This standard specifies the type and size of the ring gauge for detecting the gap and misalignment between the two legs of the spl

This standard specifies the type and size of special calipers for detecting the minor diameter of wood screw threads. This standar

This standard specifies the type and size of the go and stop gauges for testing the circumscribed circle diameter of self-tapping

This standard specifies the type and size of the test die for testing the straightness of bolts, screws and other screws. This sta

This standard specifies the thread type and size of the verticality inspection gauge for testing the verticality between the nut b

This standard specifies the type and size of the thickness gauge for testing the thickness between the bottom of the slotted femal

This standard specifies the types and sizes of the slot depth gauges for screws, wood screws and self-drilling screws. This standa

This standard specifies the types and sizes of plug gauges for detecting the slot width of screws, nuts, wood screws, self-tapping