The DIN 910 Hex Head Screw Plug is a precision-engineered sealing solution designed to securely close threaded openings across a range of industrial applications. Conforming strictly to DIN 910 standards, this screw plug features a hexagon head with a flat sealing face that ensures a reliable metal-to-metal seal without the need for additional gaskets in many uses. Available in metric threads (ISO metric coarse) and G-threads (BSPP), the plug suits various fluid, hydraulic, pneumatic, and mechanical systems. Crafted from premium materials including zinc-plated steel, stainless steel (A2/A4), and brass, the DIN 910 Hex Head Screw Plug offers versatility for environments requiring corrosion resistance, durability, or non-ferrous compatibility. Its robust design enables it to withstand high pressures, with specific ratings varying by material and size, making it ideal for use in engines, pumps, gearboxes, and industrial fluid systems. Ease of installation via standard spanners, combined with its flat sealing surface, provides secure sealing performance that can be enhanced with thread sealants when used in gas-tight or dynamic systems. The plug's compliance with ISO thread and dimensional tolerances ensures consistent fit and function across applications.
Key Features
| Features | Description |
|---|---|
| Standard Compliance | Manufactured according to DIN 910 specifications for screw plugs with cylindrical threads and sealing face |
| Thread Types | Available in ISO Metric coarse threads (e.g., M10, M20) and G-threads (BSPP) for fluid and gas systems |
| Material Options | Steel (zinc-plated), Stainless Steel (A2/A4), Brass, plus special materials upon request |
| Head Design | Hexagon head for easy wrench tightening, sized per ISO standards |
| Sealing Mechanism | Flat sealing face under the head ensuring metal-to-metal seal without gaskets in numerous cases |
| Pressure Resistance | Supports pressures up to 400 bar depending on material and thread size |
| Temperature Range | Steel: -20°C to 120°C, Stainless Steel: -50°C to 400°C, Brass: -20°C to 200°C |
| Applications | Ideal for sealing threaded holes in machinery, hydraulic/pneumatic systems, engines, pumps, industrial fluid and gas systems |
| Surface Treatment Options | Zinc plating, black oxide, nickel plating, phosphate coating available for enhanced durability |
| Installation | Requires proper torque tightening; compatible with additional sealants for enhanced gas or hydraulic sealing |
| Attributes | Description |
|---|---|
| Thread Type | Metric (ISO coarse), G-thread (BSPP) cylindrical threads |
| Head Type | External hexagon |
| Available Sizes | From M10 × 1.5 up to M30 × 3 and G 1/4" to G 1" threads |
| Material Grades | Steel (zinc-plated), Stainless Steel A2/A4, Brass CuZn |
| Pressure Rating | Up to 250 bar (Steel), 400 bar (Stainless Steel), 150 bar (Brass) |
| Temperature Range | Steel: -20°C to +120°C; Stainless Steel: -50°C to +400°C; Brass: -20°C to +200°C |
| Sealing Face | Flat sealing surface for effective metal-to-metal sealing |
| Surface Finishes | Zinc plating, black oxide, nickel plating, phosphate coating |
| Standards | DIN 910, ISO 965-1 / ISO 965-2 for thread tolerances |
| Typical Usage | Machinery, hydraulics, pneumatic systems, plumbing, HVAC |
| Torque, | Torque depends on material and thread size; precise values per DIN/ISO guidelines |
*Disclaimer: The above description has been AI-generated and has not been audited or verified for accuracy. It is recommended to verify product details independently before making any purchasing decisions.
Yes, the DIN 910 screw plug features a flat sealing face that provides a reliable metal-to-metal seal in many applications, eliminating the need for gaskets or sealants. However, in gas-tight or high-pressure hydraulic systems, the use of PTFE tape or thread sealants is recommended to enhance sealing integrity.
Pressure resistance varies by material: zinc-plated steel plugs typically withstand up to 250 bar; stainless steel (A2/A4) variants handle pressures up to 400 bar; brass plugs are rated up to 150 bar. Actual pressure limits depend on thread size and wall thickness.
Yes, these screw plugs come in ISO metric coarse threads (e.g., M10, M20) as well as G-threads (BSPP) like G 1/4" or G 1/2", both with cylindrical parallel threads designed for flat sealing surfaces.
Stainless steel versions (A2/A4) of the DIN 910 Hex Head Screw Plug are highly suited for corrosive conditions due to their enhanced corrosion resistance and higher temperature tolerance.
Proper installation requires tightening the hexagon head to the torque specifications appropriate for the thread size and material, as recommended by DIN or ISO standards. This ensures a secure metal-to-metal seal and prevents leakage.
Country Of Origin: India
Standard: DIN 910
Type: Screw Plug with Cylindrical Thread and Sealing Face
Thread Type: Metric thread (M) or G-thread (BSPP – British Standard Pipe Parallel), per ISO standards
Material Options:
Steel (usually zinc-plated or galvanized)
Stainless Steel (A2 / A4 – for corrosion resistance)
Brass (for plumbing or corrosion-sensitive applications)
Other special materials (e.g., copper, plastic, or heat-resistant alloys)
Design & Features:
Flat sealing surface under the head for secure metal-to-metal seal (no need for gaskets in many applications)
Hexagon head for easy tightening using a standard wrench or socket
Threaded body for sealing openings in tanks, engines, and hydraulic/pneumatic systems
Pressure-resistant (depending on material and size, can withstand high pressures)
Typical Applications:
Sealing or closing threaded holes in machinery
Hydraulic and pneumatic systems
Engines, pumps, and gearboxes
Industrial fluid and gas systems
Plumbing and HVAC installations
1. Thread Types (per DIN 910):
Metric Threads: ISO Metric coarse thread (e.g., M10, M12, M20, M30, etc.)
G-Threads (BSPP): Often used in fluid systems, e.g., G 1/4", G 1/2", G 1", etc.
Threads are cylindrical (parallel) – designed for use with flat sealing faces.
2. Head Type:
Hexagon Head (external) – designed for tightening/loosening with a standard spanner or socket wrench.
Head size increases with thread size, consistent with ISO standards.
3. Sealing Surface:
Face Seal under the head – provides reliable sealing without additional sealant in many applications.
Can be used with sealing washers or tape for additional protection (especially in gas or high-pressure systems).
🛠️ Installation and Use
Torque tightening is important for proper sealing (torque values depend on thread size and material).
Suitable for direct metal-to-metal sealing – especially effective in precision-machined threaded holes.
May require thread sealant (e.g., PTFE tape or Loctite) for gas-tight or hydraulic-tight seals in dynamic environments.
🌡️ Temperature and Pressure Resistance
Material Typical Temperature Range Pressure Rating
Steel (zinc-plated) -20°C to +120°C Up to 250 bar (depends on size/thread)
Stainless Steel (A2/A4) -50°C to +400°C Up to 400 bar
Brass -20°C to +200°C Up to 150 bar
Note: Ratings vary based on thread size, wall thickness, and sealing surface finish.
📐 Dimensions and Standards
DIN 910 includes a dimensional table specifying:
Thread size (e.g., M10 × 1.5, M20 × 2.5)
Head dimensions (across flats, head height)
Thread engagement length
Tolerances (usually ISO 965-1 / 965-2)
You can refer to the official DIN 910 specification sheet or ISO equivalent for precise dimension tables.
📦 Typical Product Variants
DIN 910-A2 / A4 – Stainless steel (for corrosive environments)
DIN 910-CuZn (Brass) – For plumbing or non-ferrous systems
DIN 910-Zn plated – Cost-effective for general use
Custom surface treatments: black oxide, nickel plating, phosphate coating
