Carriage Bolts, Grade 5, Zinc, Medium Carbon (inch)

Carriage Bolts, Grade 5, Zinc, Medium Carbon (inch)
Carriage Bolt
Typically used in wood construction, carriage bolts are fully threaded bolts with a square or ribbed shoulder under the round head.  The square or ribbed shoulder holds the bolt from turning when assembled with a nut to secure.

Grade 5 carriage bolts are made of medium carbon steel with specifications governed by the Society of Automotive Engineers (SAE).  They are identified by three destinct markings on the head of the bolt as shown below.

Grade 5 Carriage Bolt Markings

Zinc plating provides added protection against corrosion.  

For more information about carriage bolts, please contact us at 877-791-4426.

Back to top
AALL AMERICAN Fasteners now offers online purchasing:  Fittings, Valves, Hose Clamps & Accessories.

Click here for Made in America Fittings.