Value Collection KP44139 Hex Cap Screw 3/4-10 X 4 in Grade 8

Product Description

The VALUE COLLECTION KP44139 is a 3/4-10 x 4-inch hex head cap screw manufactured from Grade 8 steel with a zinc-plated finish. Designed for high-strength fastening applications, this screw features a partially threaded shank and conforms to ASTM A354 BD standards, making it suitable for structural, mechanical, and heavy equipment assemblies. The Unified National Coarse (UNC) thread pattern provides reliable engagement in standard tapped holes and nuts. Maintenance technicians, millwrights, and mechanical contractors working on industrial or commercial equipment installations rely on this grade of fastener where tensile strength and corrosion resistance are both required.

This hex head cap screw is suited for general-purpose industrial fastening where Grade 8 strength is specified. Typical applications include machinery mounting, structural steel connections, heavy-duty brackets, and equipment frames in commercial and industrial settings. The zinc-plated finish provides baseline corrosion protection for indoor and light-exposure environments. Sold in packages of 25, this SKU is appropriate for service stock, maintenance shops, and contractors who need quantity on hand for ongoing mechanical work.

Key Features

• Grade 8 steel construction meets ASTM A354 BD for high tensile strength requirements
• 3/4-10 UNC thread size for compatibility with standard coarse-thread nuts and tapped holes
• Partially threaded shank provides clamping grip without full thread engagement along the body
• Zinc-plated finish offers corrosion resistance for general indoor and light-duty outdoor use
• 4-inch length under head suits deep-reach fastening in thick material stacks
• Package quantity of 25 supports shop stock and multi-point assembly work

Compatibility

Designed as a standard 3/4-10 UNC Grade 8 hex head cap screw for use with any 3/4-10 coarse-thread nut or tapped hole conforming to UNC thread standards in industrial, mechanical, and structural fastening applications.

Installation Notes

Installation should be performed by a qualified mechanic or millwright familiar with fastener torque requirements for Grade 8 hardware. Always de-energize and lock out equipment before fastening or removing bolts from mechanical assemblies. Use a calibrated torque wrench and apply torque values specified by the equipment manufacturer or applicable structural engineering specifications — do not estimate torque by feel on Grade 8 fasteners. Inspect threads for damage before installation and replace any fastener showing deformation or corrosion to maintain joint integrity.