1mm to 68mm
ISO Screw thread ring gauges are manufactured to BS 3643-007 and BS 919: part 3-2007.
Standard gauges are manufactured to class 6g (Medium fit) and comprise a Go gauge ring which checks the Major and Effective diameters are to specification and not oversize, at the same time checking the pitch and flank geometry. The No Go gauge ring checks the Effective diameter to ensure it is not undersize.
UNC, UNF, BA, BSP, BA, BSW and BSF Thread Gauges can supplied against special order.
Option:
• UKAS Certification
