Screw diameter (mm)
4.0
Screw length L (mm)
20
Tolerance L (mm)
±0.65
Head diameter D (mm)
7.00
Tolerance D (mm)
0 -0.36
Head height K (mm)
3.10
Tolerance K (mm)
0 -0.30
Recess
TORX® T20
Breaking torque (Nm)
2.80
Core hardness (HV)
300-370
Surface hardness (HV)
min. 336
Units per bag
5000
Outer box units
5000
GTIN
8425586581255
Weight (kg/th)
1.730
Thread pitch P (mm)
1.80
celospark-sp81t-screw-drawing

In order to ensure a safe installation and stable clamping force, it's relevant to pay attention to the boss design. The recommended dimensions for core hole diameter and length of engagement are available at Design Guidelines.

Go to Design Guidelines