Thread diameter 40mm, Screw pitch 3mm. Wheel balancer quick release wing nut. Fits , launch wheel balancers and more. This is a high quality balancer quick release wing nut for use with many wheel balancers. This Quick Nut is made of materials and helps the balancing process with it quick release threads that allow the wingnut to and out of position when the release lever is pressed. It fits many model Balancers with 40mm diameter shafts. Fits following models with 40mm shafts : Corghi : All models with 40mm shaft or 2007 and later Accuturn: 5500 , 5600 , 5800 , 6000, (5100 check serial S: 51-0623 Thru 51-1457) Atlas: most models with 40mm shaft Hunter: 700 , DSP9500 made between 1990 - 1992 : most models with 40mm shaft : Most Models with 40mm shaft : Most Models with 40mm shaft Colour: black Material: plastic Package Contents: 1 * Wheel Balancer Quick Release Wing Nut Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.