Value Collection A997072 Button Cap Screw 3/8-16 3in 10pk

Product Description

The VALUE COLLECTION A997072 is a fully threaded button socket cap screw designed for mechanical and structural fastening applications requiring a low-profile head and high tensile strength. Sized at 3/8-16 UNC with a 3-inch length under head, this fastener is driven by a 7/32-inch hex socket. The alloy steel construction is finished in black oxide, which provides mild corrosion resistance and reduces light reflection. The 3A thread fit class ensures precise engagement. Hardness is rated at 36 to 43 HRC, meeting ANSI/ASME B18.3 and ASTM F835 standards. Each package contains 10 screws.

This button socket cap screw is suited for machine assembly, equipment fabrication, and fixture building where a rounded, flush-style head is preferred over a standard hex head or flat-head fastener. The low-profile button head reduces snag points in tight clearance areas. It is commonly installed in metalworking, industrial equipment, and general mechanical assemblies by machinists, millwrights, fabricators, and maintenance technicians.

Key Features

• Fully threaded 3/8-16 UNC right-hand thread for standard nut and tapped-hole compatibility
• 3-inch length under head provides ample grip range for thick material stacks
• 7/32-inch hex socket drive for use with standard Allen wrenches and hex bit drivers
• Alloy steel construction rated 36 to 43 HRC hardness
• Black oxide finish for mild corrosion resistance and low-glare appearance
• Meets ANSI/ASME B18.3 and ASTM F835 fastener standards

Compatibility

Designed as a standard UNC 3/8-16 button socket cap screw compatible with any tapped hole or nut conforming to 3/8-16 UNC thread specifications.

Installation Notes

Installation requires a 7/32-inch hex key or Allen bit driver. Always verify the tapped hole or mating nut matches the 3/8-16 UNC thread standard before driving. Use a calibrated torque wrench appropriate to the joint material and application; do not rely on impact drivers for final torque on precision assemblies. Follow applicable ANSI/ASME fastener torque guidelines for alloy steel cap screws in the relevant diameter and grade class.