Typ N Series 40 4050NX

Machine taps typ N for steel up to 800N/mm2 [For blind holes]
High precision machine tap with 40° spiral, metric, DIN 376, suitable for structural steels, cast steels, free cutting steels, spheroidal and malleable cast iron, aluminium alloys Si<10 %, long chipping copper alloys.

Product variants

ID D1 P Tolerance L1 L2 D2 a
042031318120000 M12 1,75 6H 110 18 9 7
042031318140000 M14 2 6H 110 20 11 9
042031318160000 M16 2 6H 110 20 12 9
042031318180000 M18 2,5 6H 125 25 14 11
042031318200000 M20 2,5 6H 140 25 16 12

Use

MACHINED MATERIAL HOLE TYPE CUTTING SPEED LUBRICATION USE
Aluminium alloys si content < 10% Blind hole (thread length L < 1,5xd1) 8-10 Cutting Oil/Emulsion Possible use
Aluminium alloys si content < 10% Blind hole (thread length L < 2xd1) 8-10 Cutting Oil/Emulsion Possible use
Aluminium alloys si content < 10% Blind hole (thread length < 1,5 d1, pilot drilling depth ≥ L+d1) 8-10 Cutting Oil/Emulsion Possible use
Aluminium alloys si content > 10% Blind hole (thread length L < 1,5xd1) 8-10 Cutting Oil/Emulsion Possible use
Aluminium alloys si content > 10% Blind hole (thread length L < 2xd1) 8-10 Cutting Oil/Emulsion Possible use
Aluminium alloys si content > 10% Blind hole (thread length < 1,5 d1, pilot drilling depth ≥ L+d1) 8-10 Cutting Oil/Emulsion Possible use
Free cutting steels up to 800 N/mm2 Blind hole (thread length L < 1,5xd1) 8-10 Cutting Oil/Emulsion Recommended use
Free cutting steels up to 800 N/mm2 Blind hole (thread length L < 2xd1) 8-10 Cutting Oil/Emulsion Recommended use
Free cutting steels up to 800 N/mm2 Blind hole (thread length < 1,5 d1, pilot drilling depth ≥ L+d1) 8-10 Cutting Oil/Emulsion Recommended use
Plain cast steels up to 500 N/mm2 Blind hole (thread length L < 1,5xd1) 8-10 Cutting Oil/Emulsion Recommended use
Plain cast steels up to 500 N/mm2 Blind hole (thread length L < 2xd1) 8-10 Cutting Oil/Emulsion Recommended use
Plain cast steels up to 500 N/mm2 Blind hole (thread length < 1,5 d1, pilot drilling depth ≥ L+d1) 8-10 Cutting Oil/Emulsion Recommended use
Plain cast steels up to 800 N/mm2 Blind hole (thread length L < 1,5xd1) 8-10 Cutting Oil/Emulsion Recommended use
Plain cast steels up to 800 N/mm2 Blind hole (thread length L < 2xd1) 8-10 Cutting Oil/Emulsion Recommended use
Plain cast steels up to 800 N/mm2 Blind hole (thread length < 1,5 d1, pilot drilling depth ≥ L+d1) 8-10 Cutting Oil/Emulsion Recommended use
Structural steels and heat-treated steels up to 800 N/mm2 Blind hole (thread length L < 1,5xd1) 8-10 Cutting Oil/Emulsion Recommended use
Structural steels and heat-treated steels up to 800 N/mm2 Blind hole (thread length L < 2xd1) 8-10 Cutting Oil/Emulsion Recommended use
Structural steels and heat-treated steels up to 800 N/mm2 Blind hole (thread length < 1,5 d1, pilot drilling depth ≥ L+d1) 8-10 Cutting Oil/Emulsion Recommended use
Structural steels up to 500 N/mm2 Blind hole (thread length L < 1,5xd1) 8-10 Cutting Oil/Emulsion Recommended use
Structural steels up to 500 N/mm2 Blind hole (thread length L < 2xd1) 8-10 Cutting Oil/Emulsion Recommended use
Structural steels up to 500 N/mm2 Blind hole (thread length < 1,5 d1, pilot drilling depth ≥ L+d1) 8-10 Cutting Oil/Emulsion Recommended use
Unalloyed aluminium Blind hole (thread length L < 1,5xd1) 8-10 Cutting Oil/Emulsion Possible use
Unalloyed aluminium Blind hole (thread length L < 2xd1) 8-10 Cutting Oil/Emulsion Possible use
Unalloyed aluminium Blind hole (thread length < 1,5 d1, pilot drilling depth ≥ L+d1) 8-10 Cutting Oil/Emulsion Possible use