DIN 931 HEX BOLT — Grade Matrix

BOLTS · Cross-reference compatibility analysis for material, finish & size combinations

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Substitution Feasibility Check

Engineering Substitution Engine — Evaluate the feasibility of replacing DIN 931 with an alternative standard.

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Attribute Comparison

Potential Risks

    Evaluation Steps

    Size × Grade × Finish Compatibility

    Compatibility between sizes, material grades, and surface finishes under DIN 931.

    Size Material / Grade Surface Finish Compatibility Notes
    M610.9Plain✅ CompatibleStandard combination
    M65.6Plain✅ CompatibleStandard combination
    M65.8Plain✅ CompatibleStandard combination
    M6A4-70Plain✅ CompatibleStandard combination
    M68.8Plain✅ CompatibleStandard combination
    M6A2-70Stainless Steel⚠️ ConditionalRequires engineering verification
    M6A4-70Stainless Steel⚠️ ConditionalRequires engineering verification
    M612.9Plain✅ CompatibleStandard combination
    M6A2-70Plain✅ CompatibleStandard combination
    M88.8Plain✅ CompatibleStandard combination
    M8A2-70Stainless Steel⚠️ ConditionalRequires engineering verification
    M85.8Plain✅ CompatibleStandard combination
    M8A4-70Plain✅ CompatibleStandard combination
    M8A4-70Stainless Steel⚠️ ConditionalRequires engineering verification
    M8A2-70Plain✅ CompatibleStandard combination
    M812.9Plain✅ CompatibleStandard combination
    M810.9Plain✅ CompatibleStandard combination
    M85.6Plain✅ CompatibleStandard combination
    M108.8Plain✅ CompatibleStandard combination
    M10A2-70Stainless Steel⚠️ ConditionalRequires engineering verification
    M10A4-70Plain✅ CompatibleStandard combination
    M10A2-70Plain✅ CompatibleStandard combination
    M1012.9Plain✅ CompatibleStandard combination
    M105.8Plain✅ CompatibleStandard combination
    M10A4-70Stainless Steel⚠️ ConditionalRequires engineering verification
    M1010.9Plain✅ CompatibleStandard combination
    M105.6Plain✅ CompatibleStandard combination
    M128.8Plain✅ CompatibleStandard combination
    M12A2-70Stainless Steel⚠️ ConditionalRequires engineering verification
    M125.8Plain✅ CompatibleStandard combination
    M12A4-70Plain✅ CompatibleStandard combination
    M1212.9Plain✅ CompatibleStandard combination
    M12A4-70Stainless Steel⚠️ ConditionalRequires engineering verification
    M12A2-70Plain✅ CompatibleStandard combination
    M1210.9Plain✅ CompatibleStandard combination
    M125.6Plain✅ CompatibleStandard combination
    M14A2-70Plain✅ CompatibleStandard combination
    M1410.9Plain✅ CompatibleStandard combination
    M14A4-70Stainless Steel⚠️ ConditionalRequires engineering verification
    M14A2-70Stainless Steel⚠️ ConditionalRequires engineering verification
    M145.6Plain✅ CompatibleStandard combination
    M14A4-70Plain✅ CompatibleStandard combination
    M148.8Plain✅ CompatibleStandard combination
    M1412.9Plain✅ CompatibleStandard combination
    M145.8Plain✅ CompatibleStandard combination
    M1610.9Plain✅ CompatibleStandard combination
    M165.6Plain✅ CompatibleStandard combination
    M168.8Plain✅ CompatibleStandard combination
    M16A2-70Stainless Steel⚠️ ConditionalRequires engineering verification
    M165.8Plain✅ CompatibleStandard combination
    M16A4-70Plain✅ CompatibleStandard combination
    M1612.9Plain✅ CompatibleStandard combination
    M16A4-70Stainless Steel⚠️ ConditionalRequires engineering verification
    M16A2-70Plain✅ CompatibleStandard combination
    M188.8Plain✅ CompatibleStandard combination
    M18A2-70Stainless Steel⚠️ ConditionalRequires engineering verification
    M18A4-70Plain✅ CompatibleStandard combination
    M1812.9Plain✅ CompatibleStandard combination
    M185.8Plain✅ CompatibleStandard combination
    M18A4-70Stainless Steel⚠️ ConditionalRequires engineering verification
    M18A2-70Plain✅ CompatibleStandard combination
    M1810.9Plain✅ CompatibleStandard combination
    M185.6Plain✅ CompatibleStandard combination
    M2012.9Plain✅ CompatibleStandard combination
    M205.8Plain✅ CompatibleStandard combination
    M20A4-70Stainless Steel⚠️ ConditionalRequires engineering verification
    M20A2-70Plain✅ CompatibleStandard combination
    M2010.9Plain✅ CompatibleStandard combination
    M205.6Plain✅ CompatibleStandard combination
    M208.8Plain✅ CompatibleStandard combination
    M20A2-70Stainless Steel⚠️ ConditionalRequires engineering verification
    M20A4-70Plain✅ CompatibleStandard combination
    M22A2-70Stainless Steel⚠️ ConditionalRequires engineering verification
    M22A4-70Plain✅ CompatibleStandard combination
    M2212.9Plain✅ CompatibleStandard combination
    M225.8Plain✅ CompatibleStandard combination
    M22A2-70Plain✅ CompatibleStandard combination
    M2210.9Plain✅ CompatibleStandard combination
    M225.6Plain✅ CompatibleStandard combination
    M22A4-70Stainless Steel⚠️ ConditionalRequires engineering verification
    M228.8Plain✅ CompatibleStandard combination
    M24A4-70Stainless Steel⚠️ ConditionalRequires engineering verification
    M24A2-70Plain✅ CompatibleStandard combination
    M2412.9Plain✅ CompatibleStandard combination
    M2410.9Plain✅ CompatibleStandard combination
    M245.6Plain✅ CompatibleStandard combination
    M248.8Plain✅ CompatibleStandard combination
    M24A2-70Stainless Steel⚠️ ConditionalRequires engineering verification
    M245.8Plain✅ CompatibleStandard combination
    M24A4-70Plain✅ CompatibleStandard combination
    M27A2-70Plain✅ CompatibleStandard combination
    M2710.9Plain✅ CompatibleStandard combination
    M275.6Plain✅ CompatibleStandard combination
    M278.8Plain✅ CompatibleStandard combination
    M27A2-70Stainless Steel⚠️ ConditionalRequires engineering verification
    M27A4-70Plain✅ CompatibleStandard combination
    M275.8Plain✅ CompatibleStandard combination
    M2712.9Plain✅ CompatibleStandard combination
    M27A4-70Stainless Steel⚠️ ConditionalRequires engineering verification
    M30A2-70Plain✅ CompatibleStandard combination
    M3010.9Plain✅ CompatibleStandard combination
    M305.6Plain✅ CompatibleStandard combination
    M30A4-70Stainless Steel⚠️ ConditionalRequires engineering verification
    M308.8Plain✅ CompatibleStandard combination
    M30A2-70Stainless Steel⚠️ ConditionalRequires engineering verification
    M30A4-70Plain✅ CompatibleStandard combination
    M3012.9Plain✅ CompatibleStandard combination
    M305.8Plain✅ CompatibleStandard combination
    M36A4-70Stainless Steel⚠️ ConditionalRequires engineering verification
    M36A2-70Plain✅ CompatibleStandard combination
    M3610.9Plain✅ CompatibleStandard combination
    M365.6Plain✅ CompatibleStandard combination
    M36A4-70Plain✅ CompatibleStandard combination
    M368.8Plain✅ CompatibleStandard combination
    M3612.9Plain✅ CompatibleStandard combination
    M36A2-70Stainless Steel⚠️ ConditionalRequires engineering verification
    M365.8Plain✅ CompatibleStandard combination
    M428.8Plain✅ CompatibleStandard combination
    M42A2-70Stainless Steel⚠️ ConditionalRequires engineering verification
    M42A4-70Plain✅ CompatibleStandard combination
    M425.8Plain✅ CompatibleStandard combination
    M4212.9Plain✅ CompatibleStandard combination
    M42A4-70Stainless Steel⚠️ ConditionalRequires engineering verification
    M42A2-70Plain✅ CompatibleStandard combination
    M4210.9Plain✅ CompatibleStandard combination
    M425.6Plain✅ CompatibleStandard combination
    M48A4-70Stainless Steel⚠️ ConditionalRequires engineering verification
    M48A2-70Plain✅ CompatibleStandard combination
    M4810.9Plain✅ CompatibleStandard combination
    M485.6Plain✅ CompatibleStandard combination
    M488.8Plain✅ CompatibleStandard combination
    M48A2-70Stainless Steel⚠️ ConditionalRequires engineering verification
    M48A4-70Plain✅ CompatibleStandard combination
    M485.8Plain✅ CompatibleStandard combination
    M4812.9Plain✅ CompatibleStandard combination
    M56A4-70Plain✅ CompatibleStandard combination
    M5612.9Plain✅ CompatibleStandard combination
    M565.8Plain✅ CompatibleStandard combination
    M56A4-70Stainless Steel⚠️ ConditionalRequires engineering verification
    M56A2-70Plain✅ CompatibleStandard combination
    M5610.9Plain✅ CompatibleStandard combination
    M565.6Plain✅ CompatibleStandard combination
    M568.8Plain✅ CompatibleStandard combination
    M56A2-70Stainless Steel⚠️ ConditionalRequires engineering verification
    M645.8Plain✅ CompatibleStandard combination
    M6412.9Plain✅ CompatibleStandard combination
    M64A4-70Stainless Steel⚠️ ConditionalRequires engineering verification
    M64A2-70Plain✅ CompatibleStandard combination
    M6410.9Plain✅ CompatibleStandard combination
    M645.6Plain✅ CompatibleStandard combination
    M648.8Plain✅ CompatibleStandard combination
    M64A2-70Stainless Steel⚠️ ConditionalRequires engineering verification
    M64A4-70Plain✅ CompatibleStandard combination

    Related Standards & Academic References

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    DIN 931 Partial Thread Hexagon Head Bolt per DIN 931 specification, available in A4-70 grade with Stainless Steel finish. Engineered for industrial OEM applications requiring 700.0 MPa tensile strength and reliable long-term fastening performance.

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