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Spiral flute tap with chamfer form C with a 2-3xP semi-bottoming lead, for Unified National Coarse thread UNC 5/16" with 18 TPI and 3B class of fit with H3 pitch diameter limits, dimensions according to ANSI standard with 0.3180" shank and 0.2380" square drive, powder metallurgical HSS-E with steam tempered surface finish and 45° helix angle for 2.5xD blind hole threading in general purpose applications.
Product Specifications
| Connection Diameter (Inch) | 0.318" |
| Overall Length (Inch) | 2.7188" |
| No of Flutes | 3 |
| Flute Helix Angle | 45 |
| Usable Length (Inch) | 1.3094" |
| Thread Diameter Size | 5/16 |
| Material Code | HSS-E-PM |
| Thread Tolerance Class | 3B |
| Threading Length (Inch) | 0.4567" |
| Cutting Direction | Right Hand |
| Coating | Steam Tempered |
| Tap Chamfer Style | C 2-3 |
| Surface Color | Black |
| Thread Form | UNC-Unified Coarse |
Warning:
This product can expose you to materials and/or chemicals including arsenic, lead, and other materials and/or chemicals which are known to the state of California to cause cancer and/or reproductive harm.
For more information, visit www.P65Warnings.ca.gov
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