5/16" x 3-1/2", Zinc plated grade 5, US, Carriage

US Fasteners, 5/16" x 3-1/2", Zinc plated grade 5, Carriage
Carriage bolts & Plow bolts Bolts with no drive and machine threads for use with a nut.

US Fasteners, 5/16" x 3-1/2", Zinc plated grade 5, Carriage

Bolts with no drive and machine threads for use with a nut.