Thread Dia. D1 | Pitch | Thread Form | Thread Length L2 | Overall Length OAL | Shank Dia D2 | Square Sq | Tapping Drill Dia. |
5/16 | 18 | UNC Unified National Coarse | 20mm | 90mm | 8mm | 6.2mm | 6.6mm |
Flute Type: Spiral Point
Recommended for: Through Holes
Shank Standard: DIN 371
Type: High speed steel cobalt (HSSE) tap.
Coating: None - Bright Finish - Uncoated for excellent results in softer materials.
Tapping Materials
Excellent for tapping: All General Steels; All Cast Irons & Nodular Graphite; Unalloyed Titanium; Unalloyed Nickel; and All forms of Aluminium Si<10%.
Good for tapping: Alloy Steels; All Stainless Steels; some Nickel & Titanium Alloys.
For speeds please click the "Specifications" tab above. |