Value Collection 701009PR Button Socket Cap Screw 1-72

Product Description

The VALUE COLLECTION 701009PR is a button socket cap screw designed for precision fastening applications where a low-profile head and flush appearance are required. The screw features a hex socket drive and a button-style head, providing a smooth, rounded top surface. It is manufactured from alloy steel with a black oxide finish for corrosion resistance and reduced light reflection. The thread is a 1-72 UNF right-hand thread with a 3A fit class, offering a close tolerance engagement suitable for tight assemblies. The overall length under the head is 5/8 inches. This fastener is fully threaded and conforms to ANSI/ASME B18.3 and ASTM F835 standards. Machinists, maintenance technicians, and mechanical assemblers commonly install this type of fastener.

This screw is suited for light-duty mechanical assemblies, instrument panels, electronics enclosures, and precision equipment where a low-profile head is preferred over a standard socket cap profile. The fine 1-72 UNF thread pitch provides strong clamping force in small-diameter applications and is commonly found in tight-clearance assemblies requiring secure, vibration-resistant fastening. It is appropriate for both original equipment manufacturing and field repair work across industrial and commercial maintenance settings.

Key Features

• Button head profile provides a low-clearance, smooth surface finish on assembled components
• Hex socket drive accepts standard hex keys for installation in confined spaces
• 1-72 UNF right-hand thread with 3A fit class for close-tolerance engagement
• Alloy steel construction with hardness rating of 36-43 HRC for reliable clamping strength
• Black oxide coating for mild corrosion resistance and low-glare appearance
• Meets ANSI/ASME B18.3 and ASTM F835 fastener standards

Compatibility

Designed as an OEM-style replacement or standard-specification fastener for mechanical assemblies requiring a 1-72 UNF button socket cap screw conforming to ANSI/ASME B18.3 and ASTM F835.

Installation Notes

Installation is performed with a hex key or hex socket driver sized to fit the socket head. Always verify thread engagement and clearance before final tightening. Power down or de-energize any equipment before accessing fastener locations on electrical or mechanical assemblies. Do not overtighten small-diameter screws, as alloy fasteners at this thread size can be susceptible to shear if torque is applied beyond the design limit of the mating material.