LINDSTROM Carriage Bolt: Square Neck, 5/16"-18 Thread Size, 2 1/4 in lg, Steel, Grade 2

A Grade 2 Steel Square Neck Carriage Bolt is used to fasten metal to wood or metal to metal in construction, machinery assembly, and structural applications. The square neck prevents rotation during tightening, making it ideal for timber framing, conveyor systems, and heavy equipment where a secure, non-slip joint is required.

This LINDSTROM carriage bolt has a 5/16"-18 thread size, is 2 1/4 inches long, and is made from Grade 2 plain steel. It features a square neck to resist turning. The manufacturer part number is CAI50310225-050P, and it comes in a 50-piece pack. 3G Electric supplies this standard industrial fastener globally.

3G Electric supplies LINDSTROM carriage bolts worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your facility. Contact us to order the 5/16"-18 x 2 1/4 inch Grade 2 plain steel bolt (SKU 860AX6) in a 50-pack. We source and deliver genuine industrial hardware to any location.

To install a square neck carriage bolt, insert the bolt through a pre-drilled hole that matches the square neck profile. The square neck embeds into the material, preventing rotation. Tighten the nut from the opposite side with a wrench. For wood, use a washer under the nut to distribute load. Always follow torque specifications for Grade 2 steel.