Value Collection KP44115 Hex Cap Screw 5/8-11 Grade 8 25pk

Product Description

The VALUE COLLECTION KP44115 is a partially threaded hex head cap screw engineered to deliver high-strength clamping force in demanding mechanical and structural assemblies. Built to Grade 8 specification and certified to ASTM A354 BD, this fastener is manufactured from steel with a zinc-plated finish that provides a baseline level of corrosion resistance. The 5/8-11 UNC thread size and 2-1/4-inch length under head make it well suited for heavy-duty bolted joint applications. Sold in a package quantity of 25, this screw is a standard choice for maintenance crews, millwrights, and mechanical contractors who need reliable high-tensile fasteners on the job.

This cap screw is used in general industrial, agricultural, construction, and heavy equipment assembly applications where Grade 8 strength is required. The partial threading allows for a full shank bearing surface in the grip area, which is preferred in applications where fasteners pass through clearance holes in structural members. It is installed using standard hex tooling and is compatible with matching 5/8-11 UNC hex nuts and washers.

Key Features

• Grade 8 steel construction meeting ASTM A354 BD standard for high-strength performance
• Partially threaded design provides full shank bearing surface in the grip zone
• 5/8-11 UNC thread for broad compatibility with standard inch-series nuts and tapped holes
• Zinc-plated finish offers basic corrosion protection in dry and mildly humid environments
• 2-1/4-inch length under head suits medium-depth bolted joint configurations
• Sold in a 25-count package for efficient stocking and job-site use

Compatibility

Designed for use with standard 5/8-11 UNC hex nuts, flat washers, and lock washers in inch-series bolted assemblies across industrial, construction, and mechanical maintenance applications.

Installation Notes

Installation should be performed by a qualified mechanic or millwright familiar with proper bolted joint procedures. Always inspect threads and mating surfaces for damage or contamination before assembly. Apply appropriate thread lubricant or thread locker per the assembly specification, and torque to the value specified by the equipment or structure manufacturer for Grade 8 fasteners of this diameter. Do not reuse fasteners that have been overtorqued or show signs of thread damage.