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Castle Nuts (DIN 935) - Stainless Steel (A2)

Castle Nuts (DIN 935) – Stainless Steel A2 (SUS304)

FULLERKREG DIN 935 Hexagon Slotted Castle Nuts are manufactured to DIN 935 / ISO 7035 standards in Stainless Steel A2 (SUS304) with a passivated (洗白钝化) finish. Designed for use with cotter pins or split pins to provide positive locking in critical assemblies, these castle nuts are widely used in automotive, machinery, marine, and structural engineering applications where vibration resistance and corrosion protection are essential.

Product Specifications

  • Standard: DIN 935 / ISO 7035
  • Material: Stainless Steel A2 / SUS304 (1.4301)
  • Surface Treatment: Passivated (洗白钝化)
  • Thread: Metric coarse thread (ISO 68-1)
  • Size Range: M5 × 0.8 – M30 × 3.5
  • Strength Class: A2-70
  • RoHS Compliant: Yes

Dimensional Data (DIN 935 – Stainless Steel A2)

All dimensions in mm. Single-piece weight (单重) is approximate reference value.

Thread Size
(d)		 Pitch
(mm)		 Width Across Flats s
Min / Max (mm)		 Width Across Corners e
Min (mm)		 Wrenching Height m
Min / Max (mm)		 Nut Height h
Min / Max (mm)		 Slot Width n
(approx. mm)		 单重
(g/pc)
M5 0.8 7.78 / 8.00 8.79 3.70 / 4.00 5.70 / 6.00 1.6 ≈1.2
M6 1.0 9.78 / 10.00 11.05 4.70 / 5.00 7.14 / 7.50 2.0 ≈2.2
M8 1.25 12.73 / 13.00 14.38 6.14 / 6.50 9.14 / 9.50 2.5 ≈4.8
M10 1.5 16.73 / 17.00 17.77 7.64 / 8.00 11.57 / 12.00 3.0 ≈8.5
M12 1.75 18.67 / 19.00 20.03 9.64 / 10.00 14.57 / 15.00 3.5 ≈13.5
M14 2.0 21.67 / 22.00 23.35 10.30 / 11.00 15.57 / 16.00 4.0 ≈18.0
M16 2.0 23.67 / 24.00 26.75 12.30 / 13.00 18.48 / 19.00 4.0 ≈26.0
M18 2.5 26.16 / 27.00 29.56 14.30 / 15.00 20.16 / 21.00 5.0 ≈36.0
M20 2.5 29.16 / 30.00 32.95 14.90 / 16.00 21.16 / 22.00 5.0 ≈46.0
M22 2.5 31.00 / 32.00 35.03 16.90 / 18.00 25.16 / 26.00 5.0 ≈62.0
M24 3.0 35.00 / 36.00 39.55 17.70 / 19.00 26.16 / 27.00 6.0 ≈80.0
M27 3.0 40.00 / 41.00 45.20 20.70 / 22.00 29.16 / 30.00 6.0 ≈115.0
M30 3.5 45.00 / 46.00 50.85 22.70 / 24.00 32.00 / 33.00 6.0 ≈155.0

* 单重为参考值，实际重量因批次略有差异。尺寸数据依据 DIN 935 标准及实测数据，如有疑问请联系我们确认。

Selection Guide – DIN 935 Castle Nut (A2 Stainless Steel)

Feature Details
Standard DIN 935 / ISO 7035
Material Grade A2 / SUS304 / 1.4301
Surface Passivated (洗白钝化) – natural silver finish
Corrosion Resistance Excellent – suitable for outdoor, marine, and food-grade environments
Locking Method Used with cotter pin / split pin through castle slots
Thread Type Metric coarse (ISO 68-1)
Applicable Bolt DIN 931 / DIN 933 hex bolts with drilled shank
Magnetic Slightly magnetic possible due to cold working
Temperature Range -196°C to +300°C (continuous service)
Packaging Bulk bag / small box / custom packaging available
MOQ Contact us for wholesale pricing and MOQ

Standard Reference

DIN 935 specifies hexagon slotted and castle nuts for use with metric bolts and screws. The standard is harmonized with ISO 7035 and widely recognized by DIN (Deutsches Institut für Normung), the German Institute for Standardization. FULLERKREG manufactures these nuts to full DIN 935 dimensional compliance, with material certification available upon request (EN 10204 3.1 Mill Certificate).

  • DIN 935 – Hexagon slotted and castle nuts (metric)
  • ISO 7035 – Prevailing torque type hexagon nuts (slotted)
  • ISO 3506-2 – Mechanical properties of corrosion-resistant stainless steel fasteners (nuts)
  • ISO 68-1 – Metric screw threads – general plan

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Why Choose FULLERKREG?

  • 🏭 Direct Manufacturer – Factory-direct pricing with no middlemen
  • 📐 DIN/ISO Precision – Strict dimensional compliance to international standards
  • 🔬 Material Certified – EN 10204 3.1 mill certificates available on request
  • 🌍 Global Shipping – Reliable export logistics to worldwide destinations
  • 📦 Flexible MOQ – Wholesale bulk orders and sample orders welcome
  • ⚙️ Full Range – M5 to M30 in stock, custom sizes available
  • ✅ RoHS Compliant – Meets environmental and regulatory requirements
  • 💬 Technical Support – Engineering assistance for material and size selection

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