Value Collection D30145-41/2 Hex Cap Screw 5/8-11x4.5in Grade 5

Product Description

The Value Collection D30145-41/2 is a partially threaded hex head cap screw sized 5/8-11 x 4.5 inches, manufactured from Grade 5 steel with a zinc-plated finish. It conforms to ASME B18.2.1 dimensional standards and uses a Unified National Coarse (UNC) thread form. The zinc plating provides basic corrosion resistance for general industrial and mechanical assembly applications. This fastener is suited for maintenance technicians, millwrights, and tradespeople who need a reliable, standards-compliant hex cap screw for structural and mechanical connections.

This hex head cap screw is appropriate for use in general mechanical assemblies, equipment maintenance, and structural fastening applications where a 5/8-11 UNC thread pattern and partial threading are specified. Partial threading allows the unthreaded shank to bear shear loads and maintain precise joint alignment, making it a common choice in flanged connections, machinery mounts, and similar fixed assemblies.

Key Features

• 5/8-11 UNC thread size with 4.5 inches of length under head
• Partially threaded shank for improved shear load capacity and joint alignment
• Grade 5 steel construction meets medium-strength fastener requirements
• Zinc-plated finish provides basic corrosion resistance
• Conforms to ASME B18.2.1 dimensional standards

Compatibility

Designed as a standard replacement or stocking fastener for any application requiring a 5/8-11 UNC partially threaded hex head cap screw per ASME B18.2.1.

Installation Notes

Installation is typically performed by maintenance mechanics, millwrights, or tradespeople using a standard hex wrench or socket set. Always degrease mating threads and inspect the tapped hole for damage before installation. Do not exceed the rated load capacity of Grade 5 fasteners in high-strength or safety-critical structural joints where Grade 8 or equivalent may be specified.