Screw diameter #
4-20
Screw length L (inch)
1/4
Tolerance L (inch)
-0.03
Head diameter D (inch)
0.219
Tolerance D (inch)
0 -0.014
Head height K (inch)
0.080
Tolerance K (inch)
0 -0.01
Recess
PHILLIPS 1
Breaking torque (Lb-ins.)
11.5
Core hardness (HV)
327-352
Surface hardness (HV)
min. 336
Units per bag
2500
Outer box units
25000
GTIN
8425586587974
Weight (kg/th)
0.460
Weight (lb/th)
1.014
Thread pitch P (inch)
0.05
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.