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: Steam Tempered VAP - The Steam Tempered is a Fe3O4-oxyd-coating which reduces the friction between tool and workpiece and prevents cold welding.
Tapping Materials
Excellent for tapping: Stainless Steels & Carbon Steels with low alloy content Rm<600N/mm2
Good for tapping: Heat resistant alloys & Titanium Alloys <270HB