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The VALUE COLLECTION 3GBC908C0200 is a 1/2-13 UNC carriage bolt with a 2-inch length under head, designed for structural and general fastening applications across construction, fabrication, and maintenance trades. The bolt features a fully threaded shank and a square neck that locks into wood or fabricated panels to prevent rotation during installation. Manufactured from 1006/1050 steel with a galvanized zinc finish, it provides corrosion resistance suited for both indoor and outdoor environments. This fastener conforms to ASME B18.5, making it a reliable choice for applications that require standardized dimensional compliance.
This carriage bolt is used in wood-to-wood, wood-to-metal, and light structural assemblies where a smooth dome head is required on the visible face. Common applications include decking, framing, playground equipment, agricultural structures, and general maintenance work. The galvanized finish extends service life in exterior or high-humidity environments. Installers in construction, carpentry, and general contracting trades regularly specify this size for connections requiring a flush-bearing surface without a separate washer under the head.
Designed as a standard ASME B18.5 inch-series carriage bolt compatible with any application requiring a 1/2-13 UNC fully threaded carriage bolt with a 2-inch length under head.
A licensed carpenter, ironworker, or general contractor typically installs carriage bolts as part of structural or semi-structural assemblies. Drill a hole sized to the bolt shank diameter so the square neck seats flush and does not spin. Apply a flat washer and nut on the through side and tighten with a wrench or impact driver to the appropriate torque for the material and joint design per project specifications. Do not over-drive the square neck into material that cannot support lateral bearing loads, as this may cause the neck to strip and allow rotation.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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