This easy to read gauge is made from tough ABS plastic and provides a quick and easy way to measure the size of nut, bolts, and screws. It is suitable for use on both metric and imperial fixings and can also be used to determine whether a nut is UNC or UNF, taking the trial and error away from selecting the correct replacement size.
Nut bolt screw gauge multifunction tool which helps the user to check sizes & threads including metric & imperial, removing the guesswork in selecting the correct size fixings.
Measurements include: internal diameter of UNC & UNF nuts; diameter of metric & imperial bolts; length of rounded, pan, countersunk, set screws, together with hex head bolts; reference chart for hex cap screws.
Manufactured from tough wear resistant ABS plastic.
Suitable for mechanics, classic car restorers, plumbers, DIY etc.