| Thread
Dia.
D1 | Pitch | Thread Form | Thread
Length
L2 | Overall
Length
OAL | Shank
Dia
D2 | Square
Sq | Tapping
Drill
Dia. |
| M4 | 0.7mm | Metric Coarse | 13mm | 63mm | 4.5mm | 3.4mm | 3.7mm |
Flute Type: Thread Forming/Fluteless
Recommended for: Forming Threads in materials with at least 10% elongation
Shank Standard: DIN 371
Type: High speed steel Cobalt (HSSE)
Coating: TiAlN (Titanium Aluminium Nitride) - This is a special coating for machining abrasive materials such as Grey cast iron, Al-alloys with silicon, fibre reinforced plastics, etc., or machining under high temperatures, such as insufficient coolant or high speeds> 600m/min. TiAlN coating has a hardness of approx. 3,000 HV and is temperature resistant up to approx. 800°C.
Colour: Violet Grey Coefficient of friction against steel: 0.4
Tapping Materials
Excellent for tapping: All General Steels; Unalloyed Titanium; Unalloyed Nickel; Unalloyed Copper; and Unalloyed Aluminium
Good for tapping: Long Chipping Copper Alloys; and Aluminium with Silicone content 0.5-10%
