Overall lengthThread lengthThread+Neck lengthShank lengthShank dia.Size of squareLength of square
LℓnℓsDsKℓk
N-RZ Thread Forming Taps forSteels
SizeClassCodeChamferL (inch)ℓ (inch)ℓn (inch)ℓs (inch)Ds (inch)K (inch)ℓk (inch)LobeType
1/2-20UNFH5 H7RSU08N5HEXP RSU08N5HEXB RSU08N7HEXP RSU08N7HEXB4P 2P 4P 2P4.3311.024-2.2050.3670.2750.43784