Established
Since 2012 • 15+ yrs experience
Manufacturing Units
2 in-house units • Taloja & Mazgaon
Stockyard Area
8,850+ sq.ft • Ready-stock inventory
Certifications
ISO 9001:2015, PED • GST, IEC & MSME
Clientele
100+ clients • India & export markets
Export Reach
15+ countries • Europe, GCC & APAC
Testing Offered
Mechanical, hardness & dimensional • MTC EN 10204 2.1 & 3.1
Shipment Documents
Invoice, Packing List • COO, COI, MTC, BL & Lab Report
Table of Content
When your bay or skid can't afford a fastener failure, Grade 12.9 is the property class engineers reach for. As a direct Grade 12.9 bolt manufacturer, we forge, thread and heat-treat every batch in-house, so what you order is exactly what leaves our Mumbai unit - no re-badged trading stock, no guesswork on the property class marking.
Buyers across the Middle East, Africa, Canada and Southeast Asia order from us because our ex-stock hex bolt and flange bolt range in M6 to M36 ships within 24 to 48 hours, complete with a mill test certificate and export-ready packing. Whether you need a Grade 12.9 M8 bolt for a light assembly or a Grade 12.9 M20 bolt for a structural joint, our in-house testing facility confirms hardness and proof load before your order is confirmed, not after it lands on site.
Get your quote direct from the manufacturer - no middlemen, MTC included with every dispatch. We export Grade 12.9 fasteners worldwide with full mill certification
Our most requested ex-stock sizes are Grade 12.9 M6, M8, M10 and M12 bolts. The larger M14–M24 range is popular for structural steel and heavy machinery joints
| Nominal Size | Coarse Pitch | Hex A/F (ISO 4014/17) | Head Height (approx.) |
|---|---|---|---|
| M6 | 1.00 | 10 | 4.00 |
| M8 | 1.25 | 13 | 5.50 |
| M10 | 1.50 | 16 | 7.00 |
| M12 | 1.75 | 18 | 8.00 |
| M14 | 2.00 | 21 | 9.00 |
| M16 | 2.00 | 24 | 10.00 |
| M18 | 2.50 | 27 | 12.00 |
| M20 | 2.50 | 30 | 13.00 |
| M22 | 2.50 | 34 | 14.00 |
| M24 | 3.00 | 36 | 15.00 |
| M27 | 3.00 | 41 | 17.00 |
| M30 | 3.50 | 46 | 18.70 |
| M33 | 3.50 | 50 | 21.00 |
| M36 | 4.00 | 55 | 22.50 |
Indicative values per ISO 4014/4017 hex bolt series. Fine-pitch and socket-head dimensions issued with your RFQ.
Grade 12.9 Bolts Manufacturer In Mumbai,
ready stock M6–M36, dispatch within 48 hours
Every Grade 12.9 fastener is checked against these codes before dispatch. This includes IS 1367 Grade 12.9 studs for the domestic market
We're a leading Grade 12.9 fasteners supplier in India. Our ex-stock inventory covers every common head type, from hex bolts to anchor bolts.
ISO 898-1 requires a hardenable alloy steel, quenched and tempered above 425°C. Table shows the typical grade used (42CrMo4 / AISI 4140) - confirm exact chemistry on your MTC
MTC-backed, verified material properties per ISO 898-1 for property class 12.9 - covering tensile, yield and shear strength for design reference
Property Class 12.9 is referenced across every major fastener standard - use this table to cross-check your regional callout.
Ex-stock inventory and mill-order dispatch to buyers across the Gulf region.
Indicative tightening torque for a lubricated Grade 12.9 fastener - actual values depend on lubrication and joint conditions. See M8–M24 torque below; confirm with your engineer for critical joints
| Size | M6 | M8 | M10 | M12 | M14 | M16 | M18 | M20 | M22 | M24 |
|---|---|---|---|---|---|---|---|---|---|---|
| Torque (Nm) | 15 | 37 | 75 | 130 | 205 | 320 | 460 | 635 | 865 | 1090 |
These figures are for reference only and assume a lubricated thread and bearing surface - dry/as-received torque can run 20–30% higher. Request a joint-specific torque calculation with your RFQ.
Container-ready shipments for buyers across North, West, East and Southern Africa.
Leading Grade 12.9 Bolts Manufacturer In India
enquiry quoted within 24 working hours
The three most-specified metric property classes side by side - pick the lowest class that still meets your joint's design load.
Check these three marks on the bolt head before install - they confirm property class and traceability on every 12.9 grade bolt we dispatch.
Ex-stock supply lines serving North American, European and Southeast Asian buyers alike.
Coating choice affects corrosion life and embrittlement risk - confirm your finish before order placement
Grade 12.9 Bolts Supplier In India stocking hex, flange and socket head types
MTC-backed batches packed to withstand long transit and tropical port handling.
Every bolt passes through four stages, from wire rod to a heat-stamped finished piece.
Wire rod headed and shank formed under pressure.
Threads rolled after heat treatment to preserve strength.
Tempered above 425°C to reach class 12.9 properties.
Hardness and dimensional check before head-stamping.
Dispatch begins the same day from our Mumbai unit once confirmed - choose your freight mode below.
Stock orders leave within 24–48 hours of PO confirmation
Economical for bulk orders, 2–5 weeks port to port
For urgent spares, 4–8 days door to door
Share your discharge port for an exact delivery window
Grade 12.9 Hex Bolt is available on request and recorded on your mill test certificate.
These are the industries that specify Grade 12.9 fasteners and Grade 12.9 anchor bolts most often, and why.
Grade 12.9 Bolts Exporter with EN 10204 3.1 certification and quick sea shipment
Zinc plated, hardness & proof load tested, MTC 2.1.
Machinery Manufacturer, UAE
DUBAI, UAECustom length, dimensional report, MTC 3.1.
Construction Contractor, South Africa
DURBAN, SOUTH AFRICABlack oxide, batch hardness tested.
Tooling Supplier, Singapore
SINGAPOREFull traceability, third-party witnessed proof load.
Renewable Energy EPC, Canada
TORONTO, CANADATop Export Countries
Have your size and quantity ready? Message us your requirement on WhatsApp for an instant ex-Mumbai price.
Quick answers to the questions buyers ask us most before placing an order.
1220 MPa min tensile, 1080 MPa min yield, per ISO 898-1.
No - metric ISO property class, not a direct SAE Grade 8 match.
Not advised - embrittlement risk. Mechanical zinc or zinc flake instead.
Yes - GCC, Africa, Europe & the Americas, fully documented.
M6 to M36 ex-stock, incl. Grade 12.9 M12 Bolt; above M36 on mill order.