Stub Acme Thread Gage We provide general-purpose acme, Centralizing acme, Stub-acme thread gauge, GO NO GO, and ring gauge. Stub acme threads have the same fundamental design as standard acme threads, but with a tread depth of less than half the pitch. If an acme nut has a radial load on one side. Visit our website for more information. https://www.gaugestools.com/acme-thread-gauges/