Skip to content

5/16"-18 x 1" Zinc Plated Grade 5 Steel Coarse Thread Carriage Bolts

SKU: 07489
5/16"-18 x 1" Zinc Plated Grade 5 Steel Coarse Thread Carriage Bolts

5/16"-18 x 1" Zinc Plated Grade 5 Steel Coarse Thread Carriage Bolts

SKU: 07489
Box Size: 100 pcs.
Regular price $3093
Shipping calculated at checkout.

Carriage bolts feature a smooth, rounded head and a square shoulder beneath it that grips the material to prevent spinning while the nut is tightened.

Nominal Size: 5/16"
Thread: 18 TPI (Coarse)
Length: 1"
Thread Length: Full
Material: Steel
Finish: Zinc
Head Style: Carriage
Hardness: Grade 5
Type: Carriage Bolt
Square-Depth: 3/16"
A carriage bolt has a domed or countersunk head, and the shank is topped by a short square section under the head. The square section grips into the part being fixed (typically wood), preventing the bolt from turning when the nut is tightened.