Standard Drill Diameter for Roll Form Threads
| Thread Size |
Drill Size (D1) |
55% Thread Engagement |
65% Thread Engagement |
75% Thread Engagement |
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Standard Core Diameter for Roll Form Threads
| Thread Size |
Core Size (D1) |
Core Size (D2) |
Thread Depth Y, Max |
Hole Depth X, Max |
Draft Z°/SIDE |
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