Value Collection R63640162 Carriage Bolt 5/16-18 2in 18-8 Ss

Product Description

The VALUE COLLECTION R63640162 is a 5/16-18 UNC carriage bolt with a 2-inch length under the head, manufactured from Grade 18-8 stainless steel with an uncoated finish. The square neck under the domed head prevents rotation during installation, eliminating the need for a wrench on the bolt side. Grade 18-8 stainless steel provides solid corrosion resistance for use in wet, outdoor, or mildly corrosive environments. This fastener is a standard choice for mechanical assemblies, woodworking connections, and general structural applications where a flush, rounded head profile is required. Licensed tradespeople and maintenance professionals across multiple industries rely on this bolt type for repeatable, tool-efficient assembly.

This carriage bolt suits residential and light commercial construction, equipment fabrication, and maintenance applications. It is commonly used to join wood-to-wood, wood-to-metal, or metal-to-metal assemblies where the smooth dome head must sit flush against the surface. The 5/16-18 coarse thread pattern is widely compatible with standard hex nuts and flange nuts of the same thread specification. Typical applications include framing connections, dock and fence hardware, equipment mounting, and utility shelving. Sold individually, with a minimum order quantity of 5 units.

Key Features

• 5/16-18 UNC coarse thread for broad hardware compatibility
• 2-inch length under head suits medium-depth fastening applications
• Square neck locks into material to resist rotation during nut tightening
• Grade 18-8 stainless steel construction resists rust and corrosion
• Uncoated finish — no risk of coating delamination in service
• Rounded dome head provides a clean, snag-free surface appearance

Compatibility

Designed for use with standard 5/16-18 UNC hex nuts, coupling nuts, and flange nuts in inch-measurement fastener applications across construction, fabrication, and maintenance assembly work.

Installation Notes

Installation requires inserting the bolt through a pre-drilled or punched hole sized for a 5/16-inch shank, then seating the square neck firmly into the material to prevent spinning. A standard wrench or socket is applied to the nut side only — no tool contact is needed on the head. Power down or de-energize any equipment before fastening in electrical enclosure or panel applications. Follow applicable building codes and project specifications for fastener grade and torque requirements.