![]() ![]() ![]() * Values are calculated for Length of engagement of 5xPitch. * Permisable values for thread Class 2B # Description Value (Inch) Value (mm) D 1 Minor Diameter 0.91 - 0.928 23.114 - 23.571 D 2 Pitch Diameter 0.9459 - 0.9528 24.026 - 24.201 D Major Diameter 1.0000 (Min) 25.4 (Min) α Varation of 30° anngle (+/-) 0.9167 (Ref) 23.284 (Ref) P Varation of Pitch (+/-) 0.002 (Ref) 0.051 (Ref) Tap Drill Clearance Hole Drill 75 Thread 50 Thread All Materials Close Fit Free Fit Dia. Machining Calculators Raw Materials Carbide Grades Machining Charts Glossary G Code Home Login / Register Search for: Thread data sheet. * Permisable values for thread Class 3A # Description Value (Inch) Value (mm) es Allowance 0 (Ref) 0 (Ref) d Major Diameter 0.9886 - 1 25.11 - 25.4 d 2 Pitch Diameter 0.9419 - 0.9459 23.924 - 24.026 d 3 Minor Diameter Tap Drill Sizes Charts GLOSSARY G-CODES Main Menu. For calculations of different engagement length use the Thread Calculator Tap drill size size formulas are theoretical based on the thread type and desired percentage of thread. ![]()
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