HSS-EV UNF Blue Ring Spiral Point/Gun Nose Tap - Bright Finish - DIN 374
Spiral Point/Gun Nose - UNF
• HSS-EV Oxidised Finish
• UNF - Unified National Fine
• Bright Finish
• Taper lead to DIN form B (3.5 x P to 5.5 x P)
• Tapping tolerance to 2B
• Manufactured to DIN 374
• For through holes
• Tapping tolerance to 6HX.
| Code | Size - Pitch (mm) | (d2) Shank Diameter |
Square Width | (l1) Overall Length |
(l2) Thread Length |
Number of Flutes |
| SWT1853210B | 1/4" x 28 | 4.5 | 3.4 | 80 | 17.0 | 3 |
| SWT1853211B | 5/16'' x 24 | 6.0 | 4.9 | 90 | 22.0 | 3 |
| SWT1853212B | 3/8'' x 24 | 7.0 | 5.5 | 90 | 22.0 | 3 |
