Hillman Fasteners 812620 Galvanized Carriage Bolt 25 Pack

Product Description

The HILLMAN FASTENERS 812620 is a galvanized carriage bolt sized at 1/2 inch diameter by 4 inches in length, sold in a 25-pack. It is designed to fasten a wooden face to either a wood or metal frame in structural and general fastening applications. The flat round head eliminates the need for a washer and delivers a semi-flush finish at the surface. The square underside of the head is self-locking, preventing spinning during installation and removing the need for a driving tool on the bolt end. The galvanized finish provides corrosion and rust resistance, though the coating may present a chalky appearance. Carpenters, contractors, and trade professionals install these bolts in framing, decking, docking, and other load-bearing assemblies.

These carriage bolts are suited for residential and light commercial construction projects where a wood-to-wood or wood-to-metal connection is required. Typical applications include deck framing, fence construction, playground equipment, and general structural fastening where a clean, low-profile head is preferred. The 25-pack quantity supports job-site use where multiple fasteners are needed in a single application. No specialty tooling is required at the bolt end during installation, making the process straightforward for field conditions.

Key Features

• 1/2 inch diameter by 4 inch length — sized for structural wood and metal frame connections
• Self-locking square neck under the head prevents bolt spinning without a secondary tool
• Flat round head eliminates the need for a washer and provides a semi-flush surface finish
• Galvanized finish delivers corrosion and rust resistance for outdoor and exposed applications
• Sold in a 25-pack for efficient job-site use

Compatibility

Designed as a standard carriage bolt for fastening wooden faces to wood or metal frames in structural, framing, and general construction applications.

Installation Notes

Installation is performed by carpenters, general contractors, or qualified tradespeople. Drill a clean hole matching the bolt diameter through both mating materials before driving the bolt through. The square neck seats into the wood on the near side to prevent rotation, so no wrench or tool is needed at the bolt head. A nut and, where required by application, a washer are tightened from the opposite side using an appropriate wrench; always follow applicable building codes for structural fastener requirements.