Hillman Fasteners 811590 Galvanized Hex Bolts 3/8x4 50PK

Product Description

The HILLMAN FASTENERS 811590 is a 50-pack of Grade 2 galvanized hex bolts sized at 3/8 inches by 4 inches. These machine bolts are designed to adhere facing materials and prevent shear movement across a range of structural connections. The hot-dip or electro-galvanized zinc coating provides corrosion resistance suited for both indoor and outdoor environments. Grade 2 classification makes them appropriate for most general-purpose fastening tasks where high-strength alloy hardware is not required. Each bolt features a standard hex head for use with common wrenches and sockets.

These bolts are applicable in wood-to-wood, wood-to-metal, and metal-to-metal assemblies. Typical use cases include framing connections, joist hangers, equipment mounting, and structural panel attachment in light commercial and residential construction. The 50-piece pack quantity supports job-site or shop inventory for repetitive fastening tasks. They are appropriate for use by carpenters, millwrights, general contractors, and maintenance tradespeople working with standard structural materials.

Key Features

• Grade 2 galvanized construction provides corrosion resistance for general-purpose indoor and outdoor use
• 3/8 inches by 4 inches sizing suits medium-duty structural fastening applications
• Hex head design accepts standard wrenches and sockets for fast installation
• Prevents shear movement in wood-to-wood, wood-to-metal, and metal-to-metal connections
• 50-piece pack quantity reduces restocking frequency on active job sites

Compatibility

Designed for use with Grade 2 hex nuts and washers of matching finish in standard 3/8-inch clearance holes across wood, light steel, and structural panel assemblies.

Installation Notes

Pre-drill clearance holes before installation to avoid splitting wood substrates or misaligning metal panels. Use washers and nuts of a similar grade and finish to maintain consistent load distribution and corrosion performance across the joint. A standard ratchet or wrench is sufficient for installation; avoid power-driving beyond snug-tight without a torque reference appropriate to the application. Always consult applicable building codes for structural fastener requirements.