Product Description
SM Fasteners offers a comprehensive range of Hex Head Bolts, manufactured to international standards and engineered to perform under high-stress industrial environments. Designed with a six-sided head, hex bolts allow superior torque transfer and wrenching access, making them ideal for a wide array of assembly and construction applications.
Whether you’re securing structural steel, assembling heavy equipment, or working in extreme environmental conditions, our hex bolts deliver reliable clamping force, excellent thread precision, and durability that lasts.
Applications
Structural Steel Fabrication & Construction
Heavy Machinery & Equipment Assembly
Automotive & Rail Component Manufacturing
Power & Energy Projects (Solar, Wind, Hydro)
Infrastructure Projects (Bridges, Highways, Airports)
Shipbuilding, Refineries, and General Engineering
Technical Specifications
| Parameter | Description |
|---|---|
| Head Type | Hexagonal (Standard or Heavy Hex) |
| Thread Type | Metric (Full or Half), UNC, UNF, BSW |
| Thread Tolerance | 6g or custom as per drawing |
| Size Range | M5 to M36 (standard); up to M72 on request |
| Length Range | 10 mm to 300 mm (custom lengths up to 1000 mm) |
| Material Options | Mild Steel, Stainless Steel (304, 316), High-Tensile, EN8, B7, Alloy Steel |
| Grades Available | 4.6, 8.8, 10.9, 12.9, ASTM A325, B7 |
| Coating/Finish | Self-Color, Zinc Plated, Hot Dip Galvanized, Black Oxide, PTFE |
| Supported Standards | DIN 933, ISO 4017, ANSI B18.2.1, ASTM A325, BS 4190 |
| Tolerance | As per ISO 4759-1 / DIN EN ISO 898-1 |
| Certifications | ISO 9001:2015, CE, RoHS, Material Test Certificates |
Why Our Hex Bolts?
✅ Precision Machined Threads – Ensures smooth engagement and consistent torque.
✅ High Tensile Strength – Withstands heavy loads and vibrations without loosening.
✅ Corrosion-Resistant Options – Available in HDG, SS316, or coated finishes for harsh environments.
✅ Custom Production Support – We manufacture according to drawings, samples, or specific project specs.
✅ Full Traceability – Heat number, grade, material, and batch documentation available.
Packaging & Delivery
Standard: 25kg HDPE Bags / 50kg Gunny Bags / Small Boxes in Cartons
Export Grade: Custom wooden pallets, shrink-wrapped with labeling
Each package labeled with: Grade, Size, Heat No., Batch No., Quantity
Lead Time: 7–10 days (stock items); 15–30 days for custom production
Delivery: Domestic (PAN India) & Export to 15+ Countries (via Sea/Air)
Industries We Serve
Construction
Oil & Gas
Automotive
Railways
Power & Energy
Heavy Machinery
Documentation Supplied
Material Test Certificate (EN 10204 3.1)
Certificate of Compliance
Country of Origin (COO)
Packing List & Commercial Invoice
Third-party Inspection Reports (TÜV, SGS, BV on request)
Request a Quotation or Technical Datasheet
Looking for a reliable hex bolt supplier in India with export-ready capabilities? SM Fasteners is your trusted source. Whether it’s 500 pieces or 5 lakh units, we ensure consistency, quality, and timely delivery — every time.
🔹 Email: susheel@smfastners.com
🔹 WhatsApp: Click to Chat
🔹 Call Us: +91-8968469570