HSS-EV UNF Blue Ring Spiral Flute Tap - Bright Finish - DIN 374
Spiral Flute (BLF) - UNF
• HSS-EV Oxidised Finish
• UNF - Unified National Fine
• Bright Finish
• Taper lead to DIN form C (3 x P)
• Tapping tolerance to 6H
• Manufactured to DIN 374
• For shorter blind holes
Code | Size - Pitch (mm) | (d2) Shank Diameter |
Square Width | (l1) Overall Length |
(l2) Thread Length |
Number of Flutes |
SWT1853239B | No.10 x 32 | 3.5 | 2.7 | 70 | 16.0 | 3 |
SWT1853241B | 1/4" x 28 | 4.5 | 3.4 | 80 | 17.0 | 3 |