L4000G4
NEW LEADER
31
Please Give Part No., Description
& Unit Serial No.
307074-D
Page Rev. A
STANDARD TORqUES NATIONAL
COARSE (NC) CAPSCREWS
CAP SCREW GRADE IDENTIFICATION - MARKINGS ON HEAD
SAE GRADE 2
NO MARKINGS
SAE GRADE 5
THREE MARKS - 120 DEGREES APART
SAE GRADE 8
SIX MARKS - 60 DEGREES APART
USE GRADE 2 TORQUES FOR STAINLESS STEEL FASTENERS AND CARRIAGE BOLTS.
TORQUE - FOOT-POUNDS
CAP SCREW
SIZE
GRADE 2
GRADE 5
GRADE 8
DRY
LUBE
DRY
LUBE
DRY
LUBE
1/4”
5
4
8
6
12
9
5/16”
11
8
17
13
25
18
3/8”
20
15
30
23
45
35
7/16”
30
24
50
35
70
55
1/2”
50
35
75
55
110
80
9/16”
65
50
110
80
150
110
5/8”
90
70
150
110
220
170
3/4”
100
120
260
200
380
280
7/8”
140
110
400
300
600
460
1”
220
160
580
440
900
650
O
P
E
R
.
&
M
A
I
N
T
.
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