Value Collection D39173 Hex Head Cap Screw 3/4-10 X 2-1/4 in Grade 8

Product Description

The VALUE COLLECTION D39173 is a fully threaded hex head cap screw designed for high-strength fastening applications in mechanical, structural, and industrial assembly work. Manufactured from Grade 8 steel with a zinc yellow dichromate finish, this fastener delivers enhanced corrosion resistance alongside the elevated tensile strength characteristic of Grade 8 hardware. The 3/4-10 UNC thread profile and 2-1/4-inch length under head make it well suited for heavy-duty bolted connections where clamping force and thread engagement are critical. Installation is handled by mechanics, millwrights, maintenance technicians, and trade professionals working across a wide range of equipment and structural applications.

This cap screw is used in industrial machinery assembly, structural steel connections, agricultural equipment, and general mechanical maintenance where high-strength inch-series fasteners are required. The fully threaded shank provides maximum thread engagement throughout the grip length, which is advantageous in applications requiring consistent clamping across thinner material stacks. The zinc yellow dichromate coating provides a measure of rust resistance suitable for indoor and moderately protected outdoor environments. This part is sold individually with a minimum order quantity of 10 pieces.

Key Features

• Grade 8 steel construction for high tensile and proof load strength
• Fully threaded shank maximizes thread engagement across the full grip length
• 3/4-10 UNC thread series — standard inch coarse thread for broad tool and hardware compatibility
• Zinc yellow dichromate finish provides corrosion resistance in protected environments
• Meets ASME B18.2.1 dimensional standard for hex head cap screws
• 2-1/4-inch length under head suits medium-depth structural and mechanical fastening applications

Compatibility

Designed as an OEM-style replacement or stock fastener for any application requiring a 3/4-10 UNC fully threaded hex head cap screw to ASME B18.2.1 specifications in Grade 8 steel.

Installation Notes

Installation is typically performed by mechanics, millwrights, or maintenance technicians using a standard 1-1/8-inch hex wrench or impact socket. Always torque Grade 8 fasteners to the value specified in the equipment service documentation or applicable engineering standard for the joint design. Ensure mating threads and seating surfaces are clean and free of debris before assembly. Do not reuse fasteners that show signs of thread damage, galling, or deformation.