Value Collection 837045PR Hex Socket Cap Screw 5-40 Unc

Product Description

The VALUE COLLECTION 837045PR is a hex socket cap screw designed for secure, high-torque fastening in tight clearance applications where a standard hex head wrench cannot access. Threaded 5-40 UNC and fully threaded along its 3/8-inch length under head, it is driven with a 3/32-inch hex key. The fastener is manufactured from alloy steel and finished with a zinc plating that meets ASTM B695 standards, providing a corrosion-resistant surface layer suitable for general industrial and mechanical assembly environments. Machinists, maintenance technicians, and assembly professionals commonly specify this screw for precision equipment, fixtures, and light structural sub-assemblies.

This screw is suited for use in production machining, tooling and fixture fabrication, electronic enclosure assembly, and light mechanical sub-assemblies where a low-profile, recessed-drive fastener is required. The 5-40 UNC thread specification is common in instrument-grade and light-duty mechanical fastening where fine thread control and reliable clamping load are priorities. Sold individually with a minimum order quantity of 100 pieces per order, this part is appropriate for shop stock, MRO programs, and production line replenishment.

Key Features

• 5-40 UNC thread form for instrument-grade and precision mechanical fastening
• Fully threaded shank along the entire 3/8-inch length under head
• 3/32-inch hex socket drive for use with standard Allen or hex key tooling
• Alloy steel construction for tensile strength above standard carbon steel fasteners
• Zinc-plated finish meets ASTM B695 for baseline corrosion resistance
• UNSPSC Code 31161501 for procurement and catalog system classification

Compatibility

Designed as a standard 5-40 UNC hex socket cap screw for use in any application or assembly specifying a 5-40 UNC internally threaded hole and a recessed hex drive fastener with a 3/8-inch grip length.

Installation Notes

Install using a calibrated 3/32-inch hex key or Allen driver; do not use worn or undersized keys, as they can strip the socket recess. Ensure the mating threaded hole is clean and free of debris before installation. Apply thread-locking compound if vibration resistance is required in the specific assembly. Always follow the fastener torque specifications provided by the equipment or fixture designer for the given material and thread class.