Value Collection D30145-11/4 Hex Cap Screw 5/8-11

Product Description

The VALUE COLLECTION D30145-11/4 is a fully threaded hex head cap screw designed for general mechanical fastening in industrial, commercial, and trade applications. Manufactured from Grade 5 steel with a zinc-plated finish, this fastener delivers solid tensile strength and basic corrosion resistance suitable for indoor and light-exposure environments. The 5/8-11 UNC thread and 1-1/4 inch length under head make it a standard choice for structural assemblies and equipment mounting. It conforms to ASME B18.2.1, the governing standard for inch-series hex cap screws. Installation requires a standard hex wrench or socket set.

This cap screw is used across a range of trade and light industrial applications including HVAC equipment mounting, electrical enclosure assembly, plumbing fixture support structures, and general mechanical fabrication. The 5/8-11 UNC thread pattern is one of the most common coarse-thread sizes encountered in domestic equipment and structural steel work. Zinc plating provides a layer of protection against oxidation in dry or low-humidity conditions. The fully threaded body allows maximum engagement along the entire shank length, making it well suited for thinner material assemblies where partial threading would reduce holding strength.

Key Features

• Grade 5 steel construction provides medium-strength tensile performance for general fastening
• Fully threaded shank allows maximum thread engagement throughout the fastener length
• Zinc-plated finish offers basic corrosion resistance for indoor and sheltered installations
• 5/8-11 UNC coarse thread is a widely used standard size compatible with common nuts and tapped holes
• Conforms to ASME B18.2.1 for dimensional consistency and interchangeability

Compatibility

Designed as a standard inch-series hex head cap screw for use with 5/8-11 UNC threaded nuts, tapped holes, and standard hex-drive tooling in general mechanical and structural assemblies.

Installation Notes

This fastener is typically installed by mechanical, HVAC, electrical, or plumbing trades as part of equipment mounting or structural assembly work. Always de-energize and lock out equipment before replacing fasteners in energized assemblies. Use the appropriate socket or wrench size for the hex head and apply a torque value specified by the equipment manufacturer or applicable code. Do not mix Grade 5 hardware with higher-grade hardware in critical load-bearing joints without consulting the relevant structural specification.