Value Collection 781378PS Carriage Bolt 3/8-16 6in 18-8 Ss

Product Description

The VALUE COLLECTION 781378PS is a 3/8-16 carriage bolt designed for fastening applications requiring a clean, round-head profile with a square neck that resists rotation during installation. Manufactured from 18-8 stainless steel with a bright uncoated finish, this bolt delivers solid corrosion resistance suitable for both indoor and outdoor use. It measures 6 inches in length under the head and follows Unified National Coarse (UNC) thread standards. Plumbers, electricians, structural trades, and general contractors commonly use carriage bolts when securing wood-to-wood or wood-to-metal connections where a flush, finished appearance is required.

This carriage bolt is well suited for residential and light commercial construction, decking, dock building, equipment mounting, and general fabrication tasks. The 3/8-16 UNC thread pattern is one of the most common sizes used across structural and mechanical assembly work. The square neck beneath the domed head locks into wood or pre-drilled metal to prevent spinning while the nut is driven from the opposite side, speeding up single-sided installation.

Key Features

• 18-8 stainless steel construction for corrosion resistance in wet and outdoor environments
• 3/8-16 UNC thread for compatibility with standard hex nuts and threaded inserts
• 6-inch length under head accommodates thicker assemblies and stacked material
• Square neck design prevents rotation during nut tightening without a wrench on the bolt head
• Bright uncoated finish — no coating to interfere with thread fit or dimensional tolerances
• Sold individually, allowing precise quantity purchasing for small jobs or repair work

Compatibility

Designed as a standard 3/8-16 UNC carriage bolt suitable for use with any 3/8-16 hex nut, coupling nut, or threaded insert in wood, metal, or composite assemblies.

Installation Notes

Installation is typically performed with a standard wrench or socket on the nut side — no tool is required on the bolt head once the square neck is seated. Drill or punch a clean hole slightly smaller than 3/8 inch so the square neck seats firmly and grips without spinning. Follow applicable building codes, including IBC or local structural requirements, when using carriage bolts in load-bearing connections. Always verify that the mating nut material is compatible with 18-8 stainless steel to avoid galvanic corrosion in mixed-metal assemblies.