Value Collection C703018 Hex Head Cap Screw 1/4-20 Grade 8

Product Description

The VALUE COLLECTION C703018 is a Grade 8 steel hex head cap screw designed for high-strength fastening applications. Sized at 1/4-20 thread by 2-1/4 inches under the head, this fastener uses a Unified National Coarse (UNC) thread form and features partial threading along the shank. The uncoated finish leaves the base steel exposed, making it suitable for applications where a coating is applied post-assembly or where coating is not required. Manufactured to ASME B18.2.1 standards, this screw meets established dimensional and performance requirements for inch-series hex head cap screws. Sold in a package quantity of 50.

Grade 8 hex head cap screws are used across a wide range of industrial, mechanical, and structural fastening applications where higher tensile and proof load ratings are required compared to lower-grade fasteners. Common installation environments include machinery assemblies, brackets, flanges, and structural connections in both commercial and industrial settings. The partial threading on this screw provides a smooth shank section that is advantageous in applications requiring precise shear loading or close-tolerance hole fits. Installers working in HVAC, plumbing, electrical, and general mechanical trades commonly use Grade 8 fasteners when manufacturer specifications call for high-strength hardware.

Key Features

• Grade 8 steel construction meets high tensile and proof load requirements for demanding fastening applications
• 1/4-20 UNC thread size with 2-1/4 inch length under head
• Partially threaded shank for shear-load and close-tolerance applications
• Conforms to ASME B18.2.1 dimensional standards for inch-series hex head cap screws
• Uncoated finish suitable for post-assembly coating or bare-steel service
• Packaged in quantities of 50 to support job-site and shop inventory needs

Compatibility

Designed as a standard inch-series hex head cap screw for use in any application requiring a 1/4-20 UNC partially threaded fastener conforming to ASME B18.2.1.

Installation Notes

Installation requires a standard hex wrench or socket driver sized for a 1/4-inch hex head cap screw. Verify that the mating thread is 1/4-20 UNC and that hole depth accommodates the 2-1/4 inch length under head before installation. Follow applicable torque specifications provided by the equipment manufacturer or relevant industry standards for Grade 8 fasteners. Do not substitute a lower-grade fastener in applications that specify Grade 8 hardware.