jauge pas de vis

listen to the pronunciation of jauge pas de vis
الفرنسية - الإنجليزية
thread pitch gauge
(Mühendislik) Threading gauges, pictured on the right, are also referred to as pitch gauges and are used to measure the pitch or lead of screw threads. The uppermost gauge in the image is an ISO metric pitch gauge, the larger gauge in the center is for measuring the Acme Thread Form, and the lower gauge is for imperial screws
pas de vis
{n} screw thread