Straight Thread Plug

The Straight Thread Plug (Hex Socket Plug) is a high-performance sealing solution engineered for precision closure in industrial piping, reservoirs, and mechanical equipment. Distinguished from conventional sealing components, our straight plugs utilize high-strength alloys and advanced manufacturing processes, ensuring stable performance across a broad temperature range of -40°C to 200°C—a significant upgrade over standard products typically limited to 0°C to 120°C.

Designed for mission-critical efficiency, the installation and sealing stabilization time is significantly reduced compared to competitors requiring lengthy prep work. These plugs can withstand sealing pressures of up to 10MPa, making them ideal for medium-to-high pressure systems. With excellent compatibility across metal and various synthetic substrates, they allow for direct installation without complex pre-treatment, greatly simplifying the operational workflow.

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Product Features

Reliable Sealing: Precision-machined threads ensure a tight fit. Available with pre-applied sealants or specialized seating designs to achieve leak-free performance in high-pressure environments.
Rapid Installation: Easily tightened with standard hex keys or wrenches; no specialized heavy equipment is required, ensuring high operational efficiency.
Superior Durability: Constructed from high-grade metals with excellent corrosion and impact resistance, making them suitable for the most demanding and complex industrial conditions.

Applications

Hydraulic & Pneumatic Systems: Sealing spare threaded ports to prevent hydraulic oil or compressed air leakage.
Piping Engineering: Closing pre-installed interfaces in pipelines to prevent debris entry or media leakage.
Equipment Manufacturing: Sealing redundant threaded holes in machine tools, valves, and other machinery to optimize aesthetics and protection.
Maintenance & Retrofitting: Temporary or permanent sealing of abandoned threaded ports to enhance system safety and organization.

Company Profile

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.