High Quality China Heavy Hex Structural Bolt and Nut (ASTM A325/A490)

We have probably the most state-of-the-art output equipment, experienced and qualified engineers and workers, recognized good quality manage systems plus a friendly skilled income workforce pre/after-sales support for High Quality China Heavy Hex Structural Bolt and Nut (ASTM A325/A490), Prospects first! Whatever you require, we should do our utmost to help you. We warmly welcome clients from all around the globe to cooperate with us for mutual enhancement. We have probably the most state-of-the-art output equipment, experienced and qualified engineers and workers, recognized good quality manage systems plus a friendly skilled income workforce pre/after-sales support for China Hex Head Bolt, Structure Hex Bolt, Establish long term and win-win business relationships with all our customers, share the success and enjoy the happiness of spreading our products to the world together. Trust us and you will gain more. Be sure to feel free to contact us for more information, we assure you of our best attention at all times. ASTM A325 / A325M Heavy Hex Structural Bolts The bolts are intended for use in structural connections. These connections are covered under the requirements of the Specification for Structural Joints Using ASTM A325 Bolts, approved by the Research Council on Structural Connections, endorsed by the American Institute of Steel Construction and by the Industrial Fastener Institute. Dimension: ASME B18.2.6 (Inch Size),  ASME B18.2.3.7M (Metric Size) Thread Size: 1/2"-1.1/2",  M12-M36, with various lengths Grade: ASTM A325 / A325M Type-1 Finish: Black Oxide, Zinc Plating, Hot Dip Galvanized, Dacromet, and so on Packing: Bulk about 25 kgs each carton, 36 cartons each pallet Advantage: High Quality and Strict Quality Control, Competitive price,Timely delivery; Technical support, Supply Test Reports Please feel free to contact us for more details. In 2016, ASTM A325 was officially withdrawn and replaced by ASTM F3125, in which A325 now becomes a grade under the F3125 specification.  The F3125 specification is a consolidation and replacement of six ASTM standards, including; A325, A325M, A490, A490M, F1852, and F2280.  Prior to its withdrawl in 2016, the ASTM A325 specification covered high strength heavy hex structural bolts from 1/2″ diameter through 1-1/2″ diameter. These bolts are intended for use in structural connections and therefore have shorter thread lengths than standard hex bolts.  This specification is applicable to heavy hex structural bolts only. For bolts of other configurations and thread lengths with similar mechanical properties, see Specification A449. Bolts for general applications, including anchor bolts, are covered by Specification A449. Also refer to Specification A449 for quenched and tempered steel bolts and studs with diameters greater than 1-1/2″ but with similar mechanical properties.