1.4D(d) is the basic major diameter of an internal (external) thread, D1(d1) is the basic minor diameter of an internal (external) thread, D2(d2) is the basic pitch diameter, and H = 0.5(3)1/2p. Sign in to download full-size image Figure 1.4. Metric threads are specified ...
Minor Diameter is the smallest material diameter of a thread or gear tooth feature. Pitch Diameter is a diameter between the major and minor diameter where the medium area contact with the associated thread or gear occurs.RelatedANSI External Screw Threads Size Chart Unified Screw Threads per. ANS...
ASME B1.1-1989, ASME B1.7M, etc., are very confusing (which implies poorly written, so even though they are a USA standard, I can't recommend them as a "good" reference), and I could not find an exact formula for "minimum minor diameter" for external threads. ...
I tapped the original Morris gear shift knob for metric threads, and it screwed onto the Datsun gear lever. Looks stock inside and out now, no one would guess there’s a different transmission (or engine) underneath.Driveshaft and Rear End...