DIN 25201 Wedge Lock Washers | Hardened Spring Steel | Dacromet Zinc Flake Coating
PRODUCT PARAMETERS
Wedge-Lock Vibration Security: DIN 25201 technology utilizes tension-based locking to ensure 100 percent vibration resistance under extreme dynamic and transverse loads.
Advanced Dacromet Coating: The specialized zinc flake finish provides superior corrosion protection (up to 1000 hours salt spray) and maintains consistent friction coefficients.
Zero Hydrogen Embrittlement: The non-electrolytic coating process eliminates brittle failure risks, ensuring structural safety for high-hardness spring steel fasteners.
High-Tensile Load Compatibility: Precision-hardened spring steel construction (HV 465 plus) specifically designed to secure Grade 8.8, 10.9, and 12.9 high-strength bolts.
Efficiency-Focused Pre-Assembly: Pairs are pre-assembled and glued to guarantee correct wedge cam orientation, significantly reducing error rates during industrial installation.
High-performance DIN 25201 wedge lock washers with Dacromet finish. Engineered for 1000 hours salt spray resistance and zero hydrogen embrittlement. Ideal for high-tensile 10.9 and 12.9 bolt security.
Dimensions
Data Overview
Size (Metric)
Inner Dia (di) [mm]
Outer Dia (do) [mm]
Thickness (T) [mm]
Weight [kg/1000pcs]
M6 (NL6)
6.5
10.8
1.8
0.8
M8 (NL8)
8.7
13.5
2.5
1.7
M10 (NL10)
10.7
16.6
2.5
2.5
M12 (NL12)
13.0
19.5
2.5
3.5
M16 (NL16)
17.0
25.4
3.4
7.3
M20 (NL20)
21.4
30.7
3.4
11.0
M24 (NL24)
25.3
39.0
3.4
20.0
M30 (NL30)
31.4
47.0
6.6
45.0
Product Features & Engineering Logic
Key Feature
Technical Specification
Operational Benefit (Trust Driver)
Wedge Cam Logic
Cam Angle (Alpha) is greater than Thread Pitch (Beta).
Increases clamping force automatically if any loosening rotation is detected.
Material Strength
Hardened High-Grade Spring Steel.
Maintains structural “bite” and locking integrity under heavy-duty preload forces.
Surface Finish
Dacromet (Zinc Flake Coating).
Delivers high-level corrosion defense and chemical resistance for outdoor infrastructure.
Dual-Grip Serration
Deep radial teeth on outer surfaces.
Forces all movement to occur between the internal cams, ensuring the self-locking effect.
FAQs
Q1: Why choose Dacromet over Phosphate Black for DIN 25201?
Dacromet is designed for environments requiring high corrosion resistance (coastal or outdoor). While Phosphate Black is excellent for lubricated industrial assemblies, Dacromet provides a long-lasting barrier against oxidation and chemical exposure.
Q2: Can these washers be reused?
Yes. Due to the high hardness of the spring steel, the wedge cams and serrations remain functional after disassembly. We recommend checking the cam surfaces for wear and re-lubricating the bolt threads before re-installation.
Product Attributes
Property
Details
Industry
Industrial Fastener
Brand Name
XLUIG (Kunshan Xinluan New Material Technology Co., Ltd)
Place of Origin
Jiangsu, China
Certificate
ISO 9001:2015 Certified
Thread Size
Customized sizes available
MOQ
5,00 Pieces
OEM / ODM
Support (Based on technical drawings)
Samples
Available upon request
Supply Ability
Service Items
Details & Specifications
Packaging
Small boxes, plastic bags, bulk cartons, and wooden pallets
