Square Head Lag Bolts

Blacksmith Bolt offers the largest collection of these classic square head lag bolts, which we offer in plain steel and black oxide. We have them made for us with no unsightly head marks.

We offer them in sizes from 1/4" thru 3/4"

1/4" Square Head Lag Bolts

5/16" Square Head Lag Bolts

3/8" Square Head Lag Bolts

1/2" Square Head Lag Bolts

5/8" Square Head Lag Bolts

3/4" Square Head Lag Bolts

7/8" and larger Square Head Lag Bolts

Stainless Steel Square Head Lag Bolts