Carriage Bolts

Low Carbon & Hot-Dip Galvanized Carriage Bolt

Description

Low Carbon Steel Carriage: Round head with a square neck under the head, and a unified thread pitch. Made from low or medium carbon steel.

Hot Dip Galvanized Steel Carriage: Carriage bolt made from low or medium carbon steel with a galvanic zinc finish applied

Applications / Advantages

Low Carbon Steel Carriage: The square neck is designed to keep the bolt from turning as a nut is tightened. Hot Dip Galvanized Steel Carriage: Same design advantages as a low carbon carriage bolt but with a thicker protective coating for outdoor use. Often used in outdoor furniture.

Material

Low Carbon Steel & Hot Dip Galvanized Steel Carriage: AISI 1006 - 1050 or equivalent steel

Grade 5 Carriage Bolt

Description

Carriage bolt made from medium carbon steel.

Applications / Advantages

Same design as a low carbon bolt but with significantly greater load carrying capacity.

Material

AISI 1030 - 1050 or equivalent steel.

Carriage Bolt - Stainless Steel. 18-8

Description

Round head bolt with a square neck under the head, and a unified pitch, made from austenitic alloy stainless steel.

Applications / Advantages

Same design advantages as a low carbon bolt but for use in environments which require general atmospheric corrosion resistance.

Material

18-8 stainless carriage bolt are made from one of the following austenitic alloys: 302 HQ, 303, 303Se, 304, XM7, all of which are characterized as having a chromium content of 17-19% and nickel content of 8-10%.