LINDSTROM Carriage Bolts: Square Neck, 3/8"-16 Thread Size, 2 1/2 in lg, Steel, Grade 5

LINDSTROM Grade 5 Steel Square Neck Carriage Bolts are used in heavy-duty fastening applications such as securing metal to wood or metal to metal in construction, machinery assembly, and material handling equipment. The square neck prevents rotation during tightening, making them ideal for structural joints.

These LINDSTROM carriage bolts have a 3/8"-16 thread size, 2 1/2 in length, Grade 5 steel construction, and a zinc-plated finish for corrosion resistance. The square neck design locks into place during installation. MPN is CAI50370250GEO321+-001P.

3G Electric supplies LINDSTROM Grade 5 Steel Square Neck Carriage Bolts worldwide. We handle full logistics, customs clearance, and delivery to your site. As a global industrial solutions provider, we source across 14 departments — including specialist expertise in combustion, pumps and controls — to get you the right fastener.

Insert the bolt through a pre-drilled hole matching the square neck profile to prevent spinning. Use a washer and nut on the opposite side, then tighten with a wrench on the nut. For Grade 5 steel bolts, apply moderate torque; avoid over-tightening to prevent thread stripping. Zinc plating resists corrosion in indoor environments.