Button Head Diamond Neck Bolt is used in railway construction as the means of securing the track's rails to the surface they are applied to.The sizes of track bolts are varying with the requirements of the section of rail. The proper diameter and length of the track bolt can be determined by checking the applicable railway standard .The track bolts can be classified into several types, such as, button head oval neck track bolt, diamond neck track bolt, fish bolt, track bolt of Russian standard, clip bolt, clamp bolt and inserted bolt for Russia, anchor bolt, T-bolt clamp and other special bolts, etc. Zhongbo Railway Fastening co.,Ltd can supply the railroad products with track bolts, hook bolts, hex bolts, oval neck bolts, diamond neck bolts and square bolts. Track bolt main specifications Materials: Steel Q235, 35#, 45#; Alloy Steel 40Cr, 42CrMo, 35CrMo Grade: 4.6/4.8/5.6/5.8…