Value Collection D39184 Hex Cap Screw 3/4-10 X 6 in Grade 8

Product Description

The VALUE COLLECTION D39184 is a partially threaded hex head cap screw designed for high-strength fastening applications. Built from Grade 8 steel with a zinc yellow dichromate finish, this fastener delivers superior tensile strength and corrosion resistance compared to lower-grade hardware. The 3/4-10 UNC thread pattern and 6-inch length under head make it well suited for heavy structural and mechanical assemblies where clamp load and shear resistance are critical. Manufactured to ASME B18.2.1 and SAE J429 standards, this screw is a reliable choice for maintenance, repair, and fabrication professionals working in industrial, commercial, and heavy-equipment environments.

This hex head cap screw is appropriate for use in structural connections, machinery frames, equipment mounting, and similar high-load applications. The partial threading allows for an unthreaded shank section beneath the head, which is preferred in applications requiring precise shear resistance or where the fastener passes through a clearance hole before engaging a tapped bore or nut. Machinists, millwrights, ironworkers, and general contractors routinely specify Grade 8 UNC fasteners like this for heavy-duty bolted joints.

Key Features

• Grade 8 steel construction provides high tensile and proof-load strength for demanding structural applications
• Zinc yellow dichromate finish offers corrosion resistance and is visually identifiable as a Grade 8 fastener
• Partially threaded shank supports accurate shear-load distribution in clearance-hole assemblies
• 3/4-10 UNC thread form ensures broad compatibility with standard nuts and tapped components
• Meets ASME B18.2.1 dimensional standards and SAE J429 mechanical property requirements

Compatibility

Designed as a standard 3/4-10 UNC Grade 8 hex head cap screw compatible with any application calling for an inch-series UNC fastener meeting ASME B18.2.1 and SAE J429 specifications.

Installation Notes

Installation should be performed by qualified tradespeople familiar with proper bolted joint procedures. Always confirm the mating threads, nut grade, and hole tolerances match the fastener specification before assembly. Apply torque values appropriate for Grade 8, 3/4-10 UNC fasteners per applicable industry references or engineering specifications — do not substitute torque values from lower-grade hardware tables. Inspect threads for damage before installation and replace any fastener showing deformation, corrosion pitting, or incomplete thread engagement.