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Duplex Steel UNS S31803, S32550, S32750, S32205, S32760 Fasteners Nut

Duplex Steel UNS S31803, S32550, S32750, S32205, S32760, Alloy 2205, F60, F51, F61, F55, F53 - Stainless Steel Fasteners Auto Lock Nuts : Agent, Exporter, Dealer, Distributor, Stockist, Stockholder and Supplier in India : 

• We at MD Exports LLP is known for guaranteed fast delivery of the Duplex 2205 Fasteners to South Africa, West African Countries, Russia& in entire Gulf Countries. The main reason being we have an excellent warehousing and storage facilities in India,UAE,Korea& Gauteng(South Africa).They are made ready as per the urgent requirements of the customers. The Duplex Steel 2205 Fasteners are manufactured to sustain very high pressure and product warranty.
• Lot of emphasis is placed on the packaging. The Duplex Steel 2205 Fasteners are packed in wooden corrugated boxes foiled in plastic wraps and bubble wraps.
• Duplex Steel 2205 Fasteners are offered with a NACE 3.1 Certification, Mill Test Certification and ISO 17025 Standards by a Government of India approved Laboratory. Positive Material Identification is done on all raw material procured at MD Exports LLP.
• MD Exports LLP have exported Duplex Steel 2205 Fasteners  to over 60 countries including Sudan, UAE, UK, Iran, Iraq, Qatar, Bahrain, Oman, Yemen, Lebanon, Jordan, Saudi Arabia, Malaysia, Indonesia, Singapore, Australia, New Zealand, USA, Canada, Mexico, Brazil, Netherlands, Germany, Italy, Spain, Serbia, Kuwait, Peru, Nigeria, Poland, South Africa, Denmark, Turkey, Egypt, Venezuela, Kuwait, Madagascar, Angola& , Srilanka.
• The Duplex Steel 2205 Fasteners are used in Hardware, Petro-Chemical Industry, Oil and Gas Industry, Nuclear Industry, Pulp & Paper Industry, Research & Development , Mega Projects & Defense & Development Industries. In fact wing to the special grade of steel Duplex Steel 2205 Fasteners are used for all critical applications.
• Duplex Steel 2205 is the easily the most selling Grade of Duplex Steel Series due to the excellent properties and general usage in highly corrosive environment. We have more than 2 decades of experience in serving Stainless Steel & other alloys specially Fasteners, Bolts, Nuts, Studs etc. Majorly used in the Oil and Gas Industry.
• In 2016 we have ready stock of more than 50 tons of Duplex Steel 2205 Fasteners in all sizes, in Seamless and Welded to cater to immediate delivery and urgent needs of the clients. For small requirements we can dispatch the Fasteners immediately against the purchase order

Auto Lock Nuts / Stover lock nuts

Stover lock nuts are one piece, all-metal prevailing torque hex nuts with a conical top and a flat bottom bearing surface with chamfered corners. The locking action, created by distortion of their top threads, is said to be capable of withstanding severe vibration and shock loads. Since they are top locking and only the bottom surface is flat, Stover lock nuts are considered one way lock nuts because they are installed one way—top up. Being all-metal, they do not have the temperature and chemical limitations of non-metallic (such as nylon) insert type lock nuts. Used in the automotive, agricultural equipment and metalworking industries, their cone shape allows for proper orientation during automated assembly making them popular for high volume applications. Stover lock nuts are also called: 
automation lock nuts, Autolock nuts, Crownlock nuts, Unitorque nuts.

Lock washers are not used with prevailing torque lock nuts.

By definition, "Prevailing-torque locking fasteners have a self-contained feature which creates frictional interference between the threads of the mating components." Consequently, unlike free spinning lock nuts, there is a resistance to rotation during both assembly and disassembly requiring them to be wrenched; that resistance is called prevailing torque. The advantage is that disassembly is unlikely even if preload diminishes completely because of the remaining rotational resistance. Despite the fact they are called "lock nuts," Stover lock nuts are not permanently locked in place so they can be adjusted or removed after installation. And because they stay put without being seated, they are used as stop nuts or spacers for rotating or other components.

Threads are standard right-hand and Unified inch coarse series (UNC, Unified National Coarse) or Unified inch fine (UNF, Unified National Fine).

Stover lock nut size refers to its nominal thread diameter. Typically, sizes range from about 1/4" to 1". Size is specified in inches, usually fractional rather than decimal.

Grade T9, Cadmium Dichromate Plated, is a common grade and finish. Never replace a graded Stover lock nut with a lower grade or lower strength nut.

Nut width and thickness vary with the size of the Stover lock nut.

The nuts spin freely until their distorted top threads engage the threads of the mating part. For the locking action to be effective, the locking element must contact fully formed threads so several threads of a standard bolt/screw should extend beyond the top of the nut.

Stover lock nuts are reusable a limited number of times because the prevailing torque declines each time the nut is used. Always follow the manufacturer's recommendations regarding nut reuse, thread lubricants and torque values. Do not apply standard torque values to prevailing torque lock nuts because the joint may not be tightened to the correct clamping force due to the additional friction of the locking element.

Generally, prevailing torque lock nuts are not considered suitable for long threaded assemblies because extended nut travel along the threads could damage the nut's locking feature or the mating threads. Therefore, the length of the bolt/screw should not be much longer than that needed to ensure full thread engagement with the nut.

Din 980V Stover Nut is a hex all-metal prevailing torque self-locking nut, which is available in grades 8, 10 and 12 with thread diameters from M4 to M48 in standard pitch, fine pitch and extra find pitch.

Din 980V Stover Nuts are vibration resistant self-locking nuts. The self-locking function of the Din980V Stover Nut is still effective after a number of applications meaning it can be reused many times and is resistant to shocks, vibration and dynamic loads.

The locking function of the Din 980V Stover Nut is achieved by the deformation of part of the nut. The nut will run smoothly until it reaches the deformed part after which the clamping force will subsequently increase.

Auto Lock Nuts Dimensions

THREAD	S	H	M	STD PITCH	FINE	XTRA FINE
M4	7	4	2.5	0.7	-	-
M5	8	5	3.5	0.8	-	-
M6	10	6	4.5	1.0	-	-
M8	13	8	6.0	1.25	1.0	-
M10	17	10	7.5	1.5	1.25	1.0
M12	19	12	8.5	1.75	1.5	1.25
M14	22	14	11.5	2.0	1.5	-
M16	24	16	12.5	2.0	1.5	-
M18	27	18	14.0	2.5	2.0	1.5
M20	30	20	15.4	2.5	2.0	1.5
M22	32	22	16.9	2.5	2.0	1.5
M24	36	24	18.5	3.0	2.0	1.5
M27	41	27	20.8	3.0	2.0	1.5
M30	46	30	23.1	3.5	2.0	1.5
M33	50	3	25.4	3.5	2.0	1.5
M36	55	36	27.2	4.0	2.0	1.5

Duplex Steel 2205 Nuts Available Types

2-H Heavy Hex Nuts Acorn Nuts Heavy Hex Nuts Jam Nuts Kep Nuts Nylon Insert Locknuts Slotted Nuts High Nut Castle Nut Serrated Flange Nut Auto Locknuts Coupling Nuts Square Nuts Wing Nuts Flange Lock Nut Flex Lock Nut 2 Way Lock Nut Cap Nut K Lock Nut T Tee Nuts

Super Duplex Steel Auto Lock Nuts

duplex stainless f51 f53 f55 f44 f904l fasteners bolt nut screw stud washer bolts nuts fastener threaded rod rods screws studs washers Bolt:

M6-M64; Nut: M3-M64 ;
Threaded Rod:4-2000mm (all thread, double end thread) 
Standards: DIN 931, DIN 933, DIN 934, DIN 439, DIN 835, DIN 7991, DIN 975, DIN 976, DIN 912, ISO, JIS, ANSI/ASME, BS, etc 
Packing : Plywood case or wooden box

Exported countries: United States, Germany, Saudi Arabia, South Korea, Kuwait, Turkey, United Arab Emirates, Oman, Egypt, Indonesia, Malaysia, Singapore, Thailand, Sri Lanka, Russia, West Africa& Latin Americaetc

Duplex Stainless Steel Fasteners	Super Duplex Stainless Steel Fasteners
Duplex Steel Nuts Alloy 2205 Nuts SAF 2205 ® Nuts 1.4462 Nuts S32205 Nuts F60 Nuts 31803 Nuts 1.4462 Nuts S31803 Nuts F51 Nuts	Super Duplex Nuts / Alloy 255 Nuts Ferralium 255 ® Nuts European 1.4507 Nuts UNS S32550 Nuts / UNS S32750 Nuts ASTM/ASME F61 Nuts / ASTM/ASME F55 Nuts / F53 Nuts Zeron 100 Nuts / Zeron 100 ® Nuts European 1.4501 Nuts UNS S32760 Nuts Alloy 2507 Nuts / SAF 2507 ® Nuts European 1.4410 Nuts

 

Duplex Steel Auto Lock Nuts Dimensions

Duplex Auto Lock Nuts

Duplex

Alloy	Common Name	Related Specifications
		European	UNS	ASTM/ASME
Alloy 2205	SAF 2205 ®	1.4462	S32205	F60
31803	31803	1.4462	S31803	F51

MD Exports LLP produces duplex fasteners in all grades of duplex, to customer specification. Duplex grades are a mixed microstructure of Austenite and Ferrite, combining the properties of both (hence the name DUPLEX). Duplex stainless steels have high corrosion resistance as well as a high strength. Mechanical properties are around double that of a typical austenitic grade such as 316. They would also normally offer higher stress cracking resistance in Chloride solutions for example. They are composed typically of 22% Chromium, 5 % nickel. Having worked with duplex since its outset, the duplex bolting continues to account for a core part of our business, along with Super duplex.

Super Duplex Steel Auto Lock Nuts Price

Super Duplex Steel Fasteners / Nut / Bolts / Washer / Screws
Min. Order: 1 Piece
FOB Price: US $1 to 100 (Fastener Available in Every Size)
Production Capacity: 500 Ton/Tons per Month
Tags : Super Duplex Steel Fasteners / Super Duplex Steel Nut / Super Duplex Steel Bolts / Super Duplex Steel Washer / Super Duplex Steel Screws

Duplex Steel 2205 Nuts Available Types
2-H Heavy Hex Nuts Acorn Nuts Heavy Hex Nuts Jam Nuts Kep Nuts	Nylon Insert Locknuts Slotted Nut High Nut Castle Nut Custom Nut Serrated Flange Nut	Auto Locknuts Coupling Nuts Slotted Nuts Square Nuts Wing Nuts	Flex Lock Nut 2 Way Lock Nut Cap Nut K Lock Nut T Tee Nuts Flange Lock Nut

 

SURFACE COATINGS
Mirror Buffed	Hot Dipped Galvanizing	Epoxy Coating	Electro Polished	Passivation
Teflon Coating	Oxidized	Zinc Plating	Chrome Plating

Fasteners Specialist

• FASTENERS : ASTM FASTENERS

  Fasteners ASTM & SAE Specifications ASTM A36 ASTM A153 ASTM A193 ASTM A194 ASTM A307 ASTM A320 ASTM A325 ASTM A354 ASTM A449 ASTM A490 ASTM A563 ASTM A572 ASTM A588 ASTM B695 ASTM F436 ASTM F593 ASTM F594 ASTM F844 ASTM F1554 ASTM F1941 ASTM F2329 SAE J429

• FASTENERS : BOLTS

  Bolts Hex Bolts, Heavy Hex Bolts, Structural Bolts, Square Bolts, Timber Bolts, Hex Lag Screws, Square Lag Screws, Carriage Bolts, Timber Spikes, Machine Bolts, Washer Head Bolts, Round Head Bolts, Countersunk Bolts, Step Bolts, Headed Anchor Bolts, Custom Heading.

• FASTENERS : WASHER AND ANCHOR RODS

  Washer Standard Flat Washers, Hardened Round Washers, Lock Washers, Malleable Iron Washers, Round Plate Washers, Square Plate Washers, Ogee Washers, Beveled Washers, Hardened Beveled Washers, Anchor Rods Anchor Rods, Swedged Rods, Tie Rods, All-Thread Rods, Drift Pins, Threaded Rebar.

• FASTENERS : ANCHOR BOLTS

  Anchor Bolts 90 Degree Anchor Bolts, U-Bolts (Round Bend), Eye Bolts (Closed), Hook Bolts (Square Bend), U-Bolts (Square Bend), Eye Bolts (Open), Hook Bolts (Round Bend), J-Bolts, Hook Bolts (Special).

• FASTENERS : NUTS

  Fasteners Nuts Finished Hex Nuts, Heavy Hex Nuts, Square Nuts, Finished Jam Nuts, Heavy Hex Jam Nuts, Sleeve Nuts, Hex Coupling Nuts. 2-H Heavy Hex Nuts, Acorn Nuts, Heavy Hex Nuts, Jam Nuts, Kep Nuts, Nylon Insert Locknuts, Slotted Nut, High Nut, Castle Nut, Custom Nut, Serrated Flange Nut, Auto Locknuts, Coupling Nuts, Slotted Nuts, Square Nuts

• FASTENERS : BOLTS

  Anchor Bolt, Elevator Bolt, Tap Bolts, Hex Cap Screws, Stove Bolt, Wedge Anchors, Flat Head Cap Screws, Hanger Bolt, Socket Cap Screw, L-9 Hi-Head Cap Screws, U Bolt, Plow Bolts, Shoulder Bolt, Flange Bolt, SQ Head Set Screws.

• FASTENERS : SCREWS

  Machine Screws, Tapping Screws, Wood Screws, Self Drilling Screws, Thread Cutting, Stainless Steel Screws, Hastelloy Screws, Inconel Screws, Copper Screws, Titanium Screws, Alloy Steel Screws, Monel Screws, Nickel Screws, Brass Screws, Duplex Steel Screws, Super Duplex Steel Screws.

• FASTENERS : NUTS

  Wing Nuts, Miscellaneous Nuts, Flex Lock Nut, 2 Way Lock Nut, Cap Nut, K Lock Nut, T Tee Nuts, Flange Lock Nut, Stainless Steel Nuts, Alloy Steel Nuts, Monel Nuts, Nickel Nuts, Brass Nuts, Duplex/Super Duplex Steel Nut, Hastelloy Nuts, Inconel Nuts, Copper Nuts, Titanium Nuts

• FASTENERS : BOLTS

  J Bolt, Draw Bolt, Toggle Bolts, Carriage Bolts, Machine Bolt, Hex Head Bolt, Hex Bolts, Grub Screw, Lag Bolts, Set Screw, Eye Bolt, Scraper Blade Bolts, Step Bolt, Copper Bolts, Stainless Steel Bolts, Inconel Bolts, Titanium Bolts, Monel Bolts, Brass Bolts, Nickel Bolts, Alloy Steel Bolts, Duplex & Super Duplex Steel Bolts, Hastelloy Bolts.

Origin Of Material

Brand Name : We are Dealer, Distributor, Stockist, Stockholder and Supplier of Below Brand Products
http://www.columbus.co.za : COLUMBUS in SOUTH AFRICA: Lean Duplex Steel - e.g. 2001/1.4482 / 2304/1.4362 / Standard duplex Steel e.g. 2205/1.4462.
http://www.sandmeyersteel.com: SANDMEYER STEEL ( USA & CANADA): Alloy 2205Duplex Stainless Steel Plates/ Alloy 2507 Duplex Stainless Steel Plate Manufacturers -
http://www.jindalstainless.com/ : JINDAL ( JSL INDIA ): Duplex Steel Sheet PlatesManufacturers ---
http://www.aalco.co.uk/: AALCO in UKStainless Steel Pipes Tubes Manufacturers --
http://www.sail.co.in/: SALEM Productsin INDIA : Duplex Steel Sheet Plate Coils Manufacturers ---
http://www.specialsteelgroup.com/: SPECIAL STEEL LTD(UK): Duplex Stainless Steel Round Bar, Fastener Bolts Nuts & Flat Bar Manufacturers
http://www.pennstainless.com/: PENN STAINLESS( USA ) : Duplex Stainless Steel 2205& 2507 : Penn Stainless inventory now includes Duplex 2205 (UNS S32205 / S31803), in sheet, coil, plate, plate coil, round bar, processed flat bar and tubular products
http://www.nssmc.com/en/ : NIPPON STEEL & SUMITOMO METALS( JAPAN ) : Duplex Steel 2205& 2507 Sheet Plates Manufacturers ---
http://www.outokumpu.com/: OUTOKUMPU ( FINLAND & INDIA ) : Duplex Steel 2205 & 2507 Coil and sheet, Bar, Welded pipe & Plate Manufacturers ---
http://megamex.com/: MEGAMEX ( TEXAS USA ) : Mega Mex supplies LDX2101, 2205, Ferralium 255, Zeron 100 and 2507 in the form of plate, sheet, strip, bar, pipe, tubing, pipe fittings, flanges and weld wire.
http://www.schoeller-bleckmann.co.uk/: SCHOELLER BLECKMANN ENGLAND & DUBAI: Schoeller-Bleckmann (UK) is a major stockholder and distributor of Stainless Steel Tube, Pipe & Hollow Bar.
http://smt.sandvik.com/en-in/: SANDVIK ( SWEDEN & INDIA ) : Duplex stainless steels / Sandvik SAF 2507, Sandvik SAF 2707 HD, Sandvik SAF 3207 HD / TUBE, PIPE, FITTINGS AND FLANGES Manufacturers in SWEDEN
http://www.tiogapipe.com/: TIOGA ( USA ) : Duplex Steel Pipe 2205 S31803/ S32205, A790 / SA790, Duplex Steel 2205 S31803 / S32205 , A815 / SA815, A182 / SA182 Fittings, Duplex Flanges Duplex 2205 S31803 / S32205, A182 / SA182 Manufacturers in Houston
http://www.specialpipingmaterials.com/duplex/: SPECIAL PIPING MATERIAL ( UK, ENGLAND, SCOTLAND, SINGAPORE, USA, AUSTRALIA, DUBAI, BRAZIL ) : High quality exotic piping products from approved manufacturers : Seamless Duplex 2205 Pipe, Welded Super Duplex Pipe, Super Duplex (both S32760 and S32750 / 2507 Buttweld Fittings, Flanges, Forged Fittings Manufacturers
http://www.langleyalloys.com/ : Langley Alloys : Duplex Stainless Steels Products Manufacturers
http://www.rolledalloys.com/: Rolled Alloys, Inc: Duplex Stainless Steel Pipes TubesManufacturers

Our Clients

Products	Duplex Steel Flanges, 2205and 2507 Grades.
Industry We Serve	Duplex Stainless Steel Flanges Supplied Oil & Gas Industry, Petrochemical Companies, Seashore Industries, Refinery, Petroleum Refineries, Oil Refining Industry, Beverage, Water Piping Systems, Acid & Chemical Plants, Pharmacy Industry etc..
Country	More Then 2700 CLIENT OFDuplex Stainless Steel Flanges in Kuwait, Peru, UK, Singapore, Poland, Iraq, Malaysia, Serbia, Turkey, Yemen, Australia, Lebanon, Oman, Srilanka, Egypt, Angola, Canada, Madagascar, Saudi Arabia, Indonesia, UAE, Italy, Jordan, USA, Brazil, Nigeria, South Africa, Mexico, New Zealand, Netherlands, Germany, Venezuela, Iran, Denmark, Spain, Bahrainetc....
Products	Duplex Steel 2205and 2507 Pipe
Industry We Serve	production & transportation of Oil & Gas : Duplex 2205 Stainless Steel Pipes for Industrial Use in Architecture, Building, Construction, Transportation, Chemical, Energy, Seaports, Seashore, Catering and Process Industry.
Country	More Then 1900 CLIENTSof Duplex Stainless Steel Pipes & Tubes in Kuwait, Peru, UK, Singapore, Poland, Iraq, Malaysia, Serbia, Turkey, Yemen, Australia, Lebanon, Oman, Srilanka, Egypt, Angola, Canada, Madagascar, Saudi Arabia, Indonesia, UAE, Italy, Jordan, USA, Brazil, Nigeria, South Africa, Mexico, New Zealand, Netherlands, Germany, Venezuela, Iran, Denmark, Spain, Bahrain etc....
Products	Duplex Steel TubingSupplied to
Industry We Serve	Heat exchangers Manufacturers & cooling pipes Manufacturers Industry.
Country	More Then 1700 CLIENTS OFDuplex Stainless Steel Tubing in Kuwait, Peru, UK, Singapore, Poland, Iraq, Malaysia, Serbia, Turkey, Yemen, Australia, Lebanon, Oman, Srilanka, Egypt, Angola, Canada, Madagascar, Saudi Arabia, Indonesia, UAE, Italy, Jordan, USA, Brazil, Nigeria, South Africa, Mexico, New Zealand, Netherlands, Germany, Venezuela, Iran, Denmark, Spain, Bahrain etc....
Products	Duplex Steel Sheet & Plate
Industry We Serve	storage tanks manufacturers, pharmaceutical or food processing Industry, pulp and paper industry (Duplex stainless steel plate USE: Duplex stainless steel plate is often used for storage tanks. High corrosion and erosion resistance is a must for storage tanks, whether the designer wants to prevent leakage during desalinization, avoid contamination in pharmaceutical or food processing, or store chips as well as black and white liquor for the pulp and paper industry.)
Country	More Then 2800 CLIENTS OFDuplex Steel Plates., We Supplied Duplex Stainless Steel Plates in Kuwait, Peru, UK, Singapore, Poland, Iraq, Malaysia, Serbia, Turkey, Yemen, Australia, Lebanon, Oman, Srilanka, Egypt, Angola, Canada, Madagascar, Saudi Arabia, Indonesia, UAE, Italy, Jordan, USA, Brazil, Nigeria, South Africa, Mexico, New Zealand, Netherlands, Germany, Venezuela, Iran, Denmark, Spain, Bahrain etc....
Products	Duplex Steel 2205& 2507 Bolts, Duplex Steel 2205& 2507 Washer, Duplex Steel 2205& 2507 Screws, Duplex Steel 2205& 2507 Nuts
Industry We Serve	Duplex Steel Fasteners used in Oil & Gas Industry, Petrochemical, structural & mechanical
Country	More Then 3200 CLIENTS OFDuplex Stainless Steel Fasteners in Kuwait, Peru, UK, Singapore, Poland, Iraq, Malaysia, Serbia, Turkey, Yemen, Australia, Lebanon, Oman, Srilanka, Egypt, Angola, Canada, Madagascar, Saudi Arabia, Indonesia, UAE, Italy, Jordan, USA, Brazil, Nigeria, South Africa, Mexico, New Zealand, Netherlands, Germany, Venezuela, Iran, Denmark, Spain, Bahrain etc....

We have exported our material to numerous countries in the world including but not limited to Kuwait, Peru, UK, Singapore, Poland, Iraq, Malaysia, Serbia, Turkey, Yemen, Australia, Lebanon, Oman, Srilanka, Egypt, Angola, Canada, Madagascar, Saudi Arabia, Indonesia, UAE, Italy, Jordan, Qatar, USA, Brazil, Nigeria, South Africa, Kuwait, Mexico, New Zealand, Netherlands, Germany, Venezuela, Iran, Denmark, Spain, Bahrain & many other countries....