This malleable iron Backnut Fig 310 with beaded edge is manufactured in accordance with DIN standards. It is mainly used for fixing and locking pipe fittings, preventing loosening and ensuring stable connection. The beaded design strengthens the structure to avoid deformation. Made of high-quality black heart malleable iron, it features high strength, good toughness and easy installation. It is widely used in water, gas, oil, steam, fire fighting and other low-pressure fluid piping systems
Malleable iron backnut is a small part that plays a role of fastening connection when fixing tools. It has the characteristics of easy installation, integrity, no gasket, and easy disassembly.
Standard: DIN EN 10242
Type: Backnut Fig 310 beaded
Material: Black heart malleable iron
Thread standard: DIN 2999
Pressure class: 150LB
Temperature range: -20℃ ~ 230℃
Surface treatment: Black / Electro-galvanized / Hot-dip galvanized
Application: Water, gas, oil, compressed air, steam, fire fighting
| Size | Inch | 1/4 | 3/8 | 1/2 | 3/4 | 1 | 11/4 |
| mm | 8 | 10 | 15 | 20 | 25 | 32 | |
| Dim. | A | 6 | 7 | 8 | 9 | 10 | 11 |
| (mm) | S | 22 | 27 | 32 | 36 | 46 | 55 |
| Size | Inch | 11/2 | 2 | 21/2 | 3 | 4 | |
| mm | 40 | 50 | 65 | 80 | 100 | ||
| Dim. | A | 12 | 13 | 16 | 19 | 23 | |
| (mm) | S | 60 | 75 | 95 | 105 | 135 |
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OEM is available. We can customize the product according to your specific requirements, including logo printing and packaging design.
The MOQ is 500 pieces. For customized products with special sizes or surface treatments, the MOQ may vary.
After order confirmation and receipt of the advance payment, we will arrange production. Generally, the products can be ready for shipment within 15-20 working days. Once dispatched, we will notify you and provide all necessary documents for customs clearance.
All products are 100% new and undergo strict quality inspections, including pressure testing and dimensional checks, before delivery. We use sturdy wooden crates or cartons to ensure the products are well-protected during transportation.
Yes, we provide detailed installation instructions in English and other major languages. Our technical support team is also available for online consultation and guidance if needed.
Sales Inquiry:
Provide contact information for sales inquiries.
Email: [email protected]
Phone: +86 13012223295
If you have any questions regarding product installation, commissioning, operation or maintenance, please contact our technical support team for professional assistance:
Email: [email protected]
