As a trusted railway components manufacturer, Kingrail Parts specializes in producing high-strength coach screws for permanent way applications. Our industrial fasteners are engineered for securely attaching wooden sleepers to base plates and rail chairs.

We utilize certified carbon steel alloys to manufacture coach screws that meet rigorous track maintenance standards. Each fastener delivers exceptional shear strength and long-term corrosion resistance.

• 5½" AS Coach Screw: 139.7mm ±3.18mm length
• 6 5/16" AS Coach Screw: 160.34mm ±3.18mm length
• Thread Specifications: Minor Ø 17.46mm ±0.38mm | Major Ø 23.8mm ±0.38mm
• Square Head Design: 16.99mm A/F (top) | 28.58mm A/F (bottom)
• Material Compliance: BS64, GB 699-88 (45#/35# steel)
• Mechanical Properties: 550-700 N/mm² tensile strength | 15% elongation
• Corrosion Protection: Hot-Dip Galvanized (HDG) coating
• Quality Assurance: Embossed head markings for traceability

• 6 5/16" M Coach Screw: 160.34mm ±3.18mm length
• Enhanced Diameter: Minor Ø 20.64mm ±0.38mm | Major Ø 26.19mm ±0.38mm
• Compatible with standard railway maintenance tools

Beyond our standard AS and M coach screw inventory, we provide:

• Custom fastener engineering based on technical drawings
• OEM/ODM solutions for railway infrastructure projects
• Volume production with consistent quality control
• Flexible surface treatment options including HDG customization

• Railway track construction and maintenance
• Tramway and light rail systems
• Industrial siding and switching installations
• Permanent way component assembly

Looking for reliable coach screw suppliers? Contact Kingrail Parts today for:

• Competitive pricing for bulk orders
• Complete technical specifications
• Sample availability
• Worldwide shipping options

Elevate your rail infrastructure with precision-engineered fastening solutions. Reach out for personalized product recommendations and discover why contractors worldwide trust our components for their critical track applications.