Value Collection A996208 Hex Head Cap Screw 5/16-18x3 Gr5

Product Description

The VALUE COLLECTION A996208 is a fully threaded hex head cap screw designed for general mechanical and structural fastening applications. It features a 5/16-18 UNC thread profile and measures 3 inches under the head, making it suitable for through-bolting applications where full thread engagement along the entire shank length is required. Manufactured from Grade 5 steel with a zinc-plated finish for baseline corrosion resistance, this fastener conforms to ASME B18.2.1 dimensional standards. It is installed using a standard hex wrench or socket driver and is available in a package quantity of 25 pieces.

This fastener is commonly used in light industrial, mechanical assembly, HVAC equipment mounting, electrical enclosure fabrication, and general trade service work. The 5/16-18 UNC thread is one of the most widely specified coarse-thread sizes in inch-measurement fastener applications. The fully threaded shank allows consistent clamping force across varying material thicknesses and is particularly useful where nuts are used on the back side of the joint rather than tapped holes.

Key Features

• Fully threaded shank provides maximum thread engagement for nut-and-bolt through-fastening
• Grade 5 steel construction meets medium-strength fastener requirements per SAE standards
• Zinc-plated finish offers basic corrosion and oxidation resistance for indoor and semi-protected environments
• Conforms to ASME B18.2.1 for dimensional consistency and interchangeability
• UNC (Unified National Coarse) thread form for fast assembly and good resistance to cross-threading
• Sold in a 25-piece package to support service stock and small-run assembly work

Compatibility

Designed as a standard inch-series hex head cap screw for use with 5/16-18 UNC threaded nuts, inserts, or tapped holes in steel, aluminum, and similar structural materials.

Installation Notes

Installation is performed with a 1/2-inch hex wrench, socket, or nut driver. Ensure mating threads are clean and free of debris before assembly. De-energize any electrical systems or relieve mechanical loads before replacing fasteners in live equipment. Do not exceed the proof load for Grade 5 fasteners; consult applicable mechanical or structural codes for torque guidance.