Value Collection 701219PR Button Socket Cap Screw 1/2-20x3

Product Description

The VALUE COLLECTION 701219PR is a button socket cap screw designed for fastening applications that require a low-profile head with high clamping strength. It features a 1/2-20 UNF thread, a fully threaded shank 3 inches long under the head, and a 5/16-inch hex socket drive. The head height measures 0.265 inches, keeping the fastener profile minimal where clearance is limited. Manufactured from alloy steel with a black oxide finish, it delivers hardness in the 36-43 HRC range. Installers and machinists working with precision assemblies, machine guards, fixtures, and mechanical equipment will find this fastener appropriate for moderate to high-stress applications.

This button socket cap screw suits residential and industrial mechanical assemblies where a flush or near-flush head is preferred over a standard hex cap. Common applications include machine tool fixtures, equipment enclosures, conveyor frames, and general structural fastening where UNF thread engagement is specified. The black oxide finish provides moderate corrosion resistance in dry indoor environments. It conforms to ANSI/ASME B18.3 and ASTM F835 standards, making it a drop-in fit for projects that specify compliance with those fastener standards.

Key Features

• 1/2-20 UNF fully threaded shank, 3 inches under head
• Button head profile with 0.265-inch head height for low-clearance installations
• 5/16-inch hex socket drive accepts standard Allen-type drivers
• Alloy steel construction with 36-43 HRC hardness rating
• Black oxide coating for moderate corrosion resistance in dry environments
• Meets ANSI/ASME B18.3 and ASTM F835 fastener standards

Compatibility

Designed as an OEM-style or replacement fastener for mechanical assemblies specifying a 1/2-20 UNF button socket cap screw per ANSI/ASME B18.3 and ASTM F835.

Installation Notes

Installation is performed with a 5/16-inch hex key or Allen-type driver. Power down or de-energize any equipment before fastener service. Follow applicable ANSI or facility torque guidelines for 1/2-inch alloy steel fasteners. Right-hand thread direction applies; thread fit class is 3A.