Value Collection 721320BR Flat Socket Cap Screw 1-8x3 in

Product Description

The VALUE COLLECTION 721320BR is a flat socket cap screw designed for applications requiring a flush or countersunk fastener profile. With a 1-8 UNC thread and 3-inch overall length, it is fully threaded from tip to head. The 82-degree flat head seats flush in standard countersunk holes, and the 5/8-inch hex socket drive provides solid torque transfer with a hex key or socket tool. Constructed from alloy steel with a black oxide finish, this screw offers good mechanical strength and mild corrosion resistance in indoor and protected environments. It is commonly installed by machinists, millwrights, pipefitters, and general maintenance trades.

This fastener is suited for machine assemblies, structural fixtures, and equipment mounting applications where a low-profile or flush head is required. The UNC thread form is compatible with standard inch-series tapped holes. It meets ASME/ANSI B18.3 and ASTM F835 fastener standards, making it appropriate for use in industrial and mechanical assemblies that call for standardized flat socket head cap screws.

Key Features

• 82-degree flat head seats flush in standard countersunk holes for a low-profile installation
• 5/8-inch hex socket drive for high torque input with a standard hex key or socket wrench
• Fully threaded 1-8 UNC over 3-inch overall length for maximum thread engagement
• Alloy steel construction provides strong tensile and shear capacity
• Black oxide finish offers mild corrosion resistance and reduces light reflection
• Meets ASME/ANSI B18.3 and ASTM F835 fastener standards

Compatibility

Designed for use in standard inch-series countersunk holes with 1-8 UNC tapped threads. Compatible with any application requiring an ASME/ANSI B18.3 flat socket cap screw with an 82-degree head angle.

Installation Notes

Install using a properly sized 5/8-inch hex key or socket driver. Ensure the mating tapped hole is clean and free of debris before driving the fastener. Power down or de-energize any equipment before performing fastener installation or removal on live machinery. Follow applicable industry torque guidelines for alloy steel fasteners of this thread class when specified by the equipment manufacturer.