Hillman Fasteners 240018 Carriage Bolt 1/4-20x1-1/2 in 100 Pack

Product Description

The HILLMAN FASTENERS 240018 is a 1/4-20 x 1-1/2 inch steel carriage bolt sold in a 100-piece pack. It features a round dome head, a square neck that locks into wood or composite material to prevent rotation during tightening, and a coarse-thread shank. These bolts are standard hardware on framing, decking, equipment mounting, and structural assembly applications across residential and light commercial jobsites. Plumbers, HVAC techs, electricians, and general contractors reach for carriage bolts when fastening equipment bases, pipe supports, unistrut assemblies, and access panels to wood substrates.

This 100-pack is suited for contractors and service shops that need a reliable quantity on hand for repeat fastening tasks. The 1/4-20 coarse thread is a widely used size for light structural connections, equipment mounting brackets, and utility attachment points. The steel construction handles standard indoor and sheltered outdoor environments where corrosion is not the primary concern. Each bolt is consistent in dimension, making bulk use on production or service work straightforward.

Key Features

• 1/4-20 coarse thread for fast engagement and broad hardware compatibility
• 1-1/2 inch length suits thin-to-medium substrate connections
• Round dome head provides a finished appearance with no drive recess needed on the bolt side
• Square neck locks into wood or soft material to prevent spinning without a secondary wrench
• Steel construction for dependable tensile strength in standard service conditions
• 100-piece pack supports bulk or repeat-use applications

Compatibility

Designed as a standard 1/4-20 x 1-1/2 inch carriage bolt for use with any 1/4-20 nut and compatible washer in wood, composite, or soft-material fastening applications.

Installation Notes

Installation requires a standard 7/16-inch wrench or socket on the nut side — no tool is needed on the bolt head once the square neck seats. Always pull the square neck fully into the substrate before torquing the nut to prevent rotation. Follow applicable building codes or equipment manufacturer torque guidelines for structural connections. Use appropriate corrosion-resistant hardware if the installation will be exposed to moisture or outdoor conditions.