Value Collection 211297PR Flat Socket Cap Screw 1/2-13

Product Description

The VALUE COLLECTION 211297PR is a flat socket cap screw designed for applications where a flush or countersunk fastener is required. The 82-degree flat head seats flush with the mating surface, eliminating protrusions that could interfere with adjacent components. Driven by a 5/16-inch hex socket, it delivers reliable torque transfer without external wrench flats. Manufactured from alloy steel with a black oxide finish, this fastener offers solid mechanical strength and basic corrosion resistance for general industrial and mechanical assembly work. Fully threaded along its 1-3/4-inch overall length on a 1/2-13 UNC thread form, it is suited for through-hole and tapped-hole installations.

This screw is used in machine assembly, tooling fixtures, structural brackets, and general fabrication work where a low-profile head is needed. The 1/2-13 UNC thread is a common coarse-thread standard found throughout industrial equipment, making this screw a practical fit for a wide range of mechanical maintenance and manufacturing applications. Machinists, millwrights, and maintenance technicians are the typical installers.

Key Features

• 82-degree flat head seats flush in countersunk holes, eliminating surface protrusions
• 5/16-inch hex socket drive for positive torque engagement with standard Allen keys or hex bit drivers
• Fully threaded 1-3/4-inch overall length maximizes thread engagement in both through-hole and blind applications
• Alloy steel construction provides high tensile strength for demanding mechanical assemblies
• Black oxide finish offers mild corrosion resistance and reduces light reflection in precision applications
• Meets ASME/ANSI B18.3 and ASTM F835 fastener standards

Compatibility

Designed for use in any application requiring a 1/2-13 UNC fully threaded flat socket cap screw with an 82-degree countersunk head. Fits standard countersunk holes bored to ASME/ANSI B18.3 specifications.

Installation Notes

Install using a 5/16-inch hex key or hex socket bit driver. Ensure the mating countersink is machined to the correct 82-degree angle and diameter before installation to achieve a proper flush seating surface. Apply appropriate thread lubricant or threadlocker per assembly requirements. Follow applicable industry torque guidelines for 1/2-13 alloy steel fasteners and verify the joint design before final tightening.