SERRATED FLANGE 
Part # 
LOCK NUTS 
2 
Size 
USS 
SAE 
Qty 
HARDENED STEEL 
#6 
— 
100 
Plating: Zinc 
#8 
— 
100 
» 
The serrated flange on these nuts 
#10 
100 
grip better and hold longer. 
1/4 
100 
» 
Because the flange distributes the 
5/16 
100 
load over a greater area, nuts require 
3/8 
100 
more torque to remove than to install. 
7/16 
50 
» 
The flange also covers oversized 
1/2 
50 
holes. 
5/8 
— 
25 
» 
Nuts are reusable. 
3/4 
— 
25 
FLANGE STYLE STOVER LOCK NUT 
FOR USE WITH GRADE 8 FRAME BOLTS 
Black Phosphate & Oiled 
Size 
Part # 
Qty 
3/8-16 
50 
7/16-14 
25 
1/2-13 
25 
5/8-11 
25 
3/4-10 
10 
Part # 
PREVAILING TORQUE 
Size 
USS 
SAE 
Qty 
LOCKNUTS 
1/4 
100 
ONE PIECE - GRADE C 
5/16 
100 
Plating: Zinc & Waxed 
3/8 
100 
7/16 
100 
1/2 
100 
» 
Top of nut is compressed to form an 
9/16 
50 
oval-shaped locking zone. 
5/8 
25 
» 
Provides a 360° locking zone. 
3/4 
25 
» 
Nuts twist freely on a bolt or stud until 
7/8 
10 
they make contact with the locking 
1 
10 
zone. 
1-1/8 
5 
» 
Use ASTM A563 Grade C nuts with 
1-1/4 
5 
Grade 8 bolts for high-strength 
1-3/8 
— 
5 
applications. 
1-1/2 
— 
5 
» 
Nuts are reusable. 
2-8 
 | 







