Holo-krome 65032 Button Socket Cap Screw 5/16-24 3/4in

Product Description

The HOLO-KROME 65032 is a 5/16-24 button socket cap screw designed for applications requiring a low-profile fastener with high tensile strength. Manufactured from alloy steel with a black oxide finish, it meets ANSI/ASME B18.3 and ASTM F835 standards. The hex socket drive accepts a 3/16-inch hex key for installation and removal. At 38 HRC hardness and thread fit class 3A, this screw delivers consistent clamping force in both structural and mechanical assemblies. The fully threaded 3/4-inch length under head suits a range of material thicknesses. Right-hand thread direction follows standard UNF convention.

This fastener is suited for use in mechanical assemblies, machine frames, fixtures, and tooling applications where a flush or low-profile head is required. The button head profile reduces snag points and distributes load across a wider bearing surface compared to a standard socket head cap screw. Maintenance technicians, machine builders, and industrial assemblers commonly use this screw in equipment where clearance above the fastener head is limited. The black oxide finish provides mild corrosion resistance and reduces surface reflectivity in exposed assemblies.

Key Features

• Button head profile provides low-profile clamping with a wide bearing surface
• Alloy steel construction with 38 HRC hardness for high-strength applications
• Black oxide finish for mild corrosion resistance and reduced reflectivity
• Fully threaded 3/4-inch length under head accommodates varied material thicknesses
• 3/16-inch hex socket drive for standard hex key installation
• Meets ANSI/ASME B18.3 and ASTM F835 fastener standards

Compatibility

Designed as a standard 5/16-24 UNF button socket cap screw for use in any assembly requiring an ANSI/ASME B18.3-compliant fastener with a 3A thread fit class and right-hand thread direction.

Installation Notes

Installation requires a 3/16-inch hex key or hex bit driver. Ensure mating threads are clean and free of debris before driving. Follow applicable torque specifications from your engineering or project documentation for 5/16-24 alloy steel fasteners. Do not exceed the rated hardness limitations when installing into softer base materials.