Lead=L=n pFigure 8-1Terminology of screw threads. Sharp Vee Threads shown for clarity; the crests and roots are actually flattened or rounded during the forming operation
A.N.KHUDAIWALA (L.M.E) G.P.PORBANDAR
Thread profiles.
a) Square (b) ACME; (c) UN, ISO
(c)
A.N.KHUDAIWALA (L.M.E) G.P.PORBANDAR
(a) Single (STANDARD)-, (b) double-, and (c) triple threaded screws.
Text Reference: Figure 15.2, page 667
Power screw thread forms. [Note: All threads shown are external (i.e., on the screw, not on the nut); dm is the mean diameter of the thread contact and is approximately equal to (d + dr)/2.]
A.N.KHUDAIWALA (L.M.E) G.P.PORBANDAR
A.N.KHUDAIWALA (L.M.E) G.P.PORBANDAR
Figure 15.5 Details of ACME thread profile. (All dimensions are in inches.)