Stainless Steel 904L Fasteners Product Overview
Mortec At A Glance
Established
Since 2012 • 14+ yrs experience
Manufacturing Units
2 in-house units • Taloja & Mazgaon
Stockyard Area
8,850+ sq.ft • Ready-stock inventory
Certifications
ISO 9001:2015 • GST, IEC & MSME
Clientele
100+ clients • India & export markets
Export Reach
15+ countries • Africa, GCC & Americas
Testing Offered
PMI, mechanical & IGC test • MTC EN 10204 3.1 & 3.2
Shipment Documents
Invoice, Packing List • COO, COI, MTC, BL & Lab Report
Table of Content
PMI Tested SS 904L Hex Head Bolt and Nut Manufacturer in India With MTC To Stop Acid Leaks
Hot sulfuric or phosphoric acid can rapidly corrode common stainless-steel bolting. This corrosion can create dangerous leak points before vessel failure occurs. That's why acid-plant, desalination and marine buyers choose Stainless Steel 904L. Buyers across South Africa, UAE, Kenya and Canada rely on us. Our ex-stock hex bolts, studs, nuts and washers ship quickly. Most orders ship within days rather than several weeks.
Every SS 904L fastener leaves our works with complete certification. 100% PMI verification confirms material identity before every shipment leaves. Export packing protects fasteners during demanding long-haul freight conditions. As a dedicated UNS N08904 fastener exporter, we deal directly. Direct mill supply eliminates trader layers, improving pricing and technical response. We provide faster answers whenever demanding projects require technical support.
Stainless Steel 904L Fasteners Specification
Share your size, quantity and required condition for a live ex-Mumbai 904L fastener quote – MTC included with every dispatch.
SS 904L Hex Head Bolt Head & Drive Styles
- Hex head, socket head, button head
- Countersunk & dowel pin styles
904L SS Socket Head Cap Screw Thread References
- ASME B18.2.1 / B18.2.2
- ISO 4014/4017, DIN 933/931
INOX 904L Nuts Surface Finish
- Bright, pickled & passivated
- Electropolished on request
904L Stainless Steel Nuts Verification
- 100% PMI & zero-tolerance thread gauging
- MTC, third-party inspection on request
904L Stainless Steel Bolts Testing & Documentation
- Proof load, tensile & hardness
- Intergranular corrosion test to ASTM A262
SS 904L Bolts Manufacturing Process
- Cold headed, hot forged or CNC machined
- Made from certified round bar stock
Stainless Steel 904L Fasteners Size Range
- 1/4" to 2" and M6 to M52 diameters
- Custom lengths cut as per drawing
SS 904L Heavy Hex Nuts & Stud Bolts Types
- Flat, spring, lock & conical washers
- Full-thread, double-end & tap-end studs
UNS N08904 Fasteners Chemistry & Grade
- 19-23% Cr, 23-28% Ni, 4-5% Mo, 1-2% Cu
- ASTM A276 / A479 bar, EN 1.4539 equivalent
Supply Custom Size WNR 1.4539 Studs and Threaded Rod With Zero-Tolerance Thread Gauge Verification
904L Stainless Steel Hex Nut Size Chart
Order NACE approved SS 904L Heavy Hex Nuts & Hex Jam Nuts with custom size. We keep ready stocks for immediate dispatch.
| Size (mm) | Diameter (mm) | Height (mm) | ||
|---|---|---|---|---|
| Hex Nuts | Nylock Nuts | Jam Nuts | ||
| 3 | 5.5 | 2.4 | 4 | 1.8 |
| 4 | 7 | 3.2 | 5 | 2.2 |
| 5 | 8 | 4 | 5 | 2.7 |
| 2.5 | 5 | 2 | - | 1.6 |
| 8 | 13 | 6.5 | 8 | 4 |
| 10 | 17 | 8 | 10 | 5 |
| 12 | 19 | 10 | 12 | 6 |
| 14 | 22 | 11 | 14 | 7 |
| 6 | 10 | 5 | 6 | 3.2 |
| 7 | 11 | 5.5 | - | 3.5 |
| 2 | 4 | 1.6 | - | 1.2 |
| 16 | 24 | 13 | 16 | 8 |
| 18 | 27 | 15 | 18.5 | 9 |
| 20 | 30 | 16 | 20 | 10 |
SS 904L U Bolts Testing & Certification
A detailed visual check is performed on every batch to guarantee the absence of micro-cracks or surface defects.
Stainless Steel 904L Fasteners Manufacturer In Mumbai Since 2012
Send size, quantity and finish - we quote ex-stock 904L fasteners within hours.
904L Stainless Steel Fasteners Types
We are a leading Stainless Steel 904L Fasteners Supplier in India, provide ready stock of bolts, studs, nuts and washers.
SS 904L Hex Head Bolt
ASME B18.2.1 • M6–M100- Wrench-fit head for acid-plant joints
- Most-ordered form, held ex-stock
WNR 1.4539 Stud Bolt
Continuous & Double-End • Custom Length- Cut and threaded to your drawing
- Preferred for flange bolting sets
904L SS Socket Head Cap Screw
ISO 4762 / ASME B18.3- Allen-key drive for confined spaces
- Available cup, cone & dog point set screws
SS 904L Heavy Hex Nuts
ASME B18.2.2 • M6–M100- Matched thread class to your bolt lot
- Standard or jam profile in stock
SUS 904L Flat Washer
ASME B18.21.1- Spring-load Belleville for vibration duty
- Wide fender pattern for soft substrates
SS 904L U Bolt
Pipe Clamp & Support Fixing- Custom bend radius to pipe OD
- Used on seawater intake piping
ASTM A193 Grade 904L Rivet
Structural & Cladding Grade- Cold-headed for consistent shear strength
- Custom diameter and grip length
ASTM A193 Gr 904L Dowel Pin
Precision Ground & Location Fit- Tight tolerance for alignment duty
- Ground finish available on request
UNS N08904 Fasteners Chemical Composition
SS 904L Bolt Mechanical Properties
Stainless Steel 904L Fasteners Equivalent
904L Stainless Steel Studs has regional equivalents, all sharing the same base high-Ni, high-Mo austenitic chemistry.
ASTM / ASME (USA)
- UNS N08904
- ASTM A276 / A479 (Bar Stock)
- ASTM A182 (Forgings)
- ASTM F593 / F594 (Alloy Group 6 Bolts & Nuts)
DIN / EN (Germany)
- Werkstoff 1.4539
- EN X1NiCrMoCu25-20-5
- EN 10088-3
BS (United Kingdom)
- BS 1.4539 (Adopted EN 10088-3)
AFNOR (France)
- Z1 NCDU 25-20-04
Common Trade Names
- 904L / Alloy 904L
- Regional mill trade names available on request
SS 904L Bolts Corrosion Resistance & Chemical Compatibility
The single biggest reason acid-plant and mining buyers step up from 316L bolting to 904L.
Need PMI & MTC Records With Your 904L Fastener Order?
Every bolt lot ships with chemical and mechanical test data, upgradeable to 3.2 witnessed on request.
SS 904L Fasteners Manufacturing Process
Every batch moves through controlled stages to meet 904L material & dimensional standards.
Surface Treatments of Stainless Steel 904l Hex Head Bolt
Coating options selected based on service environment, torque-tension needs & galling resistance.
Stainless Steel 904L Fasteners Exporter In India To Jebel Ali, UAE
Desalination-grade bolting packed and container-ready for Gulf shipment.
UNS N08904 Fastener Applications
As a Stainless Steel 904L Fasteners Manufacturer in India, we supply certified bolts for demanding industrial applications.
904L Bolts For Acid & Mining Processing Plants
Frequently asked for by our South African and East African mining and acid-plant buyers.
UNS N08904 Screws Cold Climate & Low-Temperature Service
A common question from our Canadian buyers sourcing bolting for winter-exposed structures.
ASTM F593 Alloy Group 6 Supplier In Durban, PMI-Verified Every Lot
Acid-plant bolting dispatched with full traceability to your Durban port agent.
SS 904L Fasteners Size & Thread Availability
Exact per-piece weight and dimensional data are confirmed against your RFQ and drawing, not published as a generic table.
Stainless Steel 904l Hex Head Bolt Delivery Timeline
Once your purchase order and payment are confirmed, 904L fasteners are packed and released from our Mumbai stocks.
Ex-Stock Bolt & Stud Dispatch
Confirmed ready-stock orders are released within 3 working days
Sea Freight (FCL/LCL)
Lowest cost for bulk fastener quantities, 10–30 days port to port
Air Freight
For urgent turnaround shortages, 4–6 days door to door
Country-Specific ETA
Give us your delivery port and we'll confirm a firm date
SS 904L Fasteners Price Factors
Four variables move the per-piece or per-kg price most - share yours for an accurate quote.
Stainless Steel 904L Fasteners FAQs
Quick answers to the questions buyers ask us most before placing an order.
What is the price basis for SS 904L Fasteners and Screws?
Quoted per kg or per piece against size, condition and testing - share your spec sheet.
What is the equivalent grade for Stainless Steel 904L Bolts?
UNS N08904 matches EN 1.4539 under EN 10088-3, same high-nickel, high-moly chemistry.
Do you supply SS 904L Nuts and Washers to Africa, the Middle East and Canada?
Yes - 904L nuts and washers ship to GCC, African and North American ports with full documents.
Is Stainless Steel 904L Hex Nuts suitable for sulfuric acid service?
Yes - 904L hex nuts suit sulfuric and phosphoric acid across wide concentration ranges.
What testing is available on SS 904L Fastener and Stud Bolt orders?
PMI, proof load, tensile, hardness and ASTM A262 IGC on EN 10204 3.1 or 3.2 certificates.
What sizes are available in SS 904L Threaded Rods and Hex Bolts?
904L threaded rods run 1/4" to 2" and M6 to M52, cut to any length as per drawing.
Is SS 904L better than SS 316 Fasteners for seawater service?
Yes - higher Mo and Cu give 904L far better pitting and crevice resistance than 316.
Authorized Supplier For The Following Companies - Material At Reseller Price For Traders
