Screw diameter #
2-28
Screw length L (inch)
1/4
Tolerance L (inch)
-0.03
Head diameter D (inch)
0.167
Tolerance D (inch)
0 -0.012
Head height K (inch)
0.062
Tolerance K (inch)
0 -0.01
Recess
PHILLIPS 1
Breaking torque (Lb-ins.)
4.5
Core hardness (HV)
327-352
Surface hardness (HV)
min. 336
Units per bag
5000
Outer box units
55000
GTIN
8425586587936
Weight (kg/th)
0.230
Weight (lb/th)
0.507
Thread pitch P (inch)
0.071
plastite-at51h-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