Value Collection 36854 Flat Socket Cap Screw 1/2-13 X 1 in 10pk

Product Description

The VALUE COLLECTION 36854 is a flat socket cap screw designed for applications requiring a flush or countersunk fastener profile. Manufactured from alloy steel with a black oxide finish, this screw offers good corrosion resistance in moderate environments and added surface hardness. It features an 82-degree flat head and a 5/16-inch hex socket drive. The 1/2-13 UNC thread designation indicates a coarse-thread series, and the fastener is fully threaded along its 1-inch overall length. This screw is installed by maintenance technicians, millwrights, and mechanical contractors working in industrial or commercial equipment assembly.

This fastener fits countersunk hole applications where the screw head must sit flush with or below the mating surface. Common uses include machinery frames, fixture tooling, and structural assemblies where a protruding head would interfere with moving parts or mating components. The fully threaded 1-inch length maximizes thread engagement in thinner materials. It conforms to ASME/ANSI B18.3 and ASTM F835 standards, making it suitable for general industrial fastening applications where dimensional and mechanical consistency are required. Sold in a package quantity of 10.

Key Features

• 82-degree flat head for flush or countersunk installations
• 5/16-inch hex socket drive for standard Allen key or hex bit installation
• Fully threaded 1-inch overall length for maximum thread engagement
• Alloy steel construction for high tensile strength in industrial use
• Black oxide finish provides mild corrosion resistance and reduces light reflection
• Meets ASME/ANSI B18.3 and ASTM F835 dimensional and mechanical standards

Compatibility

Designed as a standard inch-series flat socket cap screw for use in any 1/2-13 UNC tapped hole requiring an 82-degree countersunk head profile per ASME/ANSI B18.3.

Installation Notes

Installation requires a properly machined 82-degree countersunk hole sized for a 1/2-inch fastener. Use a calibrated torque wrench and the appropriate 5/16-inch hex key or socket bit to avoid rounding the drive recess. De-energize and lock out any equipment before fastener replacement per applicable OSHA lockout/tagout procedures. Do not substitute this screw in applications requiring a different countersink angle, as improper head seating can compromise clamp load and surface finish.