Holo-krome 64028 Button Socket Cap Screw 10-24 3/8 in

Product Description

The HOLO-KROME 64028 is a button socket cap screw designed for applications requiring a low-profile fastener with high tensile strength. Sized at 10-24 UNC with a 3/8-inch length under head, it features a hex socket drive accepting a 1/8-inch hex key. Constructed from alloy steel with a black oxide finish, this fastener meets ANSI/ASME B18.3 and ASTM F835 standards and carries a thread fit class of 3A. Hardness is rated at 38 HRC. Fully threaded with right-hand thread direction, it is suited for precision mechanical assemblies across industrial and trade applications.

This button cap screw is used in applications where a flush or near-flush fastener profile is required and standard hex head clearance is limited. The low-profile button head reduces snagging risk in moving assemblies. Common installation scenarios include equipment frames, panel mounts, and mechanical enclosures in HVAC, electrical, and general industrial environments. The black oxide finish provides mild corrosion resistance and reduced light reflection. Sold individually with a minimum order quantity of 100 pieces.

Key Features

• Button head profile with 0.361-inch head diameter and 0.101-inch head height for low-profile installations
• 1/8-inch hex socket drive for precise torque application with a standard Allen key
• Alloy steel construction rated at 38 HRC hardness
• Black oxide finish for mild corrosion resistance and reduced glare
• Fully threaded 10-24 UNC right-hand thread at 3/8-inch length under head
• Meets ANSI/ASME B18.3 and ASTM F835 fastener standards with 3A thread fit class

Compatibility

Designed as an OEM-style replacement or standard-specification fastener for assemblies requiring a 10-24 UNC button socket cap screw per ANSI/ASME B18.3 and ASTM F835.

Installation Notes

Installation requires a 1/8-inch hex key or Allen driver; use of the correct driver size prevents socket rounding. Power down or de-energize any equipment before fastener service on electrical or HVAC assemblies. Follow applicable torque guidelines for alloy steel fasteners in the assembly specification. Avoid over-torquing, which can compromise the button head drive interface.