DIN 910 Hex Head Screw Plug
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| 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
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Additional Information
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
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