| Manufacturer Part Number | ST502 |
| Thread Size (Inch) | 3/8" |
| Thread Size (Decimal Inch) | 0.375" |
| Thread Size (mm) | 9.53mm |
| Threads per Inch (TPI) | 24 |
| Thread Series | UNF |
| Pitch Limit | 2B |
| Chamfer Type | Bottoming |
| Chamfer Length | 1.5P-2P |
| Overall Length (Decimal Inch) | 3.160" |
| Overall Length (mm) | 80.26mm |
| Thread Length (Decimal Inch) | 0.866" |
| Thread Length (mm) | 22.00mm |
| Square Length (Decimal Inch) | 0.410" |
| Square Length (mm) | 10.41mm |
| Shank Diameter (Decimal Inch) | 0.323" |
| Shank Diameter (mm) | 8.20mm |
| Square Size (Decimal Inch) | 0.242" |
| Square Size (mm) | 6.15mm |
| Neck Diameter (Decimal Inch) | 0.311" |
| Neck Diameter (mm) | 7.90mm |
| Drill Size (Decimal Inch) | 0.389" |
| Drill Size (mm) | 8.87mm |
| Connection Size (Decimal Inch) | 0.323" x 0.242" |
| Connection Size (mm) | 8.20 x 6.15mm |
| Usable Length (Decimal Inch) | 1.440" |
| Usable Length (mm) | 36.58mm |
| Length / Diameter | 3.0 x D |
| Number of Flutes | 3 |
| Helix Angle (Degree) | 40 Degree |
| Coating | Hardslick |
| Material | HSS-E |
| Blank Standard | 322 |
| Series | ST |
| Product Type | Spiral Flute Tap |
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