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Product Overview
This comprehensive fastener series includes the DIN 933 Stainless Steel Hexagon Head Fully Threaded Bolt, DIN 934 Hex Nut, DIN 125 Plain Washer, and DIN 127 Spring Lock Washer. Manufactured from premium 304 Austenitic Stainless Steel (A2-70), this complete fastening solution delivers exceptional corrosion resistance, excellent workability, and high toughness. It is the ideal choice for industrial manufacturing, construction engineering, and marine environments.
Core Components & Specifications
1. DIN 933 Hex Head Fully Threaded Bolt
Standard: DIN 933 / ISO 4017
Thread Type: Fully threaded
Size Range: M3 – M64
Common Lengths: 6mm – 300mm (Custom non-standard lengths available)
Property Class: A2-70 (Tensile strength ≥ 700 MPa)
2. DIN 934 Hex Nut
Standard: DIN 934 / ISO 4032
Features: Standard coarse thread, matches perfectly with DIN 933 bolts, high thread stripping resistance.
3. DIN 125 & DIN 127 Washers
DIN 125 Flat Washer: Increases the load-bearing area, distributes clamping force evenly, and protects the surface of connected parts.
DIN 127 Spring Washer: Provides constant spring tension to effectively prevent thread loosening caused by mechanical vibrations.
Key Advantages
Premium 304 Material: Formulated with 18% Chromium and 8% Nickel to form a dense passive protective layer. It ensures superior rust and corrosion resistance in atmospheric, water, and neutral chemical media.
Precision Manufacturing: Threads are formed via advanced cold-heading and rolling processes, ensuring high surface smoothness and standard thread fullness for smooth installation without jamming.
Non-Magnetic / Weakly Magnetic: Solution-treated to maintain extremely low magnetic permeability, making it suitable for electronics or precision instruments sensitive to magnetic fields.
Extreme Temperature Resistance: Operates reliably across a wide temperature range (-196°C to 800°C), maintaining strength without softening at high temperatures or cracking at low temperatures.
Applications
Equipment Manufacturing: Medical devices, food processing machinery, and pharmaceutical equipment (meeting high sanitary standards).
Architecture & Construction: Curtain wall engineering, outdoor railings, and premium plumbing/bathroom installations.
Transportation & Automotive: Auto parts, metro, and railway vehicle components.
Renewable Energy & Chemicals: Solar PV brackets, wind power assemblies, and mild chemical pipelines.
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