Data Sheet

06
179
UNC
Ø1
L1
L2
Ø2
HSSE
Co 5
HSSE
Co 5
60°
4
HSSE
Co 5
UNF
C
2B
Main application Other application
Thread: American UNF fine thread
Flanks: relief-ground
Packing unit: individual plastic pack
Steel (N/mm2) < 800
Steel (N/mm2) < 1000
Steel (N/mm2) < 1200
Rust-resistant steel
Aluminium
Brass
Bronze
Plastics
Cast iron
Titanium alloyed
Nominal
thread size UNF
Threads
per inch
Thread core hole
Ø1 mm
L1
mm
L2
mm
Ø2
mm
Nr. 4 48 2,40 56,0 5,5 3,5 266 040 UNF 1
Nr. 5 44 2,70 56,0 6,0 3,5 266 050 UNF 1
Nr. 6 40 2,95 56,0 7,0 4,0 266 060 UNF 1
Nr. 8 36 3,50 63,0 7,5 4,5 266 080 UNF 1
Nr. 10 32 4,10 70,0 8,0 6,0 266 100 UNF 1
Nr. 12 28 4,60 70,0 9,0 6,0 266 120 UNF 1
1/4 28 5,50 80,0 10,0 7,0 266 014 UNF 1
5/16 24 6,90 90,0 10,0 8,0 266 516 UNF 1
3/8 24 8,50 100,0 10,0 10,0 266 038 UNF 1
Nominal
thread size UNF
Threads
per inch
Thread core hole
Ø1 mm
L1
mm
L2
mm
Ø2
mm
7/16 20 9,90 100,0 13,0 8,0 266 716 UNF 1
1/2 20 11,50 100,0 13,0 9,0 266 012 UNF 1
9/16 18 12,90 100,0 15,0 11,0 266 916 UNF 1
5/8 18 14,50 100,0 15,0 12,0 266 058 UNF 1
3/4 16 17,50 110,0 17,0 14,0 266 034 UNF 1
7/8 14 20,50 140,0 17,0 18,0 266 078 UNF 1
1" 12 23,25 150,0 20,0 18,0 266 010 UNF 1
Machine taps UNF HSSE-Co 5,
ground
Schematic illustration. Smaller diameters can be supplied with a tip for production reasons.
Machine taps with reinforced shank and 35° right-hand spiral flutes
for bottoming.
Machine taps with overflow shank and 35° right-hand spiral flutes
for bottoming.