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EA Selection Guide Chart

Screw
Size
Screw
Size
Metric
Standard
RPM 700/1000
lb/in .2-4.0
RPM 600/1000
in/lb .44 – 6.2
RPM 600/1000
in/lb .88-10.6
RPM 600/1000
in/lb 5.3-20.0
RPM 450/750
in/lb 8.8 – 28.2
RPM 300/530
in/lb 13.8 – 42.4
000
0
Excellent
 
 
 
 
 
00
1
Good
Excellent
 
 
 
 
0
2
Good
Excellent
Good
 
 
 
1
 
 
Good
Excellent 
 
 
 
2
3
 
 
Excellent
Good
 
 
3
4
 
 
Good
Excellent
 
 
4
5
 
 
 
Excellent
Good
 
5
6
 
 
 
Good
Excellent
Good
6
8
 
 
 
 
Excellent
Excellent
7
 
 
 
 
 
Good
Excellent
8
10
 
 
 
 
 
Excellent
9
 
 
 
 
 
 
Excellent
10
 
 
 
 
 
 
Good
11
 
 
 
 
 
 
Good
12
1/4
 
 
 
 
 
Good