SS Serie Railway Sleeper Screws 5.6 Grade For Railway Fasteners
 

A rail screw spike, also called sleeper screw, rail screw or lag bolt, is a medium or large metal screw used to fasten a rail base plate or rail. Such spikes are always fastened into holes bored into the tie sleeper, sometimes together with imbedded plastic dowels, popularly used for rails with wooden sleepers, especially in America and Canada.

Production Process to the screw spikes:

• Raw Material
• Wiredrawing
• Rod Cutting
• Head Forming
• Edge Cutting
• Thread Rolling
• Heating Treatment
• Surface Finish
• Inspection
• Packing
• Shipment

For types of sleeper screws, Ss series are the top hot sales, with various sizes available. In addition, square head screw spike, hexagon screw spike, double head screw spike, dog screw, timber screw, and others.

Production Process

Raw material —— Wiredrawing —— Cutting the wire rod to length —— forming the head —— cutting Edge —— Thread rolling —— Heat Treatment —— Surface treatment —— Final  inspection —— Packaging —— Shipment