10-32 Threaded Screw – ICACSS02BK – out of date
10-32 strings are verifiably the first rack screw type. The term 10-32 comes from Unified and American Screw Threads for Bolts, Nuts, and Machine Screws principles distributed by ANSI B1.1-1974. The number "10" is essentially a size designator. The number "32" alludes to the 32 strings for each inch. You can recognize a 10-32 screw by estimating the measurement with a ruler at precisely 3/16″ (0.1875″).
