Value Collection 209061B Hex Head Cap Screw 5/16-18 X 2-3/4 in

Product Description

The VALUE COLLECTION 209061B is a partially threaded hex head cap screw designed for general industrial and mechanical fastening applications. It features a 5/16-18 UNC thread size and measures 2-3/4 inches under the head. Constructed from 18-8 stainless steel with a bright, uncoated finish, this fastener delivers solid corrosion resistance in wet, outdoor, and chemically mild environments. The partial threading allows for a smooth shank section, which helps draw mating parts together without thread interference in the unthreaded portion. Tradespeople and maintenance professionals will find this screw suited for a range of structural and equipment assembly tasks.

This hex head cap screw is appropriate for use in HVAC equipment mounting, plumbing fixture assembly, electrical enclosure fabrication, and general mechanical maintenance work. The 5/16-18 UNC thread pattern is one of the most common unified coarse thread sizes, making replacement and sourcing straightforward in most shop and field environments. The 18-8 stainless steel construction makes it a practical choice where carbon steel fasteners would be at risk of rust or staining.

Key Features

• 5/16-18 UNC partially threaded for reduced thread interference and strong clamping force
• 18-8 stainless steel construction provides corrosion resistance in damp and mildly corrosive environments
• 2-3/4 inch length under head accommodates thicker assemblies and stacked material applications
• Bright, uncoated finish maintains dimensional accuracy for precise fit to standard nuts and washers
• Hex head drive style compatible with standard hex sockets and wrenches for reliable torque application

Compatibility

Designed as a standard UNC hex head cap screw compatible with any 5/16-18 threaded hex nut, insert, or tapped hole following Unified National Coarse thread specifications.

Installation Notes

Installation should be performed using a properly sized hex socket or open-end wrench to avoid rounding the hex head. Follow applicable torque guidelines for 18-8 stainless steel fasteners, as stainless can be prone to galling if over-torqued or driven at high speed without lubrication. Use a thread lubricant or anti-seize compound when installing into stainless or aluminum mating hardware to prevent seizing. Always verify thread engagement depth meets the requirements of the joint design before final tightening.