Installation Notes

Installation is typically performed by machinists, millwrights, or maintenance technicians using a 3/8-inch hex key or socket driver. Ensure the mating countersunk hole is machined to the correct 82-degree angle before installing to achieve a flush seating surface. De-energize and lockout any equipment before replacing or installing fasteners in operating machinery. Do not use an impact driver at full torque without verifying the recommended torque value for the specific joint material and application.