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Bolts & Nuts

BYDM bolts & nuts can fix your blades & cutting edges firmly in place and make the best performance on working. All of the parts are made in high quality alloy steel and automatic heat treatment equipment as below mechanical properties.


Mechanical Properties as below for reference :

High Strength Pretensile Strength Hardness
Grade 8.8 120,000 P.S.I (85.0 Kg/mm2) HRC26~32
Grade 10.9 150,000 P.S.I (105.0 Kg/mm2) HRC32~36
Grade 12.9 170,000 P.S.I (120.0 Kg/mm2) HRC36~42


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