These are 01.00 inch Pan head screws designed in U.S.A. by CKK Industries, Inc. They are black oxide coated with Phillips drive. These screws are commonly used in holster attachment mountings, but are excellent for most general uses. They are heavy-duty, well finished, and are very hard to find in US conforming lengths and measurements.
Specifications
Head Type = Pan
Thread Length = 01.00 Inch (from under head)
Overall Length = 1.10 Inch (including head thickness)
Head Diameter = 0.312 Inch
Drive: Phillips
Coating: Black Oxide
Sold Individually
(1) QTY = (1) Screw