SS 420 Nut and Bolts Manufacturing Profile
Inside Mortec
Established
Since 2012 • 15+ yrs experience
Manufacturing Units
2 in-house units • Taloja and Mazgaon
Stockyard Area
8850+ sq.ft • Ready-stock inventory
Certifications
ISO 9001:2015 and PED • GST IEC and MSME
Clientele
100+ clients • India andexport markets
Export Reach
15+ countries • Europe GCC and APAC
Testing Offered
Mechanical chemical and NDT • MTC EN 10204 3.1 and3.2
Shipment Documents
Invoice and Packing List • COO COI MTC BL and Lab Report
Table of Content
Extreme Hardness SS 420 Nut and Bolts Manufacturer in India
We stock annealed and hardened SS 420 fasteners in Mumbai. Type 420 provides high hardness for heavy industrial wear resistance. Our Mumbai factory manufactures and heat treats every single fastener order. Every batch undergoes positive material identification before cutting process starts. Spectro testing prevents mixing lookalike grades 420 and 410 fasteners. We store ready stock for quick dispatch through Nhava Sheva. Mill test certificates arrive along with your proforma invoice instantly. Custom lengths and special thread patterns are handled as standard orders.
Stainless Steel 420 Fasteners Specification
Buy directly from our factory with zero trader markups today. Custom ordering details are provided below for your reference now.
SS 420 Bolts Dimensional Standards
- ASME B18.2.1 / B18.2.2 / B18.3
- DIN 931 / 933 / 934 / 912 / 976
- ISO 4014 / 4017 / 4032 / 4762
UNS S42000 Screws Thread Tolerance Class
- ASME B1.1 Class 2A / 2B
- ISO 965 tolerance 6g / 6H
- Rolled or single-point cut threads
WNR 1.4021 Studs Head and Drive Styles
- Hex square pan button and countersunk
- Allen Torx slot and Phillips recess
AISI 420 Threaded Rod Length and Custom Work
- 8 mm to 1000 mm cut lengths
- Drilled heads slotted ends and tab washers
SUS 420 Washers Testing Scope
- PMI Rockwell and Brinell hardness
- Tensile and salt spray to ASTM B117
INOX 420 Nuts Packing and Head Marking
- VCI poly bags kegs and ISPM-15 cases
- Head stamp or laser etch to your text
SS 420 U Bolts Inspection and Declarations
- TPI by SGS BV TUV Lloyd’s and IRS
- RoHS REACH and origin declarations
420 SS Socket Head Cap Screw Free-Machining Variant
- Type 420F / UNS S42020 to ASTM A582
- Chosen for high-volume screw machine runs
420 Stainless Steel Fasteners Order Quantity
- Single-piece samples off ex-stock sizes
- Break-bulk or full-container quantities
Your Stainless Steel 420 Fasteners Partner In Middle East and GCC
Ready stock UNS S42000 bolts dispatched to buyers across the Gulf. Mill order sizes follow within weeks.
DubaiAbu Dhabi
RiyadhDammam
Doha
Muscat
Kuwait City
Manama
IstanbulSS 420 Bolts Manufacturing Standards
Head height across flats and thread runout are checked against these codes. Stainless Steel 420 Fasteners manufacturer in india.
Stainless Steel 420 Fasteners Types
One grade and twelve part families. All headed and threaded under one Mumbai roof.
SS 420 Bolts
DIN 931 / 933 • M6 to M36- Part or full thread rolled after heading
- Head stamped with heat number on request
UNS S42000 Screws
Machine and Self-Tapping- Pan csk button and cheese heads
- Case-hard tips for self-drilling patterns
WNR 1.4021 Studs
DIN 939 / 938 • Cut To Length- Double-end tap-end and full-thread studs
- Chamfered ends so the nut starts clean
AISI 420 Threaded Rod
DIN 975 / 976 • 1 m and 3 m- Straightness checked over the full length
- Cut down to any site length on request
SUS 420 Washers
DIN 125 / 127 • ISO 7089- Plain spring tab conical and fender
- Hardened faces for high clamp loads
INOX 420 Nuts
Nyloc • Castle • Flange • Dome- Nylon insert grades kept below 120°C
- All-metal lock nuts for hot service
ASTM A193 Type 420 Hex Bolts
ASTM A193 • Heavy Hex- Hardened and tempered for high preload joints
- Matched A194 nuts supplied on request
ASTM A193 Grade 420 Rivet
Solid and Semi-Tubular- Supplied soft so the tail sets cleanly
- Round csk and flat head profiles
ASTM A193 Gr 420 Dowel Pin
Ground • ISO 2338 / 8734- Centreless ground after hardening
- Chosen where wear and fit both matter
420 Stainless Steel Hex Nut
DIN 934 / ISO 4032 • M3 to M56- Full thin heavy and coupling patterns
- Tapped after tempering to hold the gauge
SS 420 U Bolts
Round and Square Bend- Bent to your pipe OD with nuts supplied
- Also made as J bolts and eye bolts
420 SS Socket Head Cap Screw
DIN 912 / ISO 4762- Deep hex socket resists cam-out
- Popular in mould and die assemblies
Stainless Steel 420 Fasteners Manufacturer In Mumbai Since 2012
Two in-house units head thread and harden your order. No trading layer sits in between.
UNS S42000 Screws Size Range and Thread Forms
These sizes move fastest off our racks. Other sizes are made to order within three weeks.
Diameter and Length Coverage
Thread Forms We Cut and Roll
SS 420 Fasteners Exports Across Europe And The UK
EN 10204 3.1 documented bar stock shipped to European fabricators. Every batch carries full heat traceability.
London
Milan
Rotterdam
Hamburg
Barcelona
GdanskWNR 1.4021 Studs Chemical Composition
Type 420 is a straight chromium martensitic stainless steel. Its carbon content sets it apart from 410. That carbon lets the grade harden fully.
EN 10088-3 X20Cr13 / WNR 1.4021
JIS G4303 SUS 420J1
AISI 420 Threaded Rod Mechanical Properties
Type 420 strength depends on its heat treatment. These values apply after hardening and tempering.
Annealed Condition As Supplied For Machining
Physical Properties Common To Both Conditions
SUS 420 Washers Material Equivalent
As a Stainless Steel 420 Fasteners exporter in Mumbai, we quote to nine national designations. Use the card that matches your drawing standard.
ASTM / AISI (USA)
- AISI 420 / UNS S42000
- ASTM A276 (Bar and Shapes)
- ASTM A493 (Cold Heading Wire)
- ASTM A582 Type 420F (S42020)
DIN / EN (Germany)
- Werkstoff 1.4021
- X20Cr13
- EN 10088-3
- 1.4028 / X30Cr13 (higher C)
JIS (Japan)
- SUS 420J1
- SUS 420J2 (higher C)
- JIS G4303 (Bar)
- JIS G4308 (Wire Rod)
BS (United Kingdom)
- 420S37
- 420S45 (higher C)
- En56A / En56C (old BS 970)
GOST (Russia)
- 20Х13 (20Kh13)
- 30Х13 (30Kh13 higher C)
AFNOR (France)
- Z20C13
- Z30C13 (higher C)
UNI (Italy)
- X20Cr13
- Follows EN 10088-3
SS (Sweden)
- SS 2303
- Follows EN 10088-3
GB (China)
- 20Cr13 / 2Cr13
- 30Cr13 / 3Cr13 (higher C)
SS 420 Bolts Exporter In India Shipping To Jebel Ali UAE
Container-ready packing and the full export file are issued early. Both reach you before vessel booking.
Keep PMI Verified Ready Annealed & Hardened WNR 1.4021 Studs and Threaded Rod Stock in Mumbai
420 SS Socket Head Cap Screw Ready Stock
Two Mumbai units hold Type 420 bar and finished parts. Every heat is PMI verified before it enters the stockyard.
| Product Form | Annealed Condition A | Hardened And Tempered | Hardness |
|---|---|---|---|
| Threaded Rod | M6 to M36 | M8 to M24 | 241 HBW max or 50 HRC |
| Stud Bolts | M8 to M30 | M10 to M24 | 241 HBW max or 50 HRC |
| Hex Bolts | M6 to M36 | M8 to M24 | 241 HBW max or 50 HRC |
| Hex Nuts | M6 to M30 | M8 to M24 | Matched to bolt hardness |
| Set Screws | M4 to M16 | M4 to M16 | Around 50 HRC |
| Dowel Pins | Not held | 3 mm to 20 mm | Around 50 HRC |
Stainless Steel 420 Fasteners Supply Across India
Ready stock dispatch from our Mumbai unit to fabricators nationwide. Most orders leave within 3 working days.
Annealed Or Hardened INOX 420 Nuts Which To Order
This is the most common ordering mistake on Type 420 enquiries. The wrong condition arrives too soft or too hard to work.
Annealed Condition A
- Hardness: 241 HBW max at roughly 22 HRC
- Machinability: Good as it taps and turns cleanly
- Wear Resistance: Low
- Order It When: You will cut bend or heat treat in-house
- Typical Parts: Rivets blanks and threaded rod stock
Hardened and Tempered
- Hardness: Approx. 50 HRC after low-temperature temper
- Machinability: Poor so grind rather than cut
- Wear Resistance: High and the reason 420 is chosen
- Order It When: The part goes straight into service
- Typical Parts: Set screws dowel pins and valve trim studs
Anneal
Heat 840 to 900 °C. Slow furnace cool to about 600 °C then air.
Form and Thread
Head turn and roll threads while the steel is still soft.
Harden
Austenitise at 980 to 1035 °C. Then oil quench or air cool.
Temper
150-370 °C to set the final hardness and relieve stress.
ASTM A193 Gr 420 Dowel Pin SS 420 vs SS 410 vs SS 431
All three grades look identical but differ in chromium and carbon. This decides their hardness and outdoor life.
SS 410 / UNS S41000
- Carbon 0.15% max with Chromium 11.5 to 13.5%
- ISO 3506 martensitic class C1
- Lower hardness ceiling than 420
- The general-purpose martensitic bolt
SS 420 / UNS S42000
- Carbon 0.15% minimum with Chromium 12.0 to 14.0%
- Not covered by an ISO 3506 property class
- Highest hardness of the three at approx. 50 HRC
- Chosen for wear galling and edge holding
SS 431 / UNS S43100
- Carbon 0.20% max with Chromium 15.0 to 17.0%
- Nickel 1.25-2.50% added
- ISO 3506 martensitic class C3
- Best corrosion resistance of the three
From Houston To Caracas SS 420 Fasteners On Demand
Hex bolts set screws and dowel pins packed for the Americas. Container or LCL both work.
HoustonChicago
TorontoMontreal
Mexico City
Sao Paulo
CaracasWhere A UNS S42000 Screws Works and Where It Fails
Type 420 is the least corrosion resistant stainless family. Here is where it works and where it fails.
Suitable Service
Specify A Different Grade Instead
Export Papers and Country Compliance Pack
A held container costs more than the fasteners inside it. Stainless Steel 420 Fasteners exporter in india.
Standard document set issued with every export consignment:
SS 420 U Bolts Applications
Type 420 is specified where hardness and wear life matter. Seawater resistance is a lower priority.
ASTM A276 Type 420 Fasteners Supplier In Chennai With PMI-Verified Heats
Each heat is spectro-checked and logged. Nothing leaves the stockyard untested.
SS 420 Fasteners Ready To Ship Across Africa
Container ready shipments for buyers across North East and Southern Africa. Full export documentation included.
JohannesburgDurban
Mombasa
Lagos
Cairo
Algiers
Casablanca
Kampala420 SS Socket Head Cap Screw Price Factors
Four things move the per-piece rate on a Type 420 fastener. Share all four for a firm quote.
AISI 420 Dowel Pin Manufacturing Process
As a Stainless Steel 420 Fasteners manufacturer in Mumbai, we run every piece through the same four stages.
Stock Preparation
ASTM A493 wire or A276 bar drawn and softened for heading.
Heading and Turning
Head upset cold or hot forged. Shank sized on CNC.
Threading
Threads rolled for strength or single-point cut for specials.
Harden Test and Mark
Quench temper PMI and hardness check. Then heat-number stamp.
420 Stainless Steel Fasteners Delivery Estimate By Shipping Mode
As your Stainless Steel 420 Fasteners supplier in Mumbai, we start the clock when payment clears. Not on the day of enquiry.
Ex-Stock Dispatch
Standard metric and inch sizes leave our Mumbai stockyard. Dispatch takes 3 to 5 working days
Sea Freight
The economical route for kegs drums and pallets. Roughly 12 to 30 days at sea
Air Freight
Wheels-down in 4 to 8 days. Best when a breakdown is holding the line
Country-Specific ETA
Name your discharge port today. We will put a dated arrival on the proforma
Growing Our Stainless Steel 420 Fasteners Reach Into Southeast Asia
Regular ready stock and mill order shipments to Southeast Asian fabricators. Sea and air freight both available.
Singapore
Bangkok
Manila
Kuala Lumpur
Jakarta
Ho Chi Minh CityASTM A193 Type 420 Hex Bolts Testing and Certification
Each check is available on request and recorded against your heat number. Stainless Steel 420 Fasteners supplier in india.
WNR 1.4021 Studs Supply References
Recent Type 420 dispatches across Gulf African European and North American accounts.
M20 SS 420 U Bolts For Conveyor Frame Anchors
Hardened and tempered with PMI verified EN 10204 3.1 MTC.
Mining Equipment Fabricator in South Africa
DURBAN SOUTH AFRICAM8 × 12 SS 420 Set Screws For Pump Impeller Locking
Cup point at approx. 50 HRC and third-party witnessed.
Rotating Equipment Workshop in UAE
DUBAI UAE½″ UNC SS 420 Hex Bolts For Crusher Liner Fixing
Annealed supply for on-site heat treatment with full traceability.
Quarry Plant Contractor in Kenya
MOMBASA KENYA6 mm AISI 420 Dowel Pins For Injection Mould Tooling
Centreless ground after hardening with dimensional report issued.
Tool Room Supplier in Canada
TORONTO CANADAM4 UNS S42000 Screws For Instrument Handle Assembly
Passivated and salt spray tested to ASTM B117. RoHS declared.
Medical Device Assembler in Germany
HAMBURG GERMANYM24 WNR 1.4021 Studs For Valve Bonnet Bolting
Hardness band certified per heat with nuts supplied matched.
Valve Manufacturer in Saudi Arabia
DAMMAM SAUDI ARABIASS 420 Nut and Bolts FAQs
Five questions come up on nearly every Type 420 enquiry. All are answered plainly below.
What sizes and thread types are available in SS 420 Bolts?
- M3 to M64 in metric coarse and fine pitch.
- UNC and UNF threads on request for imperial drawings.
- Custom lengths and non-standard heads made to your spec.
What surface finish options do 420 Stainless Steel Fasteners come in?
- Standard mill or black finish straight off the forging line.
- Passivated finish available for better corrosion resistance.
- Polished or electro-polished on request for visible applications.
Where are UNS S42000 Screws typically used?
- Cutlery surgical instruments and turbine blade fittings.
- Valve and pump components needing wear resistance.
- Molds dies and other tooling under moderate load.
What is the minimum order quantity for WNR 1.4021 Studs?
- No fixed MOQ and small trial orders accepted.
- Bulk pricing improves significantly above 500 kg.
- Mixed-size consolidated shipments possible in one container.
What lead time applies to an AISI 420 Threaded Rod order?
- Stock sizes ship within 3 to 5 working days.
- Custom or hardened batches take 2 to 3 weeks.
- Export documentation prepared in parallel to avoid delay.