iEngineer!

iEngineer is the most comprehensive database of screw/bolt information that you can find anywhere. US screws:-93 different screws from #0 to 4-Dimensions for 9 standard head styles-74 material grades including SAE, ASTM, and other materialsMetric Screws (available as in-app purchase):-210 different metric screws from M1.0 to M100-Dimensions for 10 standard head styles for ISO, DIN, BS, and ANSI standards where available-86 material grades including 12 additional metric grades, SAE, ASTM, and other materialsDisplayed values for both the US and Metric screws include:-Standard dimensions-Tap sizes-Clearance hole sizes-Material strength-Recommended torque values-Clamp force-Shear force-Head markings display-3D model of head type-Standard dimensions of head typeOther features:-Drill chart with 523 drill bit sizes-Fraction chart-Copy and paste data values-Fast and easy unit conversion-Ability to show/hide material grades in the interface so you only see what is relevant to youIf you have any questions please contact us at [email protected]