Single-Sided Serrated Lock Washer Anti-Slip Steel Washer for Nut and Bolt Fastening

Prevents Bolts and Nuts from Loosening

Single-Sided Serrated Teeth Provide High Grip

Anti-Vibration and Anti-Slip Performance

Available in Stainless Steel, Carbon Steel, and Black Oxide

Suitable for Mechanical, Automotive, Construction, and Industrial Applications

Quick and Easy Installation

Corrosion Resistant for Indoor and Outdoor Use

OEM and Custom Sizes Supported

Product Overview

Lingfeng Precision Industry’s high-precision stamping dies and fasteners are made from premium tool steel (SKD11/DC53) and advanced heat treatment processes, offering high wear resistance, long service life, and micron-level accuracy. Widely used in automotive body structures, electronic connectors, aerospace fasteners, and EV battery components, ensuring consistency and reliability for every stamped part and fastener.

Applications

Lingfeng Precision provides full technical support and custom services – from die design, CAE analysis, tryout, to mass production – for various stamping and fastener project requirements.

  • Precision stamping dies for automotive structural parts (doors/seats/chassis)

  • Micro stampings & precision fasteners for electronics (M1.2~M6)

  • High-strength aerospace fasteners (titanium / Inconel)

  • Heavy-duty industrial stampings (8~25mm thickness)

  • Anti-vibration fasteners & connectors for EV battery systems

  • Progressive dies & stampings for automation equipment

 

Applications

Product specifications
Stable performance and reliable precision, fully meeting automated mass production needs.

  • Die material: SKD11 / DC53 / Carbide / Powder metallurgy high-speed steel

  • Stamping tolerance: ±0.005mm ~ ±0.01mm (depending on material thickness)

  • Fastener strength grade: Grade 8.8 / 10.9 / 12.9 / 14.9

  • Fastener size range: M2 ~ M30, length 5~200mm

  • Surface finish: Eco-friendly zinc plating, Dacromet, black oxide, phosphating, Zn-Ni alloy

  • Die life: 2 – 5 million strokes (depending on material & speed)

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