Hillman Fasteners 811518 Galvanized Hex Bolt 1/4x3 100pk

Product Description

The HILLMAN FASTENERS 811518 is a Grade 2 galvanized hex bolt designed to fasten facing materials and resist shear movement in structural and general-purpose connections. Sold in a 100-count pack, each bolt measures 1/4 inch in diameter by 3 inches in length. The hot-dip or electro-galvanized finish provides corrosion resistance suited to both indoor and outdoor environments. These machine bolts rely on a standard hex-head drive and are appropriate for wood-to-wood, wood-to-metal, and metal-to-metal fastening applications. Licensed trades and experienced installers working with structural panels, framing connections, or equipment mounting regularly reach for Grade 2 hex bolts of this profile.

This bolt is used across a wide range of residential and light commercial applications. Common install scenarios include framing assemblies, joist hangers, equipment brackets, HVAC unit mounting rails, electrical panel supports, and general structural connections where a 1/4-inch fastener is specified. The galvanized finish makes the 811518 suitable for applications with moderate moisture exposure. The 100-count packaging supports both single-job use and shop-stock replenishment for contractors who go through hardware at volume.

Key Features

• Grade 2 galvanized construction provides corrosion resistance for general and moderate-exposure applications
• 1/4 inch x 3 inch dimensions suit a wide range of structural and equipment-mounting fastening needs
• Standard hex-head drive is compatible with common wrenches and socket sets
• Designed to resist shear movement in wood-to-wood, wood-to-metal, and metal-to-metal connections
• 100-count pack supports job-site stock and high-volume installation work

Compatibility

Designed as a general-purpose Grade 2 hex bolt compatible with standard 1/4-inch nuts and washers of matching grade and finish. Pre-drilled clearance holes are required for proper installation.

Installation Notes

Installation should be performed by qualified tradespeople following applicable building codes and fastener specifications for the assembly type. Always pre-drill holes to the correct clearance diameter before inserting the bolt to avoid splitting wood substrates or misaligning metal connections. Use washers and nuts of the same grade and finish to maintain consistent corrosion resistance across the fastener assembly. Torque to the fastener specification called out in the project drawings or applicable code — do not over-torque, which can strip threads or deform the joint material.