1/2-13 x 1-1/4 Inch Coarse Black Oxide Medium Carbon Steel 12 Point Counterbore Bolt Best Seller A smooth cobalt blue coating

A smooth cobalt blue coating that enables tool and die makers to scribe accurately without glare

12-24 3/8 PHIL FH UNDERCUT

5/8 x 10 Strong Bolt 2 Wedge Style Expansion Anchor Zinc Plated Carbon Steel

039 Inch x 5/16 Inch Tip 2-3/4 Inch Length Gunmetal Gray Steel Power Bit

1/2-13 x 1-1/4 Inch Coarse Black Oxide Medium Carbon Steel 12 Point Counterbore Bolt Best Seller A smooth cobalt blue coatingCounterbore screws are threaded fasteners that are designed for use in counterbored holes. A counterbored hole is essentially a pilot hole consisting of a long and narrow threaded channel at the bottom and a shallower but wider channel at the top.