Bolts/Nuts and Washers

Rail-Tech is the major manufacturer of quality hot forged bolts and nuts in China. Four thousand tones of bolts are produced at the purpose-built factory in Rail-Tech Group every year. The company ability to perform the crucial processes of heat treatment in-house means that greater control can be exercised over the finished product, resulting in high quality fasteners. In some critical applications, it can be better to design a fastener to suit the joint requirements rather than settle for a standard part. Every year, Rail-Tech manufactures hundreds of thousands of bolts & nuts in accordance with customers? Own drawings.

We manufacture various types of bolts & nuts namely fish bolt & nut, T head bolt & nut, square head bolt & nut, crossing bolt & nut, hook bolt & nut, distance bolt & nut, switch heel bolt & nut, stud bolt & nut, and others. We can supply bolts having various types of heads like round, square, hexagonal,? Shape, etc. The neck of the bolts can be cylindrical, oval or square. We offer bolts and nuts with UIC, ISO, BSW threads or to customer specifications.

We manufacture different types of Washers (Plain & Spring) in accordance to all International Level specifications including IS, BS, EN, DIN, GOST and others. The spring washers are manufactured from spring steel bars.

Spring Washers have the function of:

Providing greater bolt tension per unit of applied torque tighter assemblies 2) Providing hardened bearing surface to create more uniform torque control 3) Providing uniform load distribution through controlled radii - section - cutoff 4) Providing protection against looseness resulting from vibration & corrosion

A) Phosphate coated b) Zinc plating c) Zinc & yellow dichromatic d) Electro-Galvanised e) Cadmium plated