Hand-Tighten Thumb Screw Supplier
Carbon Steel Hand-Tighten Thumb Screw. Large knurled head, hand-tightenable. Size range M3–M12. Factory direct pricing with ISO 9001 certification.
Quick Specifications
Material
Carbon Steel
Type
Large knurled head, hand-tightenable
Size Range
M3–M12
Surface Finish
Plain / Zinc-plated
Grade
4.8
Product Overview
Hand-Tighten Thumb Screw is a high-quality fastener manufactured from Carbon Steel. Large knurled head, hand-tightenable. Designed for industrial applications requiring reliable performance and durability.
Available in size range M3–M12, with surface finish options including Plain / Zinc-plated. Meets international standards 4.8.
All products are manufactured under strict quality control and ISO 9001 certification, ensuring consistent quality and reliability.
Dimensional Specifications
Hand-Tighten Thumb Screw – Metric Thread Sizes
| Thread Size | Pitch (mm) | Width (mm) | Height (mm) |
|---|---|---|---|
| M3 | 6 | 26 | 7 |
| M12 | 12 | 23 | 18 |
Applications
Construction
Steel structures, bridges, buildings, concrete anchors
Machinery
Heavy equipment, industrial machines, manufacturing
Infrastructure
Railways, towers, pipelines, power transmission
Automotive
Vehicle assembly, chassis, engine components
Quality Assurance
ISO 9001 Certified
Strict quality management system
Material Certificates
EN 10204 3.1 certificates available
100% Inspection
Dimensional and visual inspection
Professional Packaging
Carton (bag)
Need Hand-Tighten Thumb Screw?
Factory direct pricing, MOQ from 1 piece, fast delivery worldwide.