Home » Flat Square Nuts (DIN 562) - Stainless Steel (A2)

Flat Square Nuts (DIN 562) - Stainless Steel (A2)

Flat Square Nuts (DIN 562) – Stainless Steel A2 (SUS304)

FULLERKREG DIN 562 thin pattern square nuts are manufactured to the Deutsches Institut für Normung (DIN) standard in stainless steel grade A2 (SUS304) with a passivated / pickled surface finish. Their four-sided geometry provides a larger bearing surface than hexagonal nuts, enabling higher clamping torque and superior resistance to loosening. The reduced thickness compared to DIN 557 counterparts makes them ideal for space-constrained assemblies.

Product Specifications

Standard Type Material Grade Surface Treatment Thread RoHS
DIN 562 Thin Square Nut (Flat Pattern) Stainless Steel A2 / SUS304 Pickled & Passivated Metric (M2–M10) Compliant

Dimensional Data

All dimensions in millimeters (mm). Weight per 1000 pcs in kg. Unit weight (g/pc) calculated from standard data.

Thread (D) Width Across Flats (S) mm Width Across Corners (E) mm Thickness (M) mm Weight / 1000 pcs (kg) Unit Weight (g/pc)
M2 4 5.2 1.2 0.13 0.13
M2.5 5 6.3 1.6 0.27 0.27
M3 5.5 7 1.8 0.35 0.35
M4 7 8.9 2.2 0.64 0.64
M5 8 10.2 2.7 1.06 1.06
M6 10 12.7 3.2 1.93 1.93
M8 13 16.5 4 4.01 4.01
M10 17 21.6 5 8.80 8.80

Selection Guide

Application Scenario Recommended Size Reason
PCB / Electronics mounting M2 – M3 Compact footprint, low profile, non-magnetic A2
Sheet metal / thin panel assembly M3 – M5 Large bearing surface prevents pull-through
Food & beverage equipment M4 – M8 SUS304 corrosion resistance, passivated finish
Marine / outdoor structures M5 – M10 A2 stainless resists atmospheric corrosion
Furniture & architectural hardware M6 – M10 Clean appearance, square profile for anti-rotation

Standard Reference

DIN 562 specifies thin pattern square nuts with metric threads. The DIN standard is widely adopted in Germany, Europe, and globally. Although ISO standards are progressively replacing DIN designations, DIN 562 remains in active use for applications where no direct ISO equivalent exists or where legacy compatibility is required. FULLERKREG manufactures these nuts in strict conformance with DIN 562 dimensional tolerances.

Product Gallery

DIN 562 A2 Stainless Steel Thin Square Nuts – actual product photos

[Photo 1] [Photo 2] [Photo 3] [Photo 4]

Why Choose FULLERKREG?

🏭 Direct Manufacturer – Factory-direct pricing with full dimensional traceability
📐 DIN Precision – Strict conformance to DIN 562 tolerances, verified by incoming QC
🔩 SUS304 A2 Grade – Excellent corrosion resistance for indoor and mild outdoor environments
✅ RoHS Compliant – All products meet EU RoHS environmental directives
📦 Bulk Wholesale Ready – MOQ flexible, available in reels, bags, or bulk cartons
🌍 Global Shipping – Reliable export logistics to Europe, North America, Southeast Asia
💬 Technical Support – Engineering team available for specification and substitution queries

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