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  • Straight Thread Plug
    The Straight Thread Plug (Hex Socket Plug) is a high-performance sealing solution engineered for precision closure in in...
  • Tapered Thread Plug
    In the field of piping prefabrication and installation, precise port closure and testing are of paramount importance. Th...
  • Hexagon Socket Screw Plug
    In applications such as pipeline termination, pressure testing, or equipment maintenance, there is a critical need for a...
  • Spiral Flute Tap
    Spiral flute taps are designed for cutting deep internal threads. Unlike straight flute taps, spiral taps have helical g...
  • Straight Flute Tap
    Straight flute taps are common internal thread cutting tools, mainly used for general-purpose thread machining. They are...
  • Thread Insert Extraction Tool
    Designed to remove incorrectly installed, damaged, or stuck thread inserts. With precise gripping and force distribution...
  • Wire Thread Insert Installation Tool
    Used to accurately screw wire thread inserts into pre-tapped holes, ensuring correct installation and alignment. The too...
  • Self-tapping Insert Installation Tool
    A specialized tool designed for self-tapping inserts, enabling direct cutting of threads in untapped holes without pre-t...
  • Key-locking Insert
    A high-strength thread reinforcement component, typically made of precision-machined stainless steel or carbon steel. It...
  • 303 / 304 / 316 Stainless Steel Oil Plug
    303, 304, and 316 stainless steel oil plugs are designed for applications requiring high corrosion resistance, these sta...
  • Carbon Steel Oil Plug
    Features excellent pressure resistance and good corrosion resistance. Widely used in automotive, machinery, and industri...
  • Carbon Steel 3-Hole Thread Insert
    Carbon Steel Three-Hole Insert is a carbon steel threaded insert featuring three positioning holes. Compared with standa...
  • Stainless Steel 3-Hole Thread Insert
    Stainless Steel Three-Hole Insert is a threaded insert with three evenly distributed positioning holes. Using a dedicate...
  • Tangless Thread Insert
    Tailless screw sleeve, also known as "steel wire screw sleeve without mounting handle", is a type of steel wire screw sl...
  • Screw-Lock Insert
    Screw-Lock Insert is a threaded insert with anti-loosening functionality. Compared to standard inserts, it features a se...
  • Fine Pitch Wire Thread Insert
    Fine Pitch Wire Thread Insert is a wire thread insert with a fine-pitch thread design. Compared with coarse-pitch wire t...
  • Stainless Steel Male-to-Female Thread Adapter
    Stainless Steel Male-to-Female thread adapter(also known as stainless steel thread converter, stainless steel thread sda...
  • Carbon Steel Male-to-Female Thread Adapter
    Carbon steel Male-to-Female thread adapter(it may also be labeled as carbon steel thread converter or carbon steel threa...
  • Non-slotted Male-to-Female Thread Adapter
    The non-slotted male-to-female thread adapter features a smooth, solid surface design, ideal for applications requiring ...
  • Slotted Male-to-Female Thread Adapter
    A slotted male-to-female thread adapter is a connector used to convert between different thread sizes or directions, int...
  • DIN 7965 Screwed Insert
    DIN 7965 screwed inserts are threaded fasteners manufactured according to the German DIN 7965 standard, ensuring strict ...
  • Carbon Steel Self-Tapping Thread Insert
    Carbon steel self-tapping thread inserts are made of high-strength carbon steel, offering mechanical robustness and cost...
  • Yellow Zinc Plated Self-Tapping Thread Insert
    Color zinc plated self-tapping thread inserts feature a dual-protection coating combining a passivation layer for corros...
  • Blue-White Zinc Plated Self-Tapping Thread Insert
    Blue-white zinc plated self-tapping thread inserts are fasteners with a surface treatment that provides excellent rust a...
  • Stainless Steel Self-Tapping Thread Insert
    Stainless steel self-tapping thread inserts are fasteners designed to strengthen threaded connections. Unlike standard i...
Company Profile
Dongtai Jinzhize Metal Products Co., Ltd.
Dongtai Jinzhize Metal Products Co., Ltd.

Dongtai Jinzhize Metal Products Co., Ltd. is a specialized manufacturing facility dedicated to threaded connection products for the automotive and aerospace sectors. We primarily produce Helical Wire Inserts, Self-Tapping Inserts, Key Locking Inserts, Threaded Adapters, Oil Plugs, as well as matching installation taps and tools.

Established in 2015, the company operates from a 10,000-square-meter-owned manufacturing plant equipped with hundreds of machine tools and automated production systems. Through years of development, we have built an experienced team of design, development, and production specialists, complemented by a rigorous quality management system and comprehensive after-sales service mechanism.

Our products are widely utilized in the automotive industry (including engines and transmissions for both passenger and commercial vehicles), the aerospace industry, and rail vehicle manufacturing.

With an annual output value of 153 million RMB in 2024, we possess the capability for a large-scale, stable supply. We are committed to providing customers with highly consistent, traceable products and reliable service support.

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