Value Collection KP44117 Hex Head Cap Screw 5/8-11 Grade 8

Product Description

The VALUE COLLECTION KP44117 is a 5/8-11 hex head cap screw designed for high-strength fastening applications across mechanical, structural, and industrial assembly work. Manufactured from Grade 8 steel with a zinc-plated finish, this screw delivers the tensile strength required for demanding bolted joints. The partially threaded shank conforms to ASTM A354 BD standards, making it suitable for connections where shank grip length matters. At 2.75 inches under the head and sized to UNC thread standards, it installs with standard hex tooling. Sold in a package of 25, it suits both job-site use and shop inventory replenishment.

This screw is used in heavy equipment assembly, structural steel fabrication, industrial machinery mounting, and general mechanical construction where Grade 8 tensile ratings are specified. The zinc plating provides a baseline level of corrosion resistance for indoor and sheltered outdoor environments. Tradespeople in millwright, pipefitting, ironworking, and general mechanical contracting applications routinely stock this size. The UNC thread form ensures broad compatibility with standard SAE-spec tapped holes and nuts.

Key Features

• Grade 8 steel construction meets high tensile and proof load requirements for demanding bolted connections
• Partially threaded shank provides a smooth grip section for shear-loaded joints
• ASTM A354 BD certified for verified mechanical property compliance
• Zinc-plated finish offers corrosion resistance in sheltered and indoor environments
• UNC 5/8-11 thread form works with standard hex nuts and tapped holes
• Package of 25 units supports both single-job use and bench-stock replenishment

Compatibility

Designed for use with standard 5/8-11 UNC tapped holes and hex nuts conforming to SAE and ASTM specifications for Grade 8 fastener systems.

Installation Notes

Installation should be performed by qualified mechanical tradespeople using calibrated torque tooling appropriate for Grade 8 fasteners. Always consult the applicable structural or equipment specification for required torque values before installation. Inspect mating threads for damage or contamination before assembly. Do not substitute a lower-grade fastener in any application specifying Grade 8 hardware.