Value Collection R52001204 Carriage Bolt 1/2-13 Unc

Product Description

The VALUE COLLECTION R52001204 is a standard square neck carriage bolt designed for structural fastening applications in construction, fabrication, and general mechanical assembly. It features a 1/2-13 UNC thread form and measures 8 inches in length under the head. The bolt is manufactured from 1006-1050 steel with a galvanized zinc-plated finish that provides corrosion resistance in moderate-exposure environments. The thread is partially threaded, consistent with ASME B18.5 standards for carriage bolts. The domed head and square neck seat into pre-drilled holes to resist rotation during installation without requiring a tool on the bolt head.

This carriage bolt is suited for wood-to-wood and wood-to-metal connections commonly encountered in structural framing, equipment mounting, dock construction, and general fabrication work. The square neck under the head locks into wood or soft material substrates to prevent spinning while a nut is driven from the opposite side. Its galvanized finish makes it appropriate for outdoor or mildly corrosive settings where bare steel would be insufficient.

Key Features

• 1/2-13 UNC thread form for standard coarse-thread fastening
• 8 inches length under head for deep structural connections
• Standard square neck resists rotation during nut installation
• Partially threaded shank per ASME B18.5
• 1006-1050 steel construction with galvanized zinc-plated finish for corrosion resistance

Compatibility

Designed as a standard ASME B18.5 carriage bolt for use with 1/2-13 UNC nuts and washers in wood, composite, or soft metal substrates wherever a partially threaded square neck carriage bolt is specified.

Installation Notes

Installation is typically performed by carpenters, ironworkers, or general contractors using a wrench or impact on the nut side only. A correctly sized hole should be drilled to allow the square neck to seat flush and resist turning. Apply appropriate torque to the nut using a standard wrench or socket; consult applicable structural or building code tables for required clamping load. Do not overdrive the square neck beyond the material surface, as this can compromise holding strength.