Value Collection 451109PR Hex Head Cap Screw 1/2-13 X 13 in

Product Description

The VALUE COLLECTION 451109PR is a Grade 8 steel hex head cap screw sized 1/2-13 x 13 inches, designed for heavy-duty fastening applications where high tensile strength is required. The partially threaded shank provides a strong clamping grip, and the bright uncoated finish is standard for environments where a coating is not specified or where secondary finishing will be applied. This fastener conforms to ASME B18.2.1 dimensional standards and uses a UNC (Unified National Coarse) thread form. It is driven with a 3/4-inch hex wrench or socket and is a common choice for structural, mechanical, and industrial assembly work performed by maintenance technicians, millwrights, and general contractors.

This fastener is suited for heavy structural bolting, machinery assembly, and industrial fabrication where Grade 8 rated hardware is specified. The 1/2-13 UNC thread is one of the most widely used coarse-thread sizes in inch-standard mechanical work. The 13-inch length under head accommodates thick stacked members or extended reach applications such as long-reach bolting through structural steel, wood-to-steel connections, or deep machine frames. Trade installers working under ASME or customer-specified hardware standards will find this fastener meets common Grade 8 dimensional and strength requirements.

Key Features

• Grade 8 steel construction for high tensile strength fastening applications
• Partially threaded shank provides positive clamping without thread engagement through the full grip length
• 1/2-13 UNC thread form for compatibility with standard inch-system nuts and tapped holes
• Conforms to ASME B18.2.1 dimensional standards
• Bright uncoated finish — suitable for secondary coating or use where coating is not required
• Driven with a 3/4-inch hex wrench or socket

Compatibility

Designed as an OEM-style or replacement fastener for any application specifying a 1/2-13 UNC x 13-inch Grade 8 hex head cap screw conforming to ASME B18.2.1.

Installation Notes

Installation should be performed by qualified mechanical or structural tradespeople using a properly rated 3/4-inch wrench or impact socket. Always verify that mating nuts or tapped holes are rated for Grade 8 hardware and use the correct thread engagement depth per applicable structural or machinery standards. Do not mix Grade 8 fasteners with lower-grade nuts unless specifically permitted by the design specification. Follow applicable ASME, AISC, or job-specific torque specifications as provided by the engineer of record or equipment manufacturer — no torque value is supplied with this part.