• +(91) 022-6659 5844
  • sales@jigneshsteel.com

Stainless Steel Round Coupling Nuts and SS 304/ 316 Coupling Nut Bolt manufacturer in India

Coupling Nuts is also known as extension nuts. It is used to join two threaded rods or pipes, including threaded rods or pipes of varying sizes. It is usually constructed in a hex shape for wrench hold, the most common uses for coupling nuts are pushing a completed rod assembly outward or tightening rod assemblies. Coupling nuts threaded with two different thread sizes and profiles are called Reducing Coupling Nuts.

Stainless Steel Coupling Nuts variations include reducing coupling nuts, for joining two different size threads; sight hole coupling nuts, which have a sight hole for observing the amount of engagement; and coupling nuts with left-handed threads. Round Coupling Nuts has smooth rounded body for a finished look. It is used to connect and extend threaded rods. Metric Coupling Nuts is used to connect any two threaded items like two pieces of threaded rod. It has a coarse right-hand machine screw threads at both the ends. Its length is dependent upon size, which is about 3 times the size of the nut.

Long Coupling Nuts are used to make up long rod assemblies from shorter lengths of rods. For a certain distance the rods are threaded into the coupling nut. Hex Coupling Nuts are useful to attach two pieces of threaded material. It is threaded on right hand. If a right hand-left hand coupler is required, consider using a sleeve nut. Acme Coupling Nut is found in hand-powered clamps, vises, grates, doors, and work tables, lead screws. It has broad, square threads that are well suited for high clamping forces, quick assembly, and lifting and lowering heavy objects.

Coupling Nuts

Coupling Nuts

Round Coupling Nuts

Round Coupling Nuts

Stainless Steel Coupling Nuts

Stainless Steel Coupling Nuts

Manufacturer of All Thread Coupling Nut as per DIN 6334 standard, buy Metric Coupling Nuts in M3 M6 M4 M5 M8 M10 M12 sizes at factory price in India

Stainless Steel Coupling Nuts Specifications

Manufacturer & exporter of Stainless steel grade A2-70 / A4-70 Heavy Hex Coupling Nut in Acme Thread

Stainless Steel Coupling Nuts

DIN Standard of Coupling Nuts DIN 6334
Similar Standards
  • IFI 128 - 2000 Hex Coupling Nuts
  • ANSI/ASME B 18.2.2 - 2015 Hex Coupling Nuts (ASTM A563)
British standards of Coupling Nuts BS 57
Stainless Steel Coupling Nuts Size
  • Cold Forming process: M2-M24
  • Hot Forging process: M24-M100, 1-1/2” Dia, up to 1100mm lg
  • CNC Machining for M100 / 4” Dia, up to 1500mm lg

Manufacturing M2, M3, M3.5, M4, M5, M6, M8, M10, M12, M14, M16, M18, M20, M22, M24, M27, M30, M33, M36, M42, M45, M48 to M160 and Custom Metric Stainless Steel Coupling Nuts

Coupling Nuts Size Metric
  • Dia: M10 - M110
  • Length: 12 - 1200MM
Coupling Nuts Size Inch
  • Dia: 1/2" - 4.0"
  • Length: 1/2" - 52"
Standard

IS, ANSI, ASTM, DIN, ISO, JIS, GB, ASME, BS, UNI, CSN, EU, IFI, PN, and all International Standards

  • ANSI B 18.2.4 2M
  • ANSI B 28.2.4 1M
  • ANSI - American National Standards Institute
  • GB/T5783, GB/T5782, GB5783
  • American ASME
  • Indian IS
  • International ISO
  • American SAE
  • German DIN
  • Spanish CSN
  • British BS
  • Italian UNI
  • Polish PN
  • European EU
UTS - Unified Thread Standard UNC, UNF, NPT, UNS, UNEF, NPTF Coupling Nuts manufacturers in India
SS Coupling Nuts British standards
  • BS6105 A2-70 Coupling Nuts
  • BS6105 A4-70 Coupling Nuts
  • BS6105 A4-80 Coupling Nuts
  • BS6105 A2-50 Coupling Nuts
Length 3 mm to 200 mm
Stainless Steel Coupling Nuts US Threads UNJC, Constant-pitch threads, UNJF, Unified national extra fine (UNEF), BSF, UNK, UNR, METRIC, Unified national fine (UNF), Unified National Coarse (UNC), BSW
Metric Coupling Nuts Tolerances +/-0.01mm to +/-0.05mm
Coupling Nuts Surface Finish black oxide, Dacroment, Hot Dip Galvanised (HDG), Bright Zinc Plated (BZP), Plated zinc-nickel, Zinc, Nickel plated, Geometry, Self-Colour, Sherardized, Anodizing, Stainless Steel Passivated
Finish/ Passivation of Stainless Steel Coupling Nuts Accordance to ASTM A380/A380M
SS Coupling Nuts Dimensions ASME B 18.2.2
Stainless Steel Coupling Nuts Manufacturing process
  • Heading
  • Machining
  • Threading
  • Cold Heading
  • Heat treatment
  • Plating
  • Baking
  • Surface Plating
  • Inspection
  • Package
  • Shipping

Material Origin Stainless Steel Coupling Nuts are Western European. Eastern origin possible on request.
Stainless Steel Coupling Nuts Surface Coating
  • Ptfe Coated Coupling Nuts
  • Hot Dipped Galvanized
  • Phosphate
  • Teflon
  • Xylon
  • Zinc Phosphate
  • Manganese Phosphate
  • Zinc Electro Plating (Hexavalent or Trivalent Chrome)
  • ZAC (Zinc Alluminium Flake Coating)
  • Cadmium
  • ASTM A153 Zinc coating (hot dip)
  • ASTM B695 zinc coating
  • ASTM F1941 Electrodeposited coatings (Zinc plating).
  • ASTM F2329 Zinc coating, hot dip

All Coupling Nuts surface finishes can be supplied including Galvanised, Zinc, Sherardized, Dacromet, Electroless Nickel, Geomet & PTFE.

Common Coupling Nuts material grades
  • Stainless Steel Coupling Nuts: SS304 (L) SS316 (L) A2-70 A4-70, SUS301, A194 8M, A194 Grade 6, A194 7m, A194 Grade 8 Coupling Nuts
  • Carbon Steel Coupling Nuts : A194 Grade 1/ Grade 2, A194 2HM, A194 4, A194 Grade 7m/ 2H Coupling Nuts
  • Alloy steel Coupling Nuts: SCM435, C10B21, C10B33
  • High Tensile Coupling Nuts: 10.9 Grade, 12.9 Grade, 8.8 Grade Coupling Nuts
  • Brass Coupling Nuts: C36000 ( C26800), C37700 ( HPb59), C38500( HPb58), C27200CuZn37), C28000(CuZn40)
  • Bronze Coupling Nuts: C51000, C52100, C54400 etc
  • Aluminum Coupling Nuts: Al6061, Al6063 etc
  • Titanium Coupling Nuts: TAD, TA1-TA8, TB2, TC1-TC10
Coupling Nuts Surface treatment
  • Polish
  • Passivation
  • Black oxide coating
  • Anodizing
  • Sand blasting
  • Rust preventive oil
  • Heat-disposing
  • Hot dip galvanized
  • Electroplating color (blue, black zinc, white, Ni, Cr, copper, tin, silver)
Other Top Coupling Nuts Manufacturers Omni, APL, Unbrako, Kundan, Deepak Fasteners, Sundaram Precision, Infasco, Caparo, EBY Fastener, SPAX® Screws, GKW Etc.
Stainless Steel Coupling Nuts marking and Packing
  • Coupling Nuts Marking as per product specification
  • Wooden Pallet, Canton, Carton / Small Box or as required
  • Carton size : 36* 24 *16 CM & 36 *24 *12 CM  or as required
  • Pallet size: Standard Euro Pallet 110* 80 *90 CM
Why Jignesh Steel?
  • Based in India, established in Year 2008
  • Wide International network : Western Europe, Eastern Europe, Middle East, Southeast Asia, North America, and South America
  • Best Price in India compared to Coupling Nuts manufacturers in China
  • Highly professional and technical team
  • Always final Inspection before shipment
  • Pre-production Coupling Nuts sample before mass production
  • High precision threads
MOQ 5 pieces
Preferred Coupling Nuts Drawing Formats JPEG, PDF, CAD, STP, IGS
Test Certificates provided by Coupling Nuts manufacturers
  • Manufacturer Test Certificate (MTC) as per EN 10204 / 3.1,
  • Coupling Nuts Tensile testing to ISO 898-1
  • Hardness testing to ISO 6508-1
  • Suitability for preloading to EN 14399-2
  • Tri-Roll Thread Comparators
  • Coupling Nuts Charpy Impact testing in accordance with ISO 148-1
  • Suitability test for calibrated preload to EN 14399-10
  • Nut proof load testing to ISO 898-2
  • Calibrated gauges and tools
Free Samples Yes
Delivery time Regular product is about 7-15 days, custom product will according to special requirement
Payment Terms T/T, Western Union, Paypal, L/C or Trade Assurance 30% deposit & balance before shipping
Port of Dispatch Mumbai or Kalamboli ports in Maharashtra state of India
ISO - International Organization for Standardization
Find our dealers & distributors of Stainless Steel Coupling Nuts Jaipur, Nashik, Seoul, Mysuru, Pune, Ahvaz, Coimbatore, Lucknow, Khobar, Riyadh, Ranchi, Perth, Janeiro, Gujarat, Dammam, India, Dubai, Port-of-Spain, Panipat, Agra, Muscat, Courbevoie, Tau, Ahmedabad, Calgary, Shah Alam, Bengaluru, Doha, Surat, Ankara, Jamshedpur, Sydney, Tehran, Patna, Mumbai, Bangalore, Indore, Pimpri-Chinchwad, Montreal, Vapi, Chennai, Lagos, Vadodara, Houston, New Delhi, Vung Granada, Jakarta, Mexico, Noida, Manama, Thiruvananthapuram, London, Karachi, Hyderabad, Ernakulam, Howrah, Baroda, Gimhae-si, Singapore, Bogota, Istanbul, Abu Dhabi, Kanpur, Sharjah, Ludhiana, Bhubaneswar, Nagpur, Santiago, Kolkata, Rajkot, Melbourne, Kuwait, Brisbane, Navi Mumbai, Dhaka, Kuala Lumpur, Thane, Caracas, Gurgaon, Kochi
Coupling Nuts Application and Uses Industrial, Wind tower, Railway, Nuclear power, Construction, Electronic, and Automotive indutries, these end users prefer to buy from Coupling Nuts manufacturers in India
Most Popular Fasteners

DIN 6334 weight chart

DIN 6334 weight chart

Screw Thread
d
M6 M8 M10 M12 M14 M16 M18 M20 M22 M24 M27 M30 M36
P Pitch
s
L
1 1.25 1.5 1.75 2 2 2.5 2.5 2.5 3 3 3.5 4
10 13 17 19 22 24 27 30 32 36 41 46 55
18 24 30 36 42 48 54 60 66 72 81 90 108

Unit: mm

M6 Coupling Nut

Nominal Diameter
M6
P Pitch
s
L
1
10
18

M8 Coupling Nut

Nominal Diameter
M8
P Pitch
s
L
1.25
13
24

M4 Coupling Nut

Nominal Diameter
M14
P Pitch
s
L
2
22
42

M10 Coupling Nut

Nominal Diameter
M10
P Pitch
s
L
1.5
17
30

M12 Coupling Nut

Nominal Diameter
M12
P Pitch
s
L
1.75
19
36

Unit: mm

Stainless Steel Coupling Nuts Price List

Looking for Extra Long Coupling Nut manufacturer? Jignesh Steel produce Reducing, Round Threaded Coupling Nuts in 410/ 431/ 416/ 440C Stainless Steel grades

Products FOB Price US $
DIN6334 SS304 Hexagon Coupling Nut US $0.01-$0.50/ Piece
Din 6334 M12 M16 M24 Stainless Steel Coupling Nut US $0.01-$0.50/ Piece
SS Long Hex Coupling Nut US $0.01-$0.05/ Piece
Stainless Steel Round Coupling Nut (SS304 / 18-8) US $0.01-$0.10/ Piece
DIN 6334 Hexagon Coupling Long Nut US $0.01-$0.30/ Piece
M12 Long Hex Coupling Nut US $0.10/ Piece
DIN 6334 M2 M2.5 M3 M4 M5 M6 Brass / Stainless steel threaded long hex coupling nut US $0.01-$0.04/ Piece
Carbon steel galvanized Long Hex Coupling nuts US $0.05/ Piece
Zinc Plated Hex Coupling Nut Long Nut M8 M10 US $0.05/ Piece
Stainless Steel 304 hex coupling long nut US $0.01-$0.03/ Piece
DIN6334 M16 Long Hex Coupling Nuts US $0.01-$0.05/ Piece
Carbon Steel Long Hex Coupling Nut M2 US $0.01-$1.00/ Piece

Call us or send us an email to sales@jigneshsteel.com for more details.

Types of Coupling Nuts

Metric Coupling Nuts

Metric Coupling Nuts

Reducing Coupling Nuts

Reducing Coupling Nuts

Long Coupling Nuts

Long Coupling Nuts

Hex Coupling Nuts

Hex Coupling Nuts

Acme Coupling Nut

Acme Coupling Nut

All Thread Coupling Nut

All Thread Coupling Nut

Coupling Nuts Grade Markings

Understanding Coupling Nuts Grade and Classification

Coupling Nuts Grade
Identification
Marking
Coupling Nuts Specification Coupling Nuts Material Nominal Size ub Inches Coupling Nuts Proof
Load Stress ksi
Hardness
Rockwell
Min Max
Marking
No Mark
ASTM A563
- Grade 0
Carbon
Steel
1/4 thru
1-1/2
69 B55 C32
ASTM A563
- Grade A
Carbon
Steel
1/4 thru
1-1/2
90 B68 C32
ASTM A563 - Grade B Coupling Nuts Carbon Steel 1/4 thru 1 120 B69 C32
over 1
thru 1-1/2
105
Marking ASTM A563
- Grade C
Carbon
Steel
May be Quenched and Tampered
1/4 thru 4 144 B78 C38
Marking ASTM A563
- Grade C3
Atmospheric
Corrosion Resistant Steel May be Quenched and Tampered
1/4 thru 4 144 B78 C38
Marking ASTM A563
- Grade D
Carbon
Steel
May be Quenched and Tampered
1/4 thru 4 150 B84 C38
Marking ASTM A563
- Grade DH Coupling Nuts
Carbon
Steel
Quenched and Tampered
1/4 thru 4 175 C24 C38
Marking ASTM A563
- Grade DH3
Atmospheric
Corrosion Resistant Steel,Quenched and Tampered
1/4 thru 4 175 C24 C38
Marking ASTM A194
- Grade 1
Carbon
Steel
1/4 thru 4 130 B70 -
Marking ASTM A194
- Grade 2
Medium
Carbon Steel
1/4 thru 4 150 159 352
Marking ASTM A194
- Grade 2H Coupling Nuts
Medium
Carbon
Steel, Quenched and Tempered
1/4 thru 4 175 C24 C38
Marking ASTM A194
- Grade 2HM
Medium
Carbon
Steel, Quenched and Tempered
1/4 thru 4 150 159 237
Marking ASTM A194
- Grade 4
Medium
Carbon
Alloy Steel, Quenched and Tempered
1/4 thru 4 175 C24 C38
Marking ASTM A194
- Grade 7 Coupling Nuts
Medium
Carbon
Alloy Steel,Quenched and Tempered
1/4 thru 4 175 C24 C38
Marking ASTM A194
- Grade 7M
Medium
Carbon
Alloy Steel, Quenched and Tempered
1/4 thru 4 150 159 237

Stainless Steel Coupling Nuts Material and Grades

  • A4 Coupling Nuts
  • 310 Stainless Steel Coupling Nuts
  • ASTM A194 Grade 8 Coupling Nuts (304)
  • 304 Stainless Steel Coupling Nuts
  • A2-70 Coupling Nuts
  • 304H Stainless Steel Coupling Nuts
  • 18-8 Stainless Steel Coupling Nuts
  • ASTM A194 Grade 8m Coupling Nuts (316)
  • 316L Stainless Steel Coupling Nuts
  • 347 Stainless Steel Coupling Nuts
  • 17-4 PH Coupling Nuts
  • 316 Stainless Steel Coupling Nuts
  • 317L Stainless Steel Coupling Nuts
  • 18-8 Stainless Steel Coupling Nuts
  • 410 Stainless Steel Coupling Nuts
  • A2 Coupling Nuts
  • Duplex 2205 Coupling Nuts
  • 321 Stainless Steel Coupling Nuts
  • 304L Stainless Steel Coupling Nuts
  • 904L Stainless Steel Coupling Nuts
  • A4-70 Coupling Nuts
  • 316 Stainless Coupling Nuts
  • 4.8 Coupling Nuts
  • ASTM A194 8C Coupling Nuts (347)
  • ASTM A194 Grade 6 Coupling Nuts (410)
  • 8.8 Coupling Nuts
  • 317 Stainless Steel Coupling Nuts
  • A4-80 Coupling Nuts