Custom Cold-Formed Parts & Automotive Fasteners | Ningbo, China | Ningbo Yihu Hardware

About Us

Oval Hole Bushing/Washer

Description Package Information Inquiry

Designed specifically for the chassis and fastening systems of high-end automotive brands (such as Mercedes-Benz), this product utilizes a hybrid "Cold Forming + Secondary Precision Machining" manufacturing process. Crafted from premium 10B21 Boron Steel, it ensures superior structural strength while perfectly addressing the technical challenges of processing oval inner holes. This production method achieves the optimal balance between high-precision tolerances and cost-efficiency.

Core Advantages:

  • Composite Manufacturing Process (Cold Forming + Machining):
    The main body is formed via cold forming technology to maximize the retention of metal flow lines (grain flow), significantly enhancing structural strength and reducing raw material waste. Critical mating surfaces undergo secondary CNC precision turning to ensure strict adherence to dimensional tolerances.

  • Specialized Non-Standard Design:
    Featuring a unique Oval Inner Hole and double-flat (milled) exterior design, this component offers excellent anti-rotation and positioning capabilities. It is specifically engineered to meet the demands of complex automotive assembly environments.

  • Premium Material Selection:
    Manufactured from 10B21 Cold Forming Steel. After heat treatment, the material exhibits outstanding toughness and fatigue resistance, fully complying with the rigorous safety and quality standards of German automotive components.

  • Surface Treatment & Durability:
    Supports various surface treatments including Phosphating and Zinc-Nickel Alloy plating. The product passes standard salt spray tests, ensuring excellent corrosion resistance in harsh conditions.

Applications:

  • Automotive Chassis Suspension Systems

  • Engine Bracket Fastening

  • Body Structural Connections



Carton/pallet or according to customers' requirement