Общий каталог ZCC-CT 2019 - страница 413

Threading System overview Internal thread External thread A Thread types Profile Sectional drawing Insert pitch [mm] pitch [mm] Page Me Turning API American buttress thread BUT 3 o 5 5 A430 o o 90 10 ISO metric coarse thread 60° GM 0,5-3,0 0,5-3,0 A431 B full profile (thin type) 60o Milling ISO metric coarse thread 60° 60° 0,5-3,0 (8-48) 0,5-3,0 (8-48) A432 partial profile (thin type) 55o C ISO metric coarse thread 55° partial profile (thin type) 55° 0,5-3,0 (8-48) 0,5-3,0 (8-48) A433 Drilling Whitworth (thin type) W 8-16 8-16 A434 D UN unified conventional thread 60° full profile (thin UN 8-24 8-20 A435 type) Information Technical BSPT Whitworth taper pipe BSPT 11-28 11-28 A436 thread (thin type) o 1 47’ E o o 30 30 NPT American taper pipe NPT 8-27 8-27 A437 thread (thin type) Index o o 90 1 47’ A 408