TEK Screw/Self Drilling Screw, with 7/16" Head, Serrated, Zinc Plated
                       
 
                       
  A W B H U Point  
Size Max Min Min Max Min Max Min Min Milled Point  
#8-18 1/4" AF              
#10-16 5/16" AF              
1/4-20

.437

.429

.481

.590

.551

.190

.172

.029

#2

1/4-14

.437

.429

.481

.590

.551

.190

.172

.029

#3

5/16-12

.437 .429 .481 .590 .551 .229 .208 .029

#4