Value Collection MS16997-82 Hex Socket Cap Screw 5/16-18

Product Description

The VALUE COLLECTION MS16997-82 is a hex socket cap screw designed for applications requiring a strong, corrosion-resistant fastener with a low-profile, recessed drive. Built to ASME B18.3 standards from 4037-grade alloy steel with a yellow cadmium-plated finish, this screw delivers reliable clamping force in demanding mechanical and structural assemblies. The 5/16-18 UNC thread and 1-1/2 inch length under head make it well-suited for through-bolting medium-thickness components. The 1/4 inch hex drive accepts a standard Allen key or hex bit driver for controlled, torque-efficient installation in confined spaces.

This fastener is used across a wide range of industrial and mechanical applications including machinery assembly, equipment frames, brackets, and structural fixturing where a socket drive is preferred over an external hex head. The fully threaded shank provides maximum thread engagement across the full length under head. Yellow cadmium plating offers corrosion resistance and is commonly specified in aerospace-adjacent and defense-adjacent maintenance and repair work where this military-standard part number applies.

Key Features

• ASME B18.3 fastener standard ensures dimensional conformance for OEM and MRO applications
• 4037-grade alloy steel construction for high tensile strength and durability
• Yellow cadmium-plated finish provides corrosion and oxidation resistance
• Fully threaded shank maximizes thread engagement for secure clamping
• 1/4 inch hex socket drive allows installation in tight clearance areas with Allen keys or hex bit drivers
• 5/16-18 UNC coarse thread for faster assembly and good resistance to cross-threading

Compatibility

Designed as an OEM-style replacement or MRO fastener for applications specifying a 5/16-18 UNC hex socket cap screw to ASME B18.3 with a 1-1/2 inch length under head and yellow cadmium-plated alloy steel construction.

Installation Notes

Installation is performed with a 1/4 inch hex key or socket hex bit driver. Ensure mating threads are clean and free of debris before installation. Follow applicable torque specifications from the equipment manufacturer or relevant fastener standard for the material grade. Do not mix cadmium-plated fasteners with incompatible metals in environments subject to galvanic corrosion concerns.