Imperial, Metric, Fine, Metric, Coarse, Inch, Metric
1/2"-13, #6-40, M10 x 1.50, M1.6x0.35, M2x0.4
5 1/4", 1 1/4", 80 mm, 2 7/8", 130 mm
Brass, Stainless Steel, Steel, Nylon, Plastic, Titanium
Low-Profile Standard, Standard, Ultra-Low-Profile Standard, Flanged Standard, Flanged Button
Phillips, Pozidriv, External Square, Slotted, Socket