Value Collection 701207PR Button Socket Cap Screw 1/2-13x4

Product Description

The VALUE COLLECTION 701207PR is a button socket cap screw designed for bolted assemblies where a low-profile head and high clamping strength are both required. Sized at 1/2-13 UNC with a 4-inch length under head, this fastener is fully threaded and driven by a 5/16-inch hex socket key. It is manufactured from alloy steel with a black oxide coating that provides mild corrosion resistance and reduces surface reflectivity. Hardness is rated at 36-43 HRC, meeting ANSI/ASME B18.3 and ASTM F835 standards. Machinists, millwrights, equipment assemblers, and maintenance technicians install this type of fastener in structural, mechanical, and machine-assembly applications.

This screw is suited for use in general industrial and mechanical assembly where a button-head profile is needed to keep fastener heads flush or recessed in clearance-limited installations. The black oxide finish makes it a common choice in applications where surface appearance or light corrosion protection matters. The right-hand, Class 3A thread fit ensures consistent engagement with standard UNC tapped holes. It is appropriate for both original equipment builds and maintenance or replacement work on industrial machinery and fabricated assemblies.

Key Features

• 1/2-13 UNC fully threaded, 4-inch length under head
• Button head profile for low-profile, clearance-sensitive installations
• 5/16-inch hex socket drive for standard Allen key or socket-bit tooling
• Alloy steel construction with 36-43 HRC hardness range
• Black oxide coating for mild corrosion resistance and reduced surface glare
• Meets ANSI/ASME B18.3 and ASTM F835 fastener standards
• Right-hand thread, Class 3A fit for consistent engagement in standard UNC tapped holes

Compatibility

Designed as a standard UNC replacement or new-build fastener for any assembly requiring a 1/2-13 button socket cap screw per ANSI/ASME B18.3 and ASTM F835 specifications.

Installation Notes

Installation is performed with a 5/16-inch hex key or socket bit driver. Always ensure the mating tapped hole is clean and free of debris before threading the fastener. Follow applicable engineering or equipment specifications for target clamp load; do not exceed the designed torque range for the joint material. Black oxide fasteners are not rated for outdoor or high-humidity environments without additional corrosion protection such as a compatible lubricant or sealant.