oll TapOverall length LThread length ℓThread+Neck length ℓnShank length ℓsShank dia. DsSize of square KLength of square ℓk
N-RZ Thread Forming Taps forSteels
SizeClassCodeChamferL (inch)ℓ (inch)ℓn (inch)ℓs (inch)Ds (inch)K (inch)ℓk (inch)LobeType
No.10-24UNCH6RSUNAM6HEXP RSUNAM6HEXB4P 2P2.7560.5510.9841.6540.1940.1520.2542
No.10-32UNFH4 H6RSUNAJ4HEXP RSUNAJ4HEXB RSUNAJ6HEXP RSUNAJ6HEXB4P 2P 4P 2P2.7560.5510.9841.6540.1940.1520.2542
No.12-24UNCH4 H6RSUNCM4HEXP RSUNCM4HEXB RSUNCM6HEXP RSUNCM6HEXB4P 2P 4P 2P3.150.5910.9841.9290.220.1650.28142
No.12-28UNFH4 H6RSUNCK4HEXP RSUNCK4HEXB RSUNCK6HEXP RSUNCK6HEXB4P 2P 4P 2P3.150.5910.9841.9290.220.1650.28142
1/4-20UNCH4 H6RSU04N4HEXP RSU04N4HEXB RSU04N6HEXP RSU04N6HEXB4P 2P 4P 2P3.150.5911.1811.7130.2550.1910.31242
1/4-28UNFH4 H6RSU04K4HEXP RSU04K4HEXB RSU04K6HEXP RSU04K6HEXB4P 2P 4P 2P3.150.5911.1811.7130.2550.1910.31242
5/16-18UNCH5 H7RSU05O5HEXP RSU05O5HEXB RSU05O7HEXP RSU05O7HEXB4P 2P 4P 2P3.5430.7481.3781.8310.3180.2380.37563
5/16-24UNFH5 H7RSU05M5HEXP RSU05M5HEXB RSU05M7HEXP RSU05M7HEXB4P 2P 4P 2P3.5430.7481.3781.8310.3180.2380.37563
3/8-16UNCH5 H7RSU06P5HEXP RSU06P5HEXB RSU06P7HEXP RSU06P7HEXB4P 2P 4P 2P3.9370.9061.5352.0280.3810.2860.43763
3/8-24UNFH5 H7RSU06M5HEXP RSU06M5HEXB RSU06M7HEXP RSU06M7HEXB4P 2P 4P 2P3.9370.9061.5352.0280.3810.2860.43763
7/16-14UNCH5 H7RSU07Q5HEXP RSU07Q5HEXB RSU07Q7HEXP RSU07Q7HEXB4P 2P 4P 2P3.9370.906-2.0080.3230.2420.40684
7/16-20UNFH5 H7RSU07N5HEXP RSU07N5HEXB RSU07N7HEXP RSU07N7HEXB4P 2P 4P 2P3.9370.906-2.0080.3230.2420.40684
1/2-13UNCH5 H7RSU08R5HEXP RSU08R5HEXB RSU08R7HEXP RSU08R7HEXB4P 2P 4P 2P4.3311.024-2.2050.3670.2750.43784