Finish: Zinc-Flake Coated, Anodized Material: Brass, Stainless steel, Steel, Aluminium, Plastic, Titanium, Nylon, Stainless Steel Measurement system: INCH Head Style: Round Place of Origin: Guangdong, China Brand Name: BERGEK Model Number: OEM Standard: customized Product name: nonstandard fastener male and female screw Head type: Mushroom head Color: Silvery Black or other customezied color Size: M1-M6