China Black Oxide Manufacturer, Supplier, Factory

Jiaxing Qunbang Hardware Co., Ltd. is a fastener manufacturer and supplier in China. We have many years of fastener export experience. ASME B18.2.1 Heavy hex bolt is a common fastener product, It has a wide range of applications. We have hexagonal head bolts in various sizes, Its thread size and thickness allow for better connection, It is usually used with a nut and a washer. We have good price and product inspection certificate, and we have free samples, Welcome to contact us.

ASTM A194-7 Heavy Hex Nuts are the most commonly used nuts in the fastener industry.ASTM A194-7 Heavy Hex Nuts are relatively strong and durable fasteners that can withstand some special industrial conditions. ASTM A194-7 Heavy Hex Nuts hardness, thickness and tensile strength enable it to withstand some extreme industrial environments.

DIN125A Flat Washer is stamped piece from, The shape is round with a hole in the middle. DIN125A Flat Washer have a smooth bearing surface which is used under the head of a bolt, DIN125A Flat Washer are used to reduce friction, The force is unoform, It is not easy to slip and lock in the process of rotation, and it is anti loose design, prevent leakage, isolate, prevent loosening, or distribute pressure.

BS EN15048 Hex Cap Screw is the most commonly used hex bolt in the metric bolt, BS EN15048 Hex Cap Screw common grades are 4.8, 6.8, 8.8, 10.9, 12.9. BS EN15048 Hex Cap Screw surface is coated with different coatings for different environments.

DIN6923 Zinc Plating Hex Flange Nut provide a secure and tight fit, while also preventing the nut from loosening due to vibration. This is especially important in industries where machinery and other heavy equipment are used, as any loosening of fittings can cause dangerous and costly consequences. The flange of DIN6923 Zinc Plating Hex Flange Nut acts as a washer, providing additional support while preventing the nut from embedding itself into the surface of the material being fastened. This greatly reduces the risk of damage to the structure, as well as providing a more aesthetically pleasing finish.

Shear Connector Welding Screw refer to the installation of steel pins or grommets, that extend out of the top flange of a steel support beam. Normally the Shear Connector Welding Screw are welded, with a spot welder, after the metal deck is installed over the supporting structural steel. The spot welder will burn through the metal deck and attach the Shear Connector Welding Screw directly to the top of the steel beam.