Zinc Plated Hex-Bolt Carbon Steel Metric Hex Head Bolts Screws 4.8 8.8 Grade /Din933 Din931 Gb5783 Gb30/M6-M42
Zinc Plated Hex-Bolt Carbon Steel Metric Hex Head Bolts Screws 4.8 8.8 Grade /Din933 Din931 Gb5783 Gb30/M6-M42
Our DIN/GB hex bolts eliminate structural loosening in high-vibration environments (machinery/construction), prevent corrosion failure in humid/chemical settings, and solve supply chain gaps with custom-length production within 72hrs.
Why Choose Us:
Factory Direct: 30% cost saving vs. traders with identical certifications
Strength Precision: 10B21 boron-steel bolts achieve 10.9 class strength (20% higher than Q235)
Anti-Corrosion Warranty: 48hrs salt spray tested zinc plating (3x industry standard)
Zero MOQ: Prototype batches accepted for project verification
Trusted By:
Wind Turbine Assembly (M36 bolts for tower flange connections)
Railway Track Fastening Systems (Custom lengths for sleeper fixings)
Offshore Platform Maintenance (A2 stainless steel variants available)
SERIVCE
Reliable After-Sales Support:Swift resolution for all technical issues & product inquiries. / 20+ Years of Global Export Expertise:Proven experience in international logistics & compliance.
Detailed Product Specifications On Request:Customizable spec sheets for informed purchasing decisions. / Instant Quote Response:Submit inquiries for prompt pricing & solution proposals.
Certified Export Documentation & Timely Shipment:Hassle-free logistics with professionally prepared export papers.
Custom Packaging with Pre-Shipment Visual Verification:Branded/secure packaging with photo confirmation before dispatch.
Premium Quality at Competitive Pricing: Industry-leading products optimized for value & performance.
