Value Collection A997144 Hex Socket Cap Screw 1/2-13 Unc

Product Description

The VALUE COLLECTION A997144 is a hex socket cap screw designed for high-strength fastening applications in industrial, mechanical, and structural assemblies. Sized at 1/2-13 UNC thread with a 4.25-inch length under head, this fastener is partially threaded and driven by a 3/8-inch hex key. Constructed from alloy steel with a black oxide finish coating, it delivers reliable clamping force and moderate corrosion resistance. Manufactured to ASME/ANSI B18.3 and ASTM A574 standards, this screw meets the mechanical property requirements expected in precision and load-bearing fastener applications. Each package contains 10 screws.

This screw is suited for use in machine assembly, tooling fixtures, equipment maintenance, and general industrial fastening where a recessed hex drive and high tensile alloy steel construction are required. The 1/2-13 UNC coarse thread is a widely used size in North American industrial and OEM equipment. The partial thread configuration provides a stronger grip in thick materials and is preferred in through-bolt and clamp-load applications. Installers across maintenance, machining, and fabrication trades commonly use this fastener type.

Key Features

• 1/2-13 UNC coarse thread for compatibility with standard North American hardware
• 4.25-inch length under head accommodates thicker material stacks
• Partially threaded shank for improved shear strength and clamping performance
• 3/8-inch hex socket drive for use with standard Allen keys and hex bit drivers
• Alloy steel construction meets ASTM A574 high-strength fastener requirements
• Black oxide finish provides mild corrosion resistance and reduces light reflection

Compatibility

Designed as a standard 1/2-13 UNC hex socket cap screw suitable for use in machinery, fixtures, and equipment that accept ASME/ANSI B18.3 socket head cap screws of this thread size and length.

Installation Notes

Installation should be performed by a qualified mechanic, millwright, or maintenance technician using the appropriate 3/8-inch hex key or socket head driver. De-energize and lock out all affected equipment before fastener installation or removal per applicable OSHA lockout/tagout procedures. Apply thread lubricant or thread locker only as specified by the equipment manufacturer. Do not substitute this fastener in applications requiring a different thread class, grade, or plating specification without engineering review.