LINDSTROM Grade 5 Steel Square Neck Carriage Bolts

Lindstrom Grade 5 steel square neck carriage bolts are used to fasten metal to wood or metal in structural assemblies. The square neck locks into a square hole, preventing rotation during tightening. Common in construction, machinery mounting, and heavy equipment where a secure, vibration-resistant joint is required.

These Lindstrom carriage bolts have a 3/8"-16 thread size, 1 inch length, Grade 5 steel construction, and zinc-plated finish. They are sold in packs of 5. The square neck design prevents spinning during installation. Part number CAI50370100GEO321+-005P.

3G Electric supplies Lindstrom Grade 5 square neck carriage bolts worldwide. We handle full logistics, customs clearance, and delivery to your site. As a global industrial solutions provider, we source genuine parts across 14 departments — including specialist expertise in combustion, pumps, and controls — ensuring you get the right fastener for the job.

Insert the bolt through a square hole in the material so the square neck engages and prevents rotation. Tighten the nut from the opposite side with a wrench. For Grade 5 steel bolts, use a torque wrench to avoid over-tightening. Apply anti-seize if needed for future removal. Always follow manufacturer guidelines for load ratings.