Flange Diameter .562, Head Width .375", Head Height .375" Alloy Steel 12 Point Partially Threaded Bolts, 3/8-16 x 1.75" Length Alloy Steel 12 Point Partially Threaded Bolts, 3/8-16 x 1 3/4" Length

Head height includes the flange. Length is measured from under the flange.