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20
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Hardware List
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
Hey Key S=3, 4, 6
four M10*25 Hex Bolt (#10)
four M8*20 Hex Bolt (#13)
four Φ11*Φ20*2
Washer (#11)
four Φ9*Φ16*1.6
Washer (#12)
one Φ6.6*Φ23*2.0 Washer (#15)
one M5*40 Socket Head Bolt (#17)
two M5*25 Socket Head Bolt (#19)
one Φ23.5*Φ10.5*7.1 Special Washer (#16)
four Φ18*Φ8.5*6.5 Special Washer (#14)
two Φ16*Φ6*11 Special Washer (#18)
