Value Collection 3106CH2 Hex Head Cap Screw 5/16-18x3/8

Product Description

The VALUE COLLECTION 3106CH2 is a fully threaded hex head cap screw designed for general-purpose fastening in mechanical, structural, and fabrication applications. It carries a 5/16-18 UNC thread and measures 3/8 inches under the head. Manufactured from Grade 2 steel with a zinc-plated finish, it provides baseline corrosion resistance suitable for indoor and sheltered environments. This screw meets ASME B18.2.1 and SAE J429 dimensional and material standards. It is a staple fastener for HVAC equipment assembly, panel mounting, pipe supports, and similar trade installations where a standard hex drive and full thread engagement are required.

This hex head cap screw is appropriate for residential and light commercial applications across HVAC, plumbing, and electrical trades. Its fully threaded shank allows maximum thread engagement in thinner materials and tapped holes, making it well suited for equipment brackets, junction box mounting, sheet metal frames, and general mechanical assembly. The 5/16-18 UNC thread pattern is one of the most common inch-series sizes encountered in the field, and Grade 2 steel is adequate for low-to-moderate clamping force requirements. Sold in minimum order quantities of 100 pieces per the manufacturer specification.

Key Features

• 5/16-18 UNC thread for broad compatibility with standard tapped holes and hex nuts
• Fully threaded shank provides maximum thread engagement in thin-material and through-hole applications
• Grade 2 steel construction meets SAE J429 mechanical property requirements
• Zinc-plated finish offers basic corrosion resistance for indoor and sheltered use
• Conforms to ASME B18.2.1 dimensional standards for consistent fit and interchangeability
• Inch measurement system for direct use with standard SAE tooling

Compatibility

Designed as a standard inch-series hex head cap screw for use in any application requiring a 5/16-18 UNC fully threaded fastener conforming to ASME B18.2.1 and SAE J429.

Installation Notes

Install using a standard hex wrench or socket driver sized for a 5/16-18 hex head fastener. Always power down or de-energize equipment before fastening components near electrical panels or live circuits, in accordance with applicable NEC guidelines. Do not exceed the torque capacity appropriate for Grade 2 steel at this thread size, and avoid using these fasteners in high-temperature or outdoor environments where Grade 2 zinc-plated steel may be insufficient. A licensed or qualified trade professional should determine suitability for the specific load and environmental conditions of each installation.