Countersunk Socket Head Screw (DIN 7991) Supplier
Carbon Steel Countersunk Socket Head Screw (DIN 7991). Flat countersunk head, hex socket drive. Size range M3–M20. Factory direct pricing with ISO 9001 certification.
Quick Specifications
Material
Carbon Steel
Type
Flat countersunk head, hex socket drive
Size Range
M3–M20
Surface Finish
Black oxide / Zinc-plated
Grade
8.8 / 10.9 / 12.9
Product Overview
Countersunk Socket Head Screw (DIN 7991) is a high-quality fastener manufactured from Carbon Steel. Flat countersunk head, hex socket drive. Designed for industrial applications requiring reliable performance and durability.
Available in size range M3–M20, with surface finish options including Black oxide / Zinc-plated. Meets international standards 8.8 / 10.9 / 12.9.
All products are manufactured under strict quality control and ISO 9001 certification, ensuring consistent quality and reliability.
Dimensional Specifications
Countersunk Socket Head Screw (DIN 7991) – Metric Thread Sizes
| Thread Size | Pitch (mm) | Width (mm) | Height (mm) |
|---|---|---|---|
| M3 | 10 | 28 | 17 |
| M20 | 11 | 29 | 5 |
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)
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