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ISO 898-1 class 10.9 button-head socket screws to ISO 7380. Compact high-strength rounded heads — not a substitute for DIN 912 where full preload is required. Listed M3–M16.
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91 sizes available
ISO 898-1 property class 10.9 button-head socket screws to ISO 7380. Low rounded head with internal hex, listed M3–M16. Higher material class does not cancel the shallow-head torque limit — this is not a drop-in for a DIN 912 10.9 cap screw.
Higher material class does not cancel the geometric limit of a button head — DIN 912 remains the correct choice for full 10.9 preload. Specify 10.9 button heads only when the drawing calls for this form. Confirm coating of 10.9 parts.
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ISO 898-1 class 10.9
ISO 7380
Steel
Button Socket Screw
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