JM- iso 898 1 bolt mechanical properties and head marking

1. Bolt Size
Tension
Stength
Yield Strength
Proof Load
Stress
Enlogation
mm Mpa Mpa Mpa %
4.6 400min 240min 225 22 B67-95
4.8 420min 340min 310 - B71-95
5.6 500min 300min 280 20 B79-95
5.8 520min 420min 380 - B 82-95
6.8 600min 480min 440 - B 89-99.5
≤16 800min 640min 580 12 C22-32
>16 830min 660min 600 12 C23-34
10.9 1000min 940min 830 9 C32-39
12.9 1080min 1100min 970 8 C39-44
ISO 898-1 Bolt Mechanical Properties and Head Marking
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Head Marking
ISO 898-1
2009(DIN931/9
33)
Standar for
Bolt
Grade Hardness
8.8