"UNF": N06-32 * N08-32 * N10-24 * N12-24 * 1/4-20 * 5/16-18 * 3/8-16 *- 7/16-14 * 1/2-13 * 1/2-12 * 9/16-12 * 5/8-11 * 3/4-10 * 7/8-9 * 14-8 * 1"1/8-7 * 1"1/4-7 * 6-40 * 8-36 * 10-32 * 12-28 * 1/4-28 * 5/16-24 * 3/8-24 * 7/16-20 * 1/2-20 * 9/16-18 * 5/8-18 * 3/4-16 * 7/8-14 * 1"-12 * "GAS": 1/8 * 1/4 * 3/8 * 1/2 * 3/4" * 1". Altre misure o passi diversi disponibili su richiesta: BSP - Withovart, BSF, NPT, BSPT.