MSD 7R SHEARS
Page 12
Section 5
Maintenance
BOLT TORQUE GUIDELINES
Proper bolt installation is critical to ensure the safe and effi cient operation of the shear. Carefully follow the
steps below to properly install bolts.
1.
Always replace bolts and nuts with the same size and class of fastener. Replacement fasteners can be
ordered from the Stanley LaBounty Parts Department to ensure the correct part is used (refer to fi gure 5-2).
Unless otherwise specifi ed, use class 10.9 metric hex head capscrews, class 10.9 metric fl at head capscrews,
and class 12.9 metric socket head capscrews.
2.
Make sure bolts, nuts and bolt holes are free of dirt, oil, grease and other contaminants.
3.
If necessary, use the Capscrew Size Guide on this page to help determine the size of the bolt being in-
stalled.
4.
Use the Dry Bolt Torque Chart on this page to fi nd the proper torque. Do not use any thread adhesives
when using dry torque values. When possible, torque the nut rather than the bolt head.
METRIC CAPSCREW SIZE GUIDE
CAP-
SCREW
SIZE
A
HEX HEAD
B
FLAT HEAD
C
SOCKET HEAD
M10 X 1.50
0.63" (16mm)
0.79" (20mm)
0.63" (16mm)
M12 X 1.75
0.71" (18mm)
0.94" (24mm)
0.71" (18mm)
M14 X 2.00
0.83" (21mm)
1.06" (27mm)
0.83" (21mm)
M16 X 2.00
0.94" (24mm)
1.18" (30mm)
0.94" (24mm)
M20 X 2.50
1.18" (30mm)
1.42" (36 mm)
1.18" (30mm)
M24 X 3.00
1.42" (36mm)
N/A
1.42" (36mm)
M30 X 3.50
1.81" (46mm)
N/A
1.77" (45mm)
A
B
C
HEX HEAD
SOCKET HEAD
FLAT HEAD
FIGURE 5-2
