Thread Identifier, Measures Inch and Metric Thread Pitches, Overall Length 21 in, Width 2.5 in, Material Stainless Steel, Range #1-72, #2-56, #2-64, #3-48, #3-56, #4-40, #4-48, #5-40, Identifiers 1-64, M1.6 x 0.20, M1.6 x 0.35, M1.8 x 0.35, M2 x 0.25, M2 x 0.4, M2.5 x 0.35, M2.5 x 0.45, M3 x 0.35, M3 x 0.50, M3.5 x 0.35, M3.5 x 0.6, M1.2 x 0.25, Product Type Thread Identifier, Maximum Wire Diameter 0.063 in, Wire Length 18 in