Value Collection D30145-5 Hex Cap Screw 5/8-11 X 5 in Grade 5

Product Description

The VALUE COLLECTION D30145-5 is a 5/8-11 hex head cap screw machined to Grade 5 steel specifications and finished with a zinc-plated coating for corrosion resistance. The fastener measures 5 inches under the head and features partial threading along the shank. Thread form follows the Unified National Coarse (UNC) standard, and the fastener is manufactured to ASME B18.2.1 dimensional requirements. This screw is suited for structural and mechanical assembly applications where a reliable hex-drive fastener is required. Electricians, plumbers, HVAC technicians, and general mechanical contractors encounter this fastener type routinely in equipment mounting, panel attachment, and structural bracketing work.

The D30145-5 is appropriate for general industrial and trade installation environments where 5/8-11 UNC fasteners are specified. Typical applications include mounting heavy mechanical equipment, securing structural steel members, and assembling fabricated frames or brackets. The partial threading leaves a smooth shank section near the head, which is preferred in applications requiring a grip length or where shear load is a consideration. Minimum order quantity is 10 units per order.

Key Features

• 5/8-11 UNC thread size for broad compatibility with standard tapped holes and hex nuts
• 5-inch length under head with partial threading along the shank
• Grade 5 steel construction meets medium-strength fastener requirements
• Zinc-plated finish provides baseline corrosion protection in indoor and sheltered environments
• Manufactured to ASME B18.2.1 dimensional standards for consistent fit and interchangeability

Compatibility

Designed for use in any application requiring a 5/8-11 UNC hex head cap screw with a 5-inch length under head. Compatible with standard 5/8-11 hex nuts, washers, and tapped holes conforming to UNC thread standards.

Installation Notes

Installation is performed with a standard hex wrench or socket drive sized for a 5/8-inch hex head cap screw. Ensure mating threads are clean and free of debris before installation. Follow applicable torque specifications from the equipment manufacturer or relevant structural code for Grade 5 fasteners of this diameter. Do not substitute a lower-grade fastener in applications where Grade 5 or higher is specified by the design.