Home » Serrated Flanged Hexagon Nuts (DIN 6923) - Stainless Steel (A2)

Serrated Flanged Hexagon Nuts (DIN 6923) - Stainless Steel (A2)

DIN 6923 Serrated Flanged Hexagon Nuts — Stainless Steel A2 (SUS304)

FULLERKREG DIN 6923 serrated hexagon flange nuts are manufactured from SUS304 austenitic stainless steel to Grade A2-70, conforming to the DIN 6923 standard. The integrated serrated flange bearing surface distributes clamping load over a wider area and provides built-in vibration resistance — eliminating the need for a separate lock washer. Surface treatment: acid-washed (洗白) + passivation. Thread: metric coarse (ISO 68-1). RoHS compliant.

Dimensional Data — DIN 6923 Serrated Flange Nut (Stainless Steel A2)

Thread (d) Pitch (mm) s — Width Across Flats (mm) e — Width Across Corners (mm) m — Nut Height (mm) dc — Flange Dia. (mm) c — Flange Thickness (mm) Unit Weight (g)
M5 0.8 8 8.79 5.0 11.8 1.0 1.5
M6 1.0 10 11.05 6.0 14.2 1.1 2.9
M8 1.25 13 14.38 8.0 17.9 1.2 6.1
M10 1.5 15 16.64 10.0 21.8 1.5 10.6
M12 1.75 18 20.03 12.0 26.0 1.8 18.2
M14 2.0 21 23.36 14.0 29.9 2.0 27.8
M16 2.0 24 26.75 16.0 34.5 2.0 40.4
M20 2.5 30 33.53 20.0 42.9 2.5 76.8
M24 3.0 36 39.98 24.0 50.9 3.0 138.0

All dimensions in mm. Unit weight is approximate (calculated at stainless steel density 7.93 g/cm³); actual weight may vary slightly by batch. Tolerances per DIN 6923 / ISO 4161.

Product Specifications

Parameter Value
Standard DIN 6923 / ISO 4161
Type Serrated Hexagon Flange Nut
Material SUS304 Stainless Steel (A2)
Strength Grade A2-70
Surface Treatment Acid-Washed (洗白) + Passivation
Flange Face Serrated (anti-loosening)
Thread Type Metric Coarse Thread (ISO 68-1)
Size Range M5 – M24
RoHS Compliant Yes
Brand FULLERKREG

Material & Mechanical Properties — SUS304 (A2-70)

Property Value
Material Grade A2 (SUS304 / 1.4301)
Proof Load Stress 580 MPa
Tensile Strength (min.) 700 MPa
Yield Strength (min.) 450 MPa
Hardness ≤ HV 220
Corrosion Resistance Excellent (atmospheric, mild chemical)
Magnetic Slightly magnetic after cold working
Operating Temperature -196°C to +300°C

Chemical Composition — SUS304 (A2)

Element C Si Mn P S Cr Ni
Content (%) ≤0.08 ≤1.00 ≤2.00 ≤0.045 ≤0.030 18.0–20.0 8.0–10.5

Selection Guide — DIN 6923 Serrated Flange Nut (A2)

Requirement Recommended Spec
Standard corrosion resistance (indoor/outdoor) SUS304 A2-70 ✔
Vibration-resistant joint (no extra washer) Serrated flange face ✔
Wide bearing surface needed Flange design distributes load ✔
Food / medical / marine environment Consider A4 (SUS316) grade instead
High-temperature application (>300°C) Consult FULLERKREG engineering

Standard Reference

DIN 6923 specifies hexagon flange nuts with a serrated or plain bearing surface. The serrated variant provides mechanical locking through the teeth on the flange underside, which bite into the mating surface under torque. This standard is harmonized with ISO 4161. FULLERKREG manufactures to the current edition of DIN 6923 with full dimensional traceability.

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Why FULLERKREG

🏭 Direct Manufacturer — No middlemen. Factory-direct pricing with full production traceability.
📐 DIN / ISO Precision — Every batch produced and inspected to DIN 6923 / ISO 4161 dimensional standards.
🔩 Wide Size Range — M5 through M24 in stock; non-standard sizes available on request.
📦 Flexible MOQ & Packaging — Bulk bags, small boxes, or custom retail packaging to your specification.
🌍 Global Shipping — Direct export from China; experienced with Amazon FBA inbound, sea freight, and air freight.
✅ RoHS & Material Certs — Mill certificates, RoHS declarations, and inspection reports available on request.
🤝 OEM / Private Label — Custom marking, packaging, and labeling for wholesale partners.

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