Data Sheet

06
177
UNC
Ø1
L1
L2
Ø2
HSSE
Co 5
HSSE
Co 5
60°
4
HSSE
Co 5
UNC
C
2B
Main application Other application
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.
Machine taps UNC HSSE-Co 5,
ground
Thread: American UNC coarse 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 UNC
Threads
per inch
Thread core hole
1 mm
L1
mm
L2
mm
Ø2
mm
Nr. 4 40 2,3 56,0 7,0 3,5 266 040 UNC 1
Nr. 5 40 2,6 56,0 7,0 3,5 266 050 UNC 1
Nr. 6 32 2,8 56,0 8,0 4,0 266 060 UNC 1
Nr. 8 32 3,5 63,0 8,0 4,5 266 080 UNC 1
Nr. 10 24 3,8 70,0 10,0 6,0 266 100 UNC 1
Nr. 12 24 4,5 70,0 10,0 6,0 266 120 UNC 1
1/4 20 5,1 80,0 13,0 7,0 266 014 UNC 1
5/16 18 6,5 90,0 14,0 8,0 266 516 UNC 1
3/8 16 8,0 100,0 16,0 10,0 266 038 UNC 1
Nominal
thread size UNC
Threads
per inch
Thread core hole
Ø1 mm
L1
mm
L2
mm
Ø2
mm
7/16 14 9,3 100,0 17,0 8,0 266 716 UNC 1
1/2 13 10,8 110,0 20,0 9,0 266 012 UNC 1
9/16 12 12,2 110,0 20,0 11,0 266 916 UNC 1
5/8 11 13,5 110,0 22,0 12,0 266 058 UNC 1
3/4 10 16,5 125,0 25,0 14,0 266 034 UNC 1
7/8 9 19,3 140,0 27,0 18,0 266 078 UNC 1
1" 8 22,2 160,0 30,0 18,0 266 010 UNC 1
Schematic illustration. Smaller diameters can be supplied with a tip for production reasons.