Thread Measuring Gauge, Measures Washers, Bolts, Nuts, Overall Length 9 in, Width 3.8 in, Thickness 0.3 in, Material Plastic, Range 0 to 4 in, ID #8 to 5/8 in, Metric Gauge 6 to 22mm, Metric Length 0 to 100mm, USS and SAE #6 to 1 in, Product Type Measuring Gauge