Additional Information
Diameter and Thread Pitch Conversion Chart | |||||||
---|---|---|---|---|---|---|---|
National Coarse (NC) | 1-64 | 3-48 | 4-40 | 6-32 | 8-32 | 10-24 | 12-24 |
National Fine (NF) | 1-72 | 3-56 | 4-48 | 6-40 | 8-36 | 10-32 | 12-28 |
Metric (Approx) | M2 | M2.5 | M3 | M3.5 | M4 | M5 |
National Coarse (NC) | 1/4-20 | 5/16-18 | 3/8-16 | 7/16-14 | 1/2-13 | 9/16-12 | 5/8-11 | 3/4-10 | 7/8-9 |
National Fine (NF) | 1/4-28 | 5/16-24 | 3/8-24 | 7/16-20 | 1/2-20 | 9/16-18 | 5/8-18 | 3/4-16 | 7/8-14 |
Metric (Approx) | M6 | M8 | M10 | M12 | M14 | M15 | M20 | M22 |
National Coarse (NC) | 1 – 8 | 1-1/8 – 7 | 1-1/4 – 7 | 1-3/8 – 6 | 1-1/2 – 6 | 1-3/4 – 5 | 2 – 4.5 | 2-1/2 – 4 | 3 – 4 |
National Fine (NF) | 1 – 12 | 1-1/8 – 12 | 1-1/4 – 12 | ||||||
Unified Thread (UN) | 1-1/8 – 8 | 1-1/4 – 8 | 1-3/8 – 8 | 1-1/2 – 8 | 1-3/4 – 8 | 2 – 8 | 2-1/2 – 8 | 3 – 8 | |
Metric (Approx) | M24 | M30 | M32 | M36 |
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