Impulse IF2011 - Measurement Guide; Screw Type Definitions; Torque and Strength Guidelines

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Measurement Guide
Inches
Millimeters
BHCS = Button Head Cap Screw
SHCS = Socket Head Cap Screw
FHCS = Flat Head Cap Screw
HHB = Hex Head Bolt
Diameter of bolt
(mm/inch)
M6(1/4") M8(5/16") M10(3/8") M12(1/2") M16(5/8")
Tightening
torque (N.m)
9~12 22~30 45~59 78~104 193~257
Operational
methods for
adult men
The strength of
the wrist
The strength of
the wrist and
forearm
The strength of
the entire arm
The strength of
the arm and
upper body
with all strength
CRPHS = Cross Recessed Pan
Head Screw