
THREADING Pitch / Lead [inch] Pitch / Lead [inch] 5/8 3/4 1/8 1 1 1/81/64 1 1/41/32 1 3/81/16 1 1/23/32 1 5/81/85/32 1 3/43/16 27/32 2 1/41/4 5/16 2 1/2 3/8 2 3/47/16 31/2 3 1/4 9/16 3 1/2 3 3/4 5/8 4 4 1/43/4 4 1/2 4 3/4 5 USER GUIDE Helix (Lead) angle area by using graph Helix angle evaluation φ(φL) φ(φL) φ(φL) φ(φL) T.P.I2 5° 4° 3° 2° 3 φ(φL) 1° 4 4.5 5 6 7 8 9 10 11.5 11 12 Diameter [inch] Detailed view for small pitch/diameter T.P.I φ(φL) φ(φL) φ(φL) φ(φL) 13 5° 4° 3° 2° 14 16 18 φ(φL) 19 1° 20 22 24 26 28 27 32 36 40 44 48 6072 5664 80 Diameter [inch] 718 ISCAR