Value Collection 781390PS Carriage Bolt 1/2-13 1-1/4 in 18-8 Ss

Product Description

The VALUE COLLECTION 781390PS is a 1/2-13 carriage bolt designed for fastening applications where a flush, self-locking head and corrosion resistance are required. The bolt features a round dome head and a square neck that seats into the work material to prevent rotation during nut tightening. Manufactured from 18-8 stainless steel with a bright uncoated finish, it resists rust and is suitable for use in wet or corrosive environments. The 1-1/4 inch length is measured under the head, following standard inch measurement conventions. This fastener is commonly installed by maintenance technicians, electricians, plumbers, and general tradespeople working with metal or wood assemblies.

This carriage bolt is suited for light structural and mechanical fastening tasks in residential and commercial settings. Typical applications include securing equipment mounts, brackets, hangers, and assemblies where the bolt passes through a pre-drilled hole and the square neck prevents spin-out without requiring a wrench on the bolt itself. The 18-8 stainless construction makes it appropriate for outdoor, pool, marine-adjacent, or damp indoor environments where carbon steel fasteners would corrode.

Key Features

• 1/2-13 UNC thread for compatibility with standard inch-series nuts and hardware
• 1-1/4 inch length under head for precise fitment in pre-drilled assemblies
• Square neck prevents bolt rotation during installation without a secondary tool
• 18-8 stainless steel construction provides corrosion resistance in wet and outdoor environments
• Bright uncoated finish maintains dimensional accuracy and natural corrosion resistance of the alloy

Compatibility

Designed as a standard 1/2-13 UNC inch-series carriage bolt suitable for use with any standard 1/2-13 hex nut or coupling nut in wood, metal, or composite assemblies.

Installation Notes

Install using a standard wrench or socket on the nut side only — the square neck seats into the material to hold the bolt without requiring a tool on the head. Ensure the receiving hole is sized to allow the square neck to seat fully before torquing the nut. Follow applicable mechanical and structural fastening codes for the specific application. Stainless steel fasteners are prone to galling — apply an appropriate anti-seize compound to the threads when installing in stainless-to-stainless assemblies.