Skip to content

Free shipping on orders $100 and up!

5/16"-18 x 2-1/4" Zinc Plated Grade 2 / A307 Steel Coarse Thread Carriage Bolts

Type: Carriage Bolts
Part Number: 01077
Original price $22.03 - Original price $22.03
Original price
$22.03
$22.03 - $22.03
Current price $22.03

Diameter: 5/16"
Length: 2-1/4"
Material: Steel
Finish: Zinc
Head Style: Carriage
Thread Size: 18 (Coarse)
Thread Length: Full
Hardness: Grade 2 / A307
Type: Carriage Bolt
Square-Depth: 3/16"

Box of 100.

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.