A database which provides instant access to detailed dimensional information for 1100+ screw threads from the following types - UNC, UNF, UNEF, UNJ, UNJC, UNJF, UNJEF, UN, UNS, BUTTRESS, UNM, STI, ACME, STUB ACME, NPT, NPTF, NPSM, NPSL, ISO, BSW, BSF
