These are 1/2 inch flat top truss head screws designed in U.S.A. by CKK Industries, Inc. They are black oxide coated with Phillips drive. These screws are commonly used for holster hardware replacements, but are excellent for most general uses. These screws are heavy-duty, well finished, and are very hard to find in US conforming lengths and measurements.
Specifications
Head Type = "Flat Top" Truss Head
Length = 0.500 Inch (from under head)
Overall Length = 0.591 Inch (including head thickness)
Head Diameter = 0.400 Inch
Drive: Phillips
Coating: Black Oxide
Sold Individually
(1 QTY = 1 Screw)