16 mm, 5/32", 1 5/8", 9/16", 1/4"
Steel, Alloy Steel, Brass, Steel, Nylon, Plastic, Titanium
Flanged Button, Flanged Standard, Low-Profile Standard, Flat, Ultra-Low-Profile Standard
Plain, Black Oxide, Advanced Corrosion Resistance, Blue Phosphate, Zinc Plated
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