1/4-20 X 3-1/2″ Carriage Bolts Steel Black Oxide & Oil (500 / Pkg.) Best Seller

1/4-20 X 3-1/2″ Carriage Bolts in Steel Black Oxide & Oil. Carriage bolts feature a smooth, rounded head with a square neck underneath that pulls into the material to prevent the bolt from turning during installation, making them ideal for wood-to-wood and wood-to-metal connections.

Domed head with square anti-rotation neck

Steel Black Oxide & Oil construction

Coarse thread for use in wood and with nuts and washers

Sold in bulk packs

Specifications

Thread Size: 1/4-20

Length: 3-1/2″

Threads Per Inch: 20

Material: Steel

Finish: Black Oxide & Oil

Pack Quantity: 500