High Fastening Railway Timber Sleeper Screw/Screw Spikes

High Fastening Railway Timber Sleeper Screw/Screw Spikes. Customized Material Options: Available in Q235, 10b21, Stainless Steel, and other grades per request. Customized Surface Treatment: Offers Bronze, Zinc, Rainbow, Plain, Nickle, Passivated, and Electro-plated finishes. OEM and ODM Production: Full OEM and ODM services available with custom molds and fixtures. Comprehensive Certification: Certified under ISO14001 and ISO9001 standards with railway production license. 100% Quality Inspection: Every product undergoes 100% inspection before delivery to ensure quality. Wide Size Range: Available in sizes from M1.6 to M20, plus various metric and imperial dimensions. High Strength Grades: Offers grades 4.8 to 12.9, including high strength options up to 100000psi. Global Standard Compliance: Meets GB, JIS, ANSI, DIN, BS, UIC, AREMA, and ASTM standards.