Mold-Masters Hot Runner - 4.2 Screw Lengths

4.2 Screw Lengths
WARNING
Be aware of warnings placed on the assembly drawings. When the manifold
is heated the metal expands stretching the mounting screws, if screw
lengths are shortened there is a possibility of shearing.
The expansion factor is calculated into the length of each screw size.
CAUTION
The use of an incorrect size, length and grade screw could cause the screw
to shear, fatigue or stretch beyond its yield point, resulting in expensive
downtime of the Hot Runner.
CAUTION
WARNING
DO NOT SHORTEN SCREW
S.H.C.S. M12 X 130
(ISO-GRADE 12.90
OR ½ - 13 X 4.75
(ASTM A574)
NOT SUPPLIED BY
Mold-Masters
EXAMPLE
EXAMPLE
Figure 4-2 Screw length
4-2
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PREPARATION
Hot Runner User Manual