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Hex Socket Pipe Plug (Allen Head)
-- Steady & Reliable Manufacturer --
Product Overview
This pipe plug uses a tapered NPT or BSP thread with an internal hex socket drive instead of an external hex head, allowing it to sit flush or recessed in the port rather than protruding. That makes it a practical choice where an external hex head would interfere with surrounding components or create a snag point.
We supply this plug to equipment builders and manifold manufacturers who need a compact, flush-fitting port plug across common NPT and BSP sizes, in carbon steel, stainless steel or brass.
Specifications
| Item | Detail |
|---|---|
| Design | Tapered NPT or BSP thread with internal hex socket drive |
| Size Range | 1/8" – 2" NPT; common BSP sizes on request |
| Material | Carbon steel (zinc/black oxide plated), 300 series stainless steel, brass |
| Drive Type | Internal hex socket (Allen key installation) |
| Sealing Method | Tapered thread seal; PTFE tape or thread sealant recommended at installation |
| Head Profile | Flush or slightly recessed, no external hex head protrusion |
| Surface Finish | Zinc plate, black oxide, passivated (stainless), or natural brass |
| Packaging | Poly bag, inner box, export carton |
Application Fields
- ✓Flush-mount drain and fill points on equipment housings
- ✓Compact hydraulic and pneumatic manifold plugging
- ✓Applications where an external hex head would interfere with clearance
- ✓Equipment needing a recessed plug for safety or snag prevention
- ✓General industrial piping and pressure vessel ports
- ✓Marine and mobile equipment compact plumbing layouts
Key Advantages
- Internal hex socket drive lets the plug sit flush or recessed, avoiding an external hex head that could interfere with nearby parts.
- Available in NPT and BSP thread standards, covering both common piping conventions without a separate part family.
- Multiple material options let buyers match corrosion resistance and cost to the application.
- Compact, low-profile installation suits tight-clearance manifolds and equipment housings.
- Standard tapered thread sealing works with common thread sealants and tape already used in your assembly process.
Company Profile
Dongtai Jinzhize Metal Products Co., Ltd.
As Hex Socket Pipe Plug (Allen Head) Manufacturer and Hex Socket Pipe Plug (Allen Head) Factory, 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.
