Value Collection 353-0516-01 Button Socket Cap Screw

Product Description

The VALUE COLLECTION 353-0516-01 is a button socket cap screw engineered for fastening applications that require a low-profile head and high tensile strength. The screw is made from alloy steel with a black oxide finish and features a Torx Plus IP40 drive socket. It measures 1 inch under the head on a 5/16-18 UNC coarse thread with a 3A thread fit class. Hardness is rated at 39 to 44 HRC, making this screw suitable for demanding mechanical assemblies. Licensed HVAC techs, machinists, millwrights, and industrial maintenance professionals install this fastener type across a wide range of equipment and structural applications.

This button head cap screw is used wherever a standard hex socket cap screw head profile is too tall for the surrounding clearance. Typical applications include machine guards, panel assemblies, enclosures, and fabricated frames. The black oxide coating provides moderate corrosion resistance and reduces light reflection in visible assemblies. The fully threaded shank and right-hand thread direction are standard for general mechanical use. This screw is sold individually but carries a minimum order quantity of 100 units per order.

Key Features

• Alloy steel construction with 39 to 44 HRC hardness rating for high-strength fastening
• Torx Plus IP40 drive socket reduces cam-out compared to standard hex drives
• Black oxide finish provides moderate corrosion resistance and low-glare appearance
• 5/16-18 UNC coarse thread with 3A fit class for precise engagement
• Low-profile button head design for clearance-restricted installations
• Conforms to ANSI/ASME B18.3 and ASTM F835 fastener standards

Compatibility

Designed as a standard 5/16-18 x 1 inch button socket cap screw suitable for use in any application requiring an ANSI/ASME B18.3 compliant fastener with a Torx Plus IP40 drive.

Installation Notes

Installation requires a Torx Plus IP40 driver or bit rated for the torque demands of the application. Power down and de-energize any equipment before fastener service on mechanical assemblies. Follow applicable torque specifications from the equipment manufacturer or applicable industry standards. Do not substitute a standard Torx bit for the Torx Plus socket, as fit and drive engagement will be compromised.