Grade: 4.8, 8.8, 10.9, 12.9, Material: Q235, 35K, 45K, 40Cr, 20Mn Tib, 35Crmo, 42Crmo, Surface Treatment: Blackened, Electrogalvanized, Dacromet, Hot-dip Galvanized, Galvanized, etc!

Fish tail bolt, also known as fish tail bolt or fish tail screw, is a commonly used fastener for railway track connections. Its shape resembles a fish tail, hence its name. Fish tail plugs are usually made of high-strength steel, which has good tensile strength and fatigue resistance. Its main function is to tightly connect the steel rails and sleepers together, ensuring the stability and safety of the railway track. The specifications and dimensions of fish tail bolts may vary depending on the type of steel rail and sleeper. When installing and using fishtail bolts, it is necessary to strictly follow relevant standards and specifications to ensure their fastening effect and the safety and reliability of railway operation.

Grade: 4.8, 8.8, 10.9, 12.9, Material: Q235, 35K, 45K, 40Cr, 20Mn Tib, 35Crmo, 42Crmo, Surface Treatment: Blackened, Electrogalvanized, Dacromet, Hot-dip Galvanized, Galvanized, etc!

A flange bolt is a type of bolt with a flange on the head. Its characteristics include: Increase contact area: The presence of flanges increases the contact area between bolts and connectors, disperses pressure, and reduces damage to the surface of connectors. Improve anti loosening performance: Compared with ordinary bolts, flange bolts have better anti loosening effect in vibration environments. Easy installation: The edges of the flange are usually chamfered or rounded, making it easy to install and position.

These black double – end threaded rods are ideal for construction, machinery assembly, and DIY projects. They feature strong threads for stable connections, high – strength material for durability, and a black finish for corrosion resistance. Used in frameworks, fixtures, or repairs, they ensure reliable fastening in industrial and household scenarios.