Value Collection 489086PS Carriage Bolt 3/8-16 6 Inch Zinc

Product Description

The VALUE COLLECTION 489086PS is a 3/8-16 carriage bolt with a 6-inch length under the head and a square neck, manufactured from Grade 2 steel with a zinc-plated finish. Carriage bolts are designed for through-bolting wood, metal, and composite materials where a flush, non-rotating head is required. The square neck seats into the substrate as the nut is tightened, preventing the bolt from spinning during installation. The zinc coating provides corrosion resistance in standard indoor and light outdoor service conditions. This fastener meets ASTM A307 standards and is sized in the inch measurement system. It is a general-purpose structural fastener commonly used by contractors, tradespeople, and maintenance professionals across construction, framing, and mechanical assembly applications.

This carriage bolt is suited for wood-to-wood, wood-to-metal, and light structural connections in residential and commercial construction. Typical applications include deck framing, fence assembly, equipment mounting, and general utility fastening where a smooth domed head and self-locking square neck are required. The 3/8-16 UNC thread is a widely used coarse-thread standard, compatible with standard 3/8-16 hex nuts and washers. This item ships in a minimum order quantity of 50 pieces per package.

Key Features

• 3/8-16 UNC coarse thread for broad compatibility with standard nuts and hardware
• 6-inch length under head provides reach for thick material stacks or through-bolting applications
• Square neck design locks into substrate to prevent rotation during nut tightening
• Grade 2 steel construction meets ASTM A307 fastener standards
• Zinc-plated finish provides corrosion resistance for standard service environments
• Inch measurement system; consistent sizing for use with standard imperial hardware

Compatibility

Designed as a standard inch-series carriage bolt for use with 3/8-16 UNC hex nuts, flat washers, and lock washers in general construction and mechanical fastening applications.

Installation Notes

Installation is performed by inserting the bolt through a pre-drilled hole and seating the square neck into the material before threading on the nut. Use an appropriately sized wrench or socket on the nut side only — do not attempt to turn the head. Ensure the hole diameter matches the bolt shank closely to allow the square neck to seat and grip properly. Follow applicable building codes and structural requirements for fastener spacing and load ratings.