Screw diameter #
4-40
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 -0.010
Recess
PHILLIPS 1
Breaking torque (Lb-ins.)
14.0
Core hardness (HV)
286-372
Surface hardness (HV)
min. 446
Units per bag
2500
Outer box units
20000
GTIN
8425586587097
Weight (kg/th)
0.600
Weight (lb/th)
1.323
Thread pitch P (inch)
0.71
In order to ensure a safe installation and stable clamping force, it's relevant to pay attention to the pilot hole diameter. The recommended dimensions for core hole diameter and length of engagement are available at Design Guidelines.