Screw nut

Contact Form Demo (#3)


Elite Piping Manufacture Co., Ltd
Screw nut

A flange screw nut, also known as a flange bolt, is a type of fastener used to connect two flanges together. They are typically used in piping systems to connect flanged pipes, valves, and fittings. Flange screw nuts are available in a range of sizes and materials, including carbon steel, stainless steel, and alloy steel. They are usually tightened using a torque wrench to ensure that the connection is secure and leak-free.

Rich production technology, advanced equipment, high automation degree and high production precision, complete molding. As the designated supplier of major energy enterprise groups under the jurisdiction of SASAC, the company has won a number of national and provincial reputations.

Additional information


Carbon Steel: ASTM A234-WPB, WPC,
Stainless Steel: ASTM A403 WP304,WP304L,WP304H,WP316,WP316L,WP321,WP321H,WP347H,WP317,
Duplex Steel: ASTM A815 S31803, 2205, S32750, S32760
Low Temp Steel: ASTM A420-WPL6,WPL3,
Alloy Steel: ASTM A234-WP11,WP22,WP91


Widely used in Petrochemical, Coal Chemical, Refining, Oil and Gas Transmission, Marine Environment, Power, Heating and Other projects


Seamless DN15 ( 1/2’’ ) — DN800 ( 32’’ )
Welded DN450 ( 18’’ ) — DN3000 ( 120’’ )

Molding Process

Through hot pressing, cold extrusion, hot pushing, molding and other manufacturing processes, the mold, and mandrel complete the product forming.

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