Value Collection KP45023 Hex Cap Screw 5/16-24 Grade 8 Zinc 100pk

Product Description

The VALUE COLLECTION KP45023 is a 5/16-24 UNF hex head cap screw manufactured from Grade 8 steel with a zinc-plated finish. It measures 1.5 inches under the head and features partial threading along the shank. Grade 8 steel delivers high tensile and proof load strength, making it appropriate for structural fastener applications that see significant clamping force. The zinc coating provides a baseline level of corrosion resistance in standard indoor and sheltered outdoor environments. This fastener conforms to ASTM A354 BD, the governing specification for alloy steel bolts and studs at this strength grade.

This screw is suited for mechanical assembly, equipment fabrication, and maintenance work across HVAC equipment, plumbing system supports, electrical enclosure hardware, and general industrial applications. Partial threading is standard where the unthreaded shank must pass through a clearance hole before engaging a tapped bore or nut, which is common in flanged connections and structural joint assemblies. The 100-piece package quantity makes this item appropriate for production use or stocking a service van or shop inventory.

Key Features

• 5/16-24 UNF thread specification for fine-thread engagement and higher thread stripping resistance than coarse-thread equivalents
• Grade 8 steel construction meets ASTM A354 BD for high-strength fastener applications
• Zinc-plated finish provides corrosion resistance in standard service environments
• Partially threaded shank allows passage through clearance holes before thread engagement
• 1.5-inch length under head suits medium-depth clamping applications
• Sold in a 100-piece package for shop stocking and production use

Compatibility

Designed as a standard inch-series UNF hex head cap screw compatible with any 5/16-24 tapped hole or matching hex nut conforming to ASME B18.2.1 dimensional standards.

Installation Notes

Installation is performed with a standard hex wrench, socket, or combination wrench sized to the 5/16-inch hex head. Always verify thread engagement and hole cleanliness before driving the fastener. Power down or de-energize any equipment before accessing fastener points on live electrical or HVAC assemblies. Do not substitute Grade 8 fasteners with lower-grade hardware in structural or high-load joint positions without engineering review.