Hillman Fasteners 240288 Carriage Bolt 1/2-13 X 1-1/2 in 50 Pack

Product Description

The HILLMAN FASTENERS 240288 is a 1/2-13 x 1-1/2 inch coarse-thread carriage bolt sold in a 50-piece pack. It features a round dome head and a square neck that bites into wood or soft material to resist rotation during tightening, eliminating the need to hold the bolt head with a wrench. The shank is steel construction throughout. This fastener is a standard choice for structural wood connections, deck framing, dock hardware, and general-purpose through-bolting applications where a smooth finished head face is required on one side of the joint.

These carriage bolts are suited for residential and light commercial construction, framing, and repair work. Typical install scenarios include deck ledger connections, post-to-beam fastening, playground equipment assembly, and fence hardware. The 1/2-13 thread designation indicates a 1/2-inch nominal diameter with 13 threads per inch on a Unified Coarse (UNC) thread form, which is the standard for structural steel and wood fastening in North American construction practice. A flat washer and hex nut are used on the threaded end to complete the connection.

Key Features

• 1/2-13 UNC coarse thread for strong, reliable engagement with standard hex nuts
• Round dome head provides a clean, snag-free face on the visible side of the joint
• Square neck locks into substrate to prevent bolt rotation during nut tightening
• Steel construction for high shear and tensile load capacity in structural applications
• 50-piece pack quantity suits job-site and shop stocking needs

Compatibility

Designed as a standard 1/2-13 UNC carriage bolt compatible with any matching 1/2-13 hex nut and flat washer. Suitable for wood-to-wood and wood-to-metal through-bolting applications requiring a round-head square-neck fastener.

Installation Notes

Installation is typically performed by carpenters, general contractors, or maintenance trades. Drill a clean through-hole sized to match the bolt diameter before driving the square neck flush with the surface. Always use a flat washer under the nut to distribute load and prevent pull-through on the threaded side. Follow applicable building code requirements, including IRC and IBC fastener schedules, for structural connections.