Hillman Fasteners 240204 Carriage Bolt 3/8-16 X 8 in 50 Pack

Product Description

The HILLMAN FASTENERS 240204 is a 3/8-16 x 8 inch steel carriage bolt with a round head, square neck, and coarse thread pattern. Carriage bolts are designed for through-bolt fastening applications where a smooth, finished head is required on one face of the assembly. The square neck bites into wood or soft material as the nut is tightened, preventing the bolt from spinning during installation. This SKU ships as a box of 4 packs, each containing 50 bolts, for a total of 200 bolts per box. At 44 pounds per box, these are suited for job-site bulk stocking.

Carriage bolts in the 3/8-16 coarse thread size are commonly used in wood-to-wood and wood-to-metal connections in structural, framing, and equipment-mounting applications. Typical uses include deck framing, fence construction, equipment platform assembly, and general trade fabrication. The 8 inch length accommodates thicker lumber assemblies and stacked material connections. Suitable for residential and light commercial construction projects where a flush, round head profile is specified.

Key Features

• 3/8-16 coarse thread for secure engagement in wood and metal applications
• 8 inch length suited for thick lumber and stacked assemblies
• Round head, square neck design prevents spinning without a secondary tool on the bolt head
• Steel construction for structural-grade strength
• 50 bolts per pack, 4 packs per box for efficient job-site stocking

Compatibility

Designed as a standard 3/8-16 coarse thread carriage bolt for use with matching 3/8-16 hex nuts and washers in wood-to-wood or wood-to-metal structural fastening applications.

Installation Notes

Carriage bolts are typically installed by carpenters, general contractors, and trade professionals using a standard drill or spade bit to bore a through-hole matching the bolt diameter. Drive the bolt through the material until the square neck seats flush, then apply a washer and hex nut on the opposite face and tighten with a wrench or socket. Follow applicable building codes for structural connections. Do not substitute carriage bolts for high-strength structural bolts in engineered connection details without engineering approval.