ASTM A307 A449 A354 SAE J429 Hex Bolt with Nut

• Customization: Available
• Customized: Customized
• Certification: ISO9001
• Model NO.: ASTM A307 A449 A354 SAE J429
• Transport Package: Bundles by Steel Wire Rod
• Trademark: BS
• Origin: China
• HS Code: 73021000
• Production Capacity: 500000ton/Year

Product Description

 

 

Rail bolt,also called track bolt, it is a kind of fasteners to fix the steel rails to the sleepers. In general, the rail bolt has two parts, the head and screws. Track bolt and nuts are two closed parts. Together with the nuts, the rail bolt can fasten the rails at a joint. The rail bolt and some others fasteners like rail clamp, rail spike, rail clips and the like constitute the rail fastening system. As a rail fastener, it plays a big role in guiding the train. Besides, all the fastening system bears the enormous pressure of trains and their loads. So the each fastener should have enough high strength and stability to ensure the train runs safely and steady even if the train at the highest speeds.
Rail bolt is one of the most important railway fasteners in railway system. In general, railway bolts are used to fasten rail track ends together at a joint. The sizes of railway bolts are varying with the requirements of the section of steel rail. The proper diameter and length of the railway bolt can be determined by checking the applicable railway standard.
In traditional railway bolts once the shaft is wound into the end grain and joined to the second member is necessary to place a washer and a nut on to the end of the bolt shaft and tighten, here lies the difficulty and frustration but not with the Railway bolt. The Railway bolt housing has a special open channel feature in the housing which allows the housing to simply drop of the bolt shaft and commence tightening using a hex bit or Allen key without fiddling and trying to start a nut in a restrictive small hole with the further difficulty in trying to tighten the nut.
Shanghai Bosheng Industries Co., Ltd is an ISO 9001/2008 certified company. All processes are in accordance with the requirements of ISO quality management system, from supplier quality control to finished products, we are in accordance with the standard procedures, we have strict quality control system for suppliers:
1. Before producing Rail Bolt, we will check and test the raw materials. we require suppliers to provide production batch number, chemical composition, mechanical properties and other testing indicators.
2. Our quality control inspectors take sample sampling and batch testing after the process of manufacturing Rail Bolt, and provide raw material certificate and other means to control the testing process.
3.According to the different requirements of Rail Bolt, we make the corresponding physical and chemical testing and inspection. If the results do not meet our requirements, we will refuse to accept the materials only if they meet our standards.
4. For semi-finished products and their external suppliers of Rail Bolt, we often organize quality control coordination meetings and provide technical advice and guidance. Ensure that qualified products are delivered to our customers prior to shipment.