Industrial Fasteners Overview
Mortec Manufacturing Co At A Glance
Founded
2012 • 15+ years hot forging fasteners
In-House Units
Forging & CNC machining • Taloja & Mazgaon
Stockyard
8,850+ sq.ft • ready fastener inventory
Approvals
ISO 9001:2015, PED • RDSO, GST & IEC
Clientele
100+ buyers • domestic & export projects
Export Reach
15+ countries • Africa, GCC & Americas
Testing Offered
Proof load, hardness & chemical • NABL lab
Shipment Documents
Invoice, Packing List • COO, COI, MTC & BL
Table of Content
PED and RDSO Approved Custom Bolts and Nuts Manufacturer In India in Various Material and Grades
A tender rejected over a missing MTC or an untraceable heat number costs more than the fastener ever did. We are established fasteners manufacturers in Mumbai, with our own forging unit, and that is the gap we close for buyers across Mumbai, Ahmedabad, Bengaluru, and export markets from Durban to Dubai: every bolt, nut, stud, screw and rivet we hot forge carries full chemical and mechanical traceability from the day it leaves our press.
We run our own forging and CNC thread-rolling lines rather than trading bought-out stock, so property class, thread form and finish are confirmed before your PO is placed, not after a rejection. Among fastener companies in India, buyers building anchor systems, structural assemblies, or petrochemical stud bolt packages work directly with our grade desk, with RDSO-approved lines available for railway-specified items and PED-compliant documentation for pressure-equipment bolting.
Bolts Nuts Screws Specification
Quote direct for hot forged fasteners - unlike most fasteners suppliers in India, we hold ex-stock.
Bolts Nuts Washers Size Range
- M3 to M100 (metric)
- ¼″ to 4″ (imperial)
Hot Forged Fasteners Property Class
- 4.6, 5.6, 8.8, 10.9, 12.9 (ISO 898-1)
- A2-70, A4-80 stainless
Industrial Fasteners Governing Standards
- ASTM A193/A194, ASME B18.2.1/2.2
- ISO 4014/4017/4032, DIN 931/933/934
- IS 1364, IS 1367
Military Fasteners Thread & Head Type
- UNC, UNF, BSW, Metric Coarse & Fine
- Hex, Heavy Hex, Socket, Countersunk
Hex Bolts and Nuts Material Grades
- Carbon & alloy steel, stainless, duplex
- Titanium, Monel & Hastelloy on request
Bolts and Nuts Testing & MTC
- NABL ISO/IEC 17025 lab
- EN 10204 2.1, 2.2, 3.1 & 3.2 MTC
Fasteners Available Material and Grades
Every fastener is forged and machined in the material and grade your drawing specifies - from carbon steel through exotic nickel alloys.
Stainless Steel
Duplex
Super Duplex
Inconel
Monel
Hastelloy
Titanium
Carbon Steel
Alloy Steel
Brass
Source Hot Forged Military and Aerospace Fasteners With NABL ISO/IEC 17025 Certified Lab Testing
Fasteners Manufacturer In India - Mumbai Forging Unit Since 2012
Share drawing, grade and quantity - our grade desk confirms property class and lead time same day. As a nut bolt manufacturer in India, drawings are matched before dispatch.
Bolts
An anchor fastener manufacturer in India, forging in-house - among the largest bolt manufacturers in India. As a bolt manufacturer, every head and thread style ships from stock or on order.
Hex Bolt
ISO 4014/4017 • DIN 931/933- Standard hex head, full or part thread
Carriage Bolt
DIN 603 • Round Head Square Neck- Self-locking square neck, no tool needed on head
Eye Bolt
DIN 580 • Lifting & Rigging- Looped head for shackle, hook or cable
U-Bolt
Pipe & Round Stock Clamping- U-shaped, threaded both ends with plate/nuts
J-Bolt
Foundation & Anchoring- J-shaped hook end, cast into concrete
Elevator Bolt
Large Flat Head • Square Neck- Wide flat head spreads load on conveyor belting
Flange Bolt
Integrated Washer Head- Built-in flange, no separate washer needed
Socket Head Cap Bolt
ISO 4762 • DIN 912- Allen-key drive, compact head for tight spaces
Shoulder Bolt
Precision Ground Shoulder- Smooth shoulder diameter for pivot/linkage use
Lag Bolt
Coarse Wood Thread- Hex or square head, self-tapping into wood
Anchor Bolts
Resin/Epoxy Set- Threaded rod set with structural adhesive into concrete/masonry
Square Head Bolt
DIN 478 • Heavy Duty- Square drive head for wrench grip in rough service
T-Bolt
T-Slot & Track Mounting- T-shaped head slides into slotted rail or track
Anchor Bolt
L-Type, J-Type & Swage- Cast-in or post-installed foundation fastening
Concrete Bolts
Sleeve & Wedge Type- Expansion action for direct fastening into cured concrete
Nuts
Among hex bolts and nuts manufacturers in India, castle and coupling styles are forged and thread-rolled in-house. As a nut manufacturer, sizes are matched to your bolt's property class.
Hex Nut
ISO 4032 • DIN 934- Standard six-sided nut, most common type
Lock Nut (Nylon Insert, Metal Lock)
DIN 985 / DIN 980- Nylon or deformed-thread insert resists vibration loosening
Wing Nut
Hand-Tightened- Wing-shaped for tool-free finger tightening
Cap Nut (Acorn Nut)
DIN 1587- Domed top covers and protects exposed thread
Flange Nut
Integrated Washer Face- Built-in flange spreads clamping load
Square Nut
DIN 557 • Heavy Duty- Four-sided nut for higher torque resistance
Castle Nut
Slotted • Cotter Pin Ready- Slotted crown accepts cotter pin for lock-wiring
Coupling Nut
Long Body • Rod Joining- Extended internally-threaded body joins two threaded rods
Jam Nut
Thin Profile- Low-height nut locks against a primary nut
Screws
Socket screws, self-tapping and countersunk types are machined to your torque and finish requirement, not just picked off a shelf.
Clips and Clamps
Fastening Accessories- Spring clips and pipe/hose clamps for assembly
Self-Tapping Screw
Sheet Metal & Plastic- Cuts its own thread into a pre-drilled hole
CSK Screws
Countersunk Head- Flush-fitting head sits level with the surface
Button Head Screws
Low-Profile Dome Head- Rounded head with socket drive for light-duty joints
Grub Screws
Headless • Set Screw- Fully threaded, sits flush for locking pulleys/collars
Machine Screws
Pre-Tapped Hole/Nut- Uniform thread for use with a tapped hole or nut
Washer
Bolts, nuts and washers are supplied matched as complete sets, so clamping load and surface finish line up first time.
Flat Washer
ISO 7089/7090- Spreads load, protects surface under bolt head/nut
Lock Washer (Split, Tooth)
DIN 127 / DIN 6797- Spring or tooth profile resists loosening
Fender Washer
Large OD, Small ID- Wide diameter for use on soft or oversized holes
Sealing Washer
Bonded Rubber/NBR Seal- Rubber-bonded to prevent leakage at the joint
Shoulder Washer
Insulating Sleeve- Nylon sleeve isolates bolt from bore, electrical insulation
Stud Bolt
Petrochemical stud bolts remain our most-ordered category, matched to ASTM A193 B7 and the flange standard you specify.
Fully Threaded Stud
ASME B18.31.3- Continuous thread along the full length
Double Ended Stud
ASTM A193 B7 • ASME B18.2.1- Threaded both ends, plain centre per flange standard
Tap End Stud
Unequal Thread Length- One end threads into a tapped hole, other takes a nut
Weld Stud
Arc/CD Stud Welding- Welded directly to a base plate or structure
Threaded Rod
Cut to length or supplied as a full bar, every threaded rod ships in the grade and finish your drawing calls for.
Metric Threaded Rod
DIN 975/976- Coarse or fine metric thread, cut to length
Screwed Rod
General Purpose- Full-length threaded bar for studding/hanging applications
Double Ended Threaded Rods
Threaded Ends, Plain Centre- Threaded only at both ends for flange/bracket bolting
Large Diameter Threaded Rod
Up to M100 / 4″- Heavy structural and foundation bolting applications
ACME Threaded Rod
Trapezoidal ACME Thread- For lead screws and linear motion assemblies
Slotted Threaded Rods
Slotted End- Slotted tip for screwdriver installation
Dowel Pin
Precision-ground for a controlled fit, these pins locate and lock moving or fastened assemblies in place.
Cotter Pin
Split Pin • ISO 1234- Split-leg pin locks castle nuts and clevis joints
Taper Pin
ISO 2339 / DIN 1- Tapered shank for precise, self-locking alignment
Roll Pin (Spring Pin)
ISO 8752 • Split Tube- Spring tension holds the pin in a reamed or drilled hole
Clevis Pin
Retaining Clip/Cotter- Headed pin secured by cotter pin or R-clip
Rivets
Blind, solid and structural rivet types are stocked for sheet, panel and rail applications.
Solid Rivet
Hammer/Press Set- Permanent joint formed by deforming a solid shank
Blind Rivet (Pop Rivet)
Single-Side Access- Installed from one side using a pull-mandrel tool
Drive Rivet
Hammer-Set Pin- Centre pin driven in to expand and lock the body
Split Rivet
Bifurcated Shank- Split legs pierce and fold back into soft materials
Fasteners Manufacturing, Marking, Testing At Mortec
A closer look at our hot forging, thread rolling, heat lot marking and NABL testing lines - straight from the shop floor.
Aerospace Fasteners Chemical Composition
As bolt manufacturers in India, we hold chemistry on file for alloy and stainless steel.
Need Heat-Wise Mill Test Certificates?
Every batch ships with EN 10204 2.1/2.2 as standard - 3.1 and third-party witnessed 3.2 on request.
PED Certified Fasteners Mechanical Properties
Minimum values per ISO 898-1 for the three property classes we forge most, plus ASTM A193 B7 for petrochemical stud bolts (sizes up to 2½″ dia).
Class 8.8 range covers d≤16mm (800 MPa) and d>16mm (830 MPa). A193 B7 values apply up to 2½″ diameter; lower values apply above that size per ASTM A193.
Nut Bolt Equivalent Grade Chart
Metric hex bolt and nut standards cross-referenced across the systems our export buyers specify most often.
IS (India)
- IS 1364 Part 2 (Bolts, identical to ISO 4017)
- IS 1364 Part 3 (Nuts, identical to ISO 4032)
- IS 1367 (Property classes)
ISO (International)
- ISO 4014 (Hex bolt, part thread)
- ISO 4017 (Hex bolt, full thread)
- ISO 4032 (Hex nut)
DIN (Germany)
- DIN 931 (= ISO 4014)
- DIN 933 (= ISO 4017)
- DIN 934 (= ISO 4032)
- DIN 912 (= ISO 4762, socket head)
ASTM / SAE (USA)
- ASTM A193 B7 / A194 2H (bolting)
- ASTM A325 / F3125 (structural)
- SAE J429 Grade 5 & 8
BS (United Kingdom)
- BS 3692 (Precision hex bolts/nuts)
- BS 4190 (Black hex bolts/nuts)
- BS EN ISO 898-1 (Property classes)
JIS (Japan)
- JIS B1180 (Hex bolts)
- JIS B1181 (Hex nuts)
- JIS B1051 (Mechanical properties)
Fastener Manufacturers In Maharashtra - Exporter To Durban, South Africa
Container-load or LCL, we handle export packing and paperwork for the whole shipment.
Bolts And Nuts Sizes
Thread pitch and across-flats sizing for the most-ordered metric sizes, per ISO 4014/4017 bolts and ISO 4032 nuts (IS 1364 equivalent).
| Nominal Size | Thread Pitch | Across Flats (Bolt & Nut) |
|---|---|---|
| M6 | 1.00 | 10 |
| M8 | 1.25 | 13 |
| M10 | 1.50 | 16 |
| M12 | 1.75 | 18 |
| M16 | 2.00 | 24 |
| M20 | 2.50 | 30 |
| M24 | 3.00 | 36 |
| M30 | 3.50 | 46 |
| M36 | 4.00 | 55 |
Sizes below M6 and above M36 are also stocked - share your drawing for the full range.
Automotive Fasteners Coatings & Corrosion-Resistant Finishes
Coastal, mining and structural buyers in South Africa, UAE and Kenya specify finishes matched to property class - few fasteners manufacturing companies in India run forging and CNC threading in-house.
Class 10.9 and 12.9 fasteners are supplied zinc-flake or mechanically plated rather than hot-dip galvanized, avoiding hydrogen-embrittlement risk on these higher-strength grades.
Structural Assemblies Fasteners
Bridges and structural steel connections use a bolt-nut-washer system - as a fasteners exporter, we handle customs paperwork.
Tailor-Made Custom Fasteners Manufacturing Process
Non-standard length, thread, head form or drilled hole - our forge and CNC lines are set up to run custom drawings, not just catalogue sizes.
Drawing Review
Grade desk confirms thread, tolerance and property class against your drawing.
Hot Forging
Billet upset-forged to head/blank shape under controlled temperature.
CNC Thread Rolling
Rolled (not cut) threads for higher fatigue strength on load-bearing fasteners.
Heat Treatment
Quench & temper to the specified property class and hardness range.
Test & Mark
Proof load, hardness and dimensional check before heat-lot marking.
Working From A Drawing, Not A Catalogue Size?
Send your DWG or PDF - we quote tooling, MOQ and lead time within 48 hours.
Packing & Export Documentation
Every export order includes customs paperwork - EIL approved fasteners manufacturers in India can request documentation.
Your Fasteners Supplier Across Africa, GCC & The Americas
Ex-stock dispatch across India and beyond - we ship as bolt manufacturer to Dubai, Saudi Arabia and Malaysia.
Johannesburg, South AfricaDurban, South Africa
Nairobi & Mombasa, Kenya
Kampala, Uganda
Dubai, UAE
Dammam, Saudi Arabia
Calgary, Canada
Monterrey, Mexico
Singapore
Port Klang, Malaysia
Bangkok, Thailand
Ho Chi Minh City, VietnamMilitary Fasteners Applications
Industries specifying our fasteners most - among fasteners suppliers in Mumbai, our own forging unit skips trading-desk markup.
Best Fasteners Manufacturer In India - ISO 898-1 Hex Bolts Supplier In Ahmedabad
Domestic dispatch within 48 hours on ex-stock grades and sizes.
Marine Fasteners Delivery Timeline
Choose your freight route - as a trusted fasteners supplier in India, every batch ships with matched documentation.
Ex-Stock Dispatch
Ready-stock sizes leave our Mumbai unit in 1–3 working days
Sea Freight
Container or LCL shipment, typically 2–5 weeks by destination
Air Freight
4–8 days for urgent site shortages or shutdown orders
Country-Specific ETA
Send your destination port for a confirmed sailing date
Hot Forged Fasteners NABL Testing & Certification
Each check below is recorded on your mill test certificate and available on request before dispatch. Buyers ranking us the best fasteners company in India value MTC traceability.
Industrial Fasteners Frequently Asked Questions
Quick answers to what buyers ask us most before placing an order.
What standards do you manufacture fasteners to?
ASTM A193/A194, ISO 4014/4032, DIN 931/933/934 and IS 1364/1367, across property classes 4.6 to 12.9, with PED-compliant and RDSO-approved items available on request.
Are your fasteners RDSO approved?
Yes - select track and structural fastener categories carry RDSO vendor approval for supply to Indian Railways; share your item code and we confirm current approval status.
What is the difference between property class 8.8, 10.9 and 12.9 bolts?
Per ISO 898-1, 8.8 has 800–830 MPa minimum tensile strength, 10.9 has 1040 MPa, and 12.9 has 1220 MPa - each step up trades some ductility for higher clamping load capacity.
Do you supply military and aerospace fasteners?
Yes - we forge and machine to NAS, MIL and AN drawing specifications for approved defence and aerospace programs, with full material traceability.
Do you export fasteners to Africa, the Middle East and Southeast Asia?
Yes - we ship as manufacturer and stockholder to South Africa, the UAE, Kenya, Canada and 15+ other countries with full export documentation.
Authorized Supplier For The Following Companies - Material At Reseller Price For Traders
