Value Collection CAI507503000-020BX Carriage Bolt 3/4-10

Product Description

The VALUE COLLECTION CAI507503000-020BX is a 3/4-10 UNC carriage bolt with a 3-inch length under head and a square neck design. Manufactured from Grade 5 steel with a zinc-plated finish, this fastener delivers reliable clamping strength and basic corrosion resistance in standard structural and mechanical assembly applications. The square neck seats into the mating material to prevent rotation during tightening, eliminating the need for a wrench on the bolt head. This bolt is a practical choice for contractors, maintenance technicians, and tradespeople handling wood-to-metal or wood-to-wood connections in general construction and equipment work.

Carriage bolts of this size and grade are commonly used in structural framing, deck construction, equipment mounting, and general fabrication where a flush, round head profile is required on the visible face. The 3/4-10 UNC thread is a standard coarse-thread designation compatible with widely available nuts and hardware. The zinc plating provides a baseline level of moisture resistance suitable for dry to mildly humid environments.

Key Features

• 3/4-10 UNC coarse thread for broad hardware compatibility
• 3-inch length under head for standard structural fastening depth
• Square neck prevents rotation during nut tightening without a secondary tool
• Grade 5 steel construction for reliable tensile and shear strength
• Zinc-plated finish for basic corrosion protection

Compatibility

Designed as a standard replacement or stock fastener compatible with 3/4-10 UNC threaded nuts and hardware in general construction, wood framing, and mechanical assembly applications.

Installation Notes

Carriage bolts are typically installed by general contractors, maintenance technicians, or ironworkers using standard wrenches or sockets on the nut side only. Before installation, ensure the mating material is drilled to the correct clearance diameter so the square neck seats flush and locks properly. Follow applicable building codes and torque guidelines for Grade 5 hardware as specified by project engineering documents. Do not use impact tools on the bolt head, as the round profile is not designed for driven installation.