Super Duplex Fasteners

Manufacturer of SDSS Hex Bolt in India at Best Price, Check Specification

Super Duplex Bolts

Super Duplex Screws

Super Duplex Threaded Rod
What Issues Can Buyers Face During Machining of Super Duplex Bolts From Km Steel India?
- High Work-Hardening Tendency
- Low Thermal Conductivity
- Tool Wear and Galling
- High Strength and Toughness
- Difficulty in Threading and Tapping
Table of Content
- Super Duplex Fasteners Specifications
- Types of Super Duplex Fasteners
- Common Trade Name of Super Duplex Stainless Steel Fasteners
- Size Chart for Super Duplex Steel Bolt and Nuts
- Dimensions chart of Stainless Super Duplex Heavy Hex Nuts
- Weight Chart Of 15 mm SDSS Bolt
- Surface Finish for Super Duplex Stainless Steel Screws
- SDSS Heavy Hex Bolts Torque Chart
- Corrosion Tests of Super Duplex Stud Bolts
- Physical Properties of Super Duplex Fasteners
- Are Super Duplex screws suitable for use in corrosive environments?
- Applications of Super Duplex Alloy Socket Head Cap Screw
- Super Duplex Stainless Steel Rivets Mechanical Properties
- Equivalent Grades of Super Duplex Stainless Steel Hex Nuts
- Chemical Composition of SDSS Stainless Steel Flange Bolt
- Call Now for the Clients List Based in Below Cities
- Material Benefits of Super Duplex Bolts and Nuts
- Limitations of SDSS Hex Bolt
- Supply of SDSS Stainless Steel in Countries Like

Browsing for the Best and Reliable Super Duplex Fasteners Manufacturers in India?
Look No Further Than Km Steel India.
Click Here to Contact
Super Duplex Fasteners Specifications
![]()
- Bolt / Screw Size: M3 – M56
- Nuts Size: M3 – M56
- Washers Size : M3 – M36
- Machine Screws Size : M1.6 – M12
![]()
- UNF, BSW
- METRIC
- UNC BSF
![]()
- Rockwell / brinell hardness test
- Tensile test
- Charpy V-notch test
- Microstructure analysis
- Impact testing
![]()
- Phosphating
- Oxidation
- Zinc impregnation
- DACROMET, HDG
- Electric galvanized
![]()
- Saw cut
- Rounded
- Chamfer, Flat
- Sheared
![]()
- Resists Corrosion Cracking
- High Tensile Strength
- High Resistance to Pitting
- Corrosion Resistant
- Easy installation
![]()
- Threading
- Cold Drawn

- Fine Threads
- Coarse Threads
![]()
- ASTM A276
- ASTM A479
![]()
- Cold Forging
- CNC machined
- Hot Forging
![]()
- Small Pack
- Corrugated Box
- Carton
- Pallet
![]()
- Heat number
- Specification
- Material grade
- Custom logo
![]()
- Marine Engineering
- Power Plants
- Chemical Plants
- Shipbuilding
![]()
- Algeria, South africa
- USA, Dubai
- Oman, Saudi Arabia
- UAE, Abu Dhabi
Types of Super Duplex Fasteners
Super Duplex Fasteners Supplier in India Offers a Variety of The Most Popular Types.
Super Duplex Steel Bolt in Stock

SDSS Hex Head Bolt

Super Duplex Stainless Steel Flange Bolts

SDSS Stainless Steel Square Head Bolts

Super Duplex Steel Eye Bolts

SDSS Stainless Steel J-Bolts

Super Duplex Steel Flange Bolts

Super Duplex Stainless Hanger Bolts

Super Duplex Steel U-Bolts

Super Duplex Alloy Shoulder Bolts
Super Duplex Stainless Steel Nuts in Stock

Super Duplex Alloy Heavy Hex Nuts

Super Duplex Stainless Steel Hex Jam Nuts

SDSS Stainless Steel Keps-K Lock Nuts

Super Duplex Steel Castle Nuts

SDSS Stainless Steel Cap Nuts

Super Duplex Stainless Steel Nuts
Super Duplex Steel Screw in Stock

SDSS Stainless Steel Hex Cap Screws

SDSS Stainless Steel Socket Head Cap Screws

Super Duplex Stainless Button Head Screws

Super Duplex Stainless Steel Self Drilling Screws

Super Duplex Alloy Machine Screws

SDSS Stainless Steel Wood Screw
Super Duplex Stainless Steel Metal Stud Bolts in Stock

SDSS Full Threaded Stud

Super Duplex Stainless Steel Tap End Stud

SDSS Stainless Steel Double End Stud

Super Duplex Steel Threaded Rod

Super Duplex Alloy Bolting Stud Bolts

Super Duplex Steel Weld Studs
SDSS Washers in Stock

Super Duplex Stainless Fender Washers

SDSS Square Washers

Super Duplex Stainless Steel Flat Washers

Super Duplex Alloy Hastelloy Spring Washers
Common Trade Name of Super Duplex Stainless Steel Fasteners
| Grade | Common Name |
|---|---|
| S32750, S32760 |
|
Supplier of Super Duplex Stainless Steel Fasteners in Mumbai With Both Metric and Imperial Sizes
Size Chart for Super Duplex Steel Bolt and Nuts
Complete Range of SDSS Bolts Sizes from Trusted Super Duplex Fasteners Manufacturer in India
| SIZE | M4 to M20 | M6 to M24 | M3 to M10 | M1.6 to M64 | M3 to M20 | M3 to M12 | M3 to M20 | M3 to M12 | M3 to M20 | M6 to M12 | M3 to M20 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| GRADE | 10.9 | 12.9 | 12.9 | 12.9 | 12.9 | 12.9 | 45H | 45H | 45H | 45H | 45H |
| ASME | B18.3.3M | B18.3.1 M | B18.3.5M | B18.3.4M | B18.3.6M | B18.3.6M | B18.3.6M | B18.3.6M | B18.3.6M | ||
| ISO | 4762 | 10642 | 7380 | 4028 | 4027 | 4029 | 4026 | 4029 | |||
| ASTM | F835M | A574M | F835M | F835M | F912M | F912M | F912M | F912M | F912M |
Dimensions chart of Stainless Super Duplex Heavy Hex Nuts
| Nominal Size | F | G | H | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Width Over Flats | Width Over Corners | Thickness | |||||||
| Basic | Min | Max | Min | Max | Basic | Min | Max | ||
| 1 | 1.0000 | 1-5/8 | 1.575 | 1.325 | 1.796 | 1.876 | 63/64 | .956 | 1.012 |
| 1-1/8 | 1.1250 | 1-13/16 | 1.756 | 1.812 | 2.002 | 2.093 | 1-7/64 | 1.079 | 1.139 |
| 1-1/4 | 1.2500 | 2 | 1.938 | 2.000 | 2.209 | 2.309 | 1-7/32 | 1.187 | 1.251 |
| 1-3/8 | 1.3750 | 2-3/16 | 2.119 | 2.188 | 2.416 | 2.526 | 1-11/32 | 1.460 | 1.378 |
| 1-1/2 | 1.5000 | 2-3/8 | 2.300 | 2.375 | 2.622 | 2.742 | 1-15/32 | 1.433 | 1.505 |
| 1-5/8 | 1.6250 | 2-9/16 | 2.481 | 2.562 | 2.828 | 2.959 | 1-19/32 | 1.556 | 1.632 |
| 1-3/4 | 1.7500 | 2-3/4 | 2.662 | 2.750 | 3.035 | 3.175 | 1-23/32 | 1.679 | 1.759 |
| 1/4 | .2500 | 1/2 | .488 | .500 | .556 | .577 | 15/64 | .218 | .250 |
| 3/8 | .3750 | 11/16 | .669 | .688 | .763 | .794 | 23/64 | .341 | .377 |
| 1/2 | .5000 | 7/8 | .850 | .875 | .969 | 1.010 | 31/64 | .464 | .504 |
| 9/16 | .5625 | 15/16 | .909 | .938 | 1.037 | 1.083 | 35/64 | .526 | .568 |
| 5/8 | .6250 | 1-1/16 | 1.031 | 1.062 | 1.175 | 1.227 | 39/64 | .587 | .631 |
| 3/4 | .7500 | 1-1/4 | 1.212 | 1.250 | 1.382 | 1.443 | 47/64 | .710 | .758 |
| 7/8 | .8750 | 1-7/16 | 1.394 | 1.438 | 1.589 | 1.660 | 55/64 | .833 | .885 |
| 2 | 2.0000 | 3-1/8 | 3.025 | 3.125 | 3.449 | 3.608 | 1-31/32 | 1.925 | 2.013 |
| 2-1/4 | 2.2500 | 3-1/2 | 3.388 | 3.500 | 3.862 | 4.041 | 2-13/64 | 2.155 | 2.251 |
| 2-1/2 | 2.5000 | 3-7/8 | 3.750 | 3.875 | 4.275 | 4.474 | 2-29/64 | 2.401 | 2.505 |
| 2-3/4 | 2.7500 | 4-1/4 | 4.112 | 4.250 | 4.688 | 4.907 | 2-45/64 | 2.647 | 2.759 |
| 3 | 3.0000 | 4-5/8 | 4.475 | 4.625 | 5.102 | 5.340 | 2-61/64 | 2.893 | 3.013 |
| 3-1/4 | 3.2500 | 5 | 4.838 | 5.000 | 5.515 | 5.774 | 3-3/16 | 3.124 | 3.252 |
| 3-1/2 | 3.5000 | 5-3/8 | 5.200 | 5.375 | 5.928 | 6.207 | 3-7/16 | 3.370 | 3.506 |
| 3-3/4 | 3.7500 | 5-3/4 | 5.562 | 5.750 | 6.341 | 6.640 | 3-11/16 | 3.616 | 3.670 |
| 4 | 4.0000 | 6-1/8 | 5.925 | 6.125 | 6.755 | 7.073 | 3-15/16 | 3.862 | 4.014 |
Weight Chart Of 15 mm SDSS Bolt
| NOMINAL SIZE (D) | m10 | m12 | m14 | m16 | m20 | m24 | m30 | m36 | m42 | m48 | m56 | m64 | m72 | m80 | m90 | m100 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| BODY DIAMETER | D (MAX) | 10 | 12 | 14 | 16 | 20 | 24 | 30 | 36 | 42 | 48 | 56 | 64 | 72 | 80 | 90 | 90 |
| D (MIN) | 9.78 | 11.73 | 13.73 | 15.73 | 19.67 | 23.67 | 29.67 | 35.61 | 41.38 | 47.38 | 55.26 | 63.26 | 71.26 | 79.26 | 89.13 | 99.13 | |
| HEAD THICKNEASTM A193 | H (MAX) | 6.63 | 7.76 | 9.09 | 10.32 | 12.88 | 15.44 | 19.48 | 23.38 | 26.97 | 31.07 | 36.2 | 41.32 | 46.45 | 51.58 | 57.74 | 63.9 |
| H (MIN) | 6.17 | 4.24 | 8.51 | 9.68 | 12.12 | 14.56 | 17.92 | 21.63 | 25.03 | 28.93 | 33.8 | 38.68 | 43.55 | 48.42 | 54.26 | 60.1 | |
| ACROASTM A193 THE FLATS | F (MAX) | 17 | 19 | 22 | 24 | 30 | 36 | 46 | 55 | 65 | 75 | 85 | 95 | 105 | 115 | 130 | 145 |
| F (MIN) | 15.73 | 17.73 | 20.67 | 23.67 | 29.16 | 35 | 45 | 53.8 | 62.9 | 72.6 | 82.2 | 91.8 | 101.4 | 111 | 125.5 | 140 | |
| ACROASTM A193 CORNERS | C (MAX) | 18.48 | 20.78 | 24.25 | 27.71 | 34.64 | 41.57 | 53.12 | 63.51 | 75.06 | 86.6 | 98.15 | 109.7 | 121.24 | 132.72 | 150.11 | 167.43 |
| C (MIN) | 17.77 | 20.03 | 23.35 | 26.75 | 32.95 | 39.55 | 50.85 | 60.79 | 71.71 | 82.76 | 93.71 | 104.65 | 115.6 | 126.54 | 143.07 | 159.6 | |
SS Super Duplex Bolt & Nuts With Oxidation and Phosphating Surface Finish
Surface Finish for Super Duplex Stainless Steel Screws
High-Quality Surface Finish of SDSS Bolts by Trusted Super Duplex Fasteners Manufacturer in India

Industry-leading Super Duplex Washers & Threaded Rod Used in High Stress Applications, Refer Torque Chart
SDSS Heavy Hex Bolts Torque Chart
Super Duplex Fasteners Supplier in India provides premium-grade fasteners with a Accurate Torque Values
| Diameter (inch) | 5/16″ | 3/8″ | 1/4″ | 1/2″ | 9/16″ | 7/16″ | 5/8″ | 3/4″ | 1-1/4″ | 7/8″ | 1″ | 1-1/2″ | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Torque ft-lb (Dry) | 13.2 | 14.7 | 23.5 | 26.6 | 6.5 | 7.4 | 57.4 | 64.7 | 82.7 | 92.3 | 37.6 | 42 | 114.2 | 129.3 | 203 | 226 | 853 | 944 | 326 | 361 | 490 | 549 | 1484 | 1669 |
| Torque ft-lb (Lubricated) | 10 | 11 | 17.7 | 19.9 | 4.8 | 5.5 | 43 | 48.5 | 62.1 | 69.2 | 28.2 | 31.5 | 85.7 | 97 | 152 | 170 | 639 | 708 | 245 | 270 | 368 | 412 | 639 | 1252 |
| Threads (inch) | 18 | 24 | 16 | 24 | 20 | 28 | 13 | 20 | 12 | 18 | 16 | 24 | 11 | 18 | 10 | 16 | 7 | 12 | 9 | 14 | 8 | 14 | 6 | 12 |
Corrosion Tests of Super Duplex Stud Bolts
- Pitting Corrosion Test
- Stress Corrosion Cracking (SCC) Test
- Intergranular Corrosion Test
Physical Properties of Super Duplex Fasteners
| PRODUCT PROPERTY | Density | Melting Point Liquid US | Melting Point Solid US | Electrical Conductivity | Electrical Resistivity | Specific Gravity | Modulas of Rigidity | Modulas of Elasticity in Tension |
|---|---|---|---|---|---|---|---|---|
| ENGLISH | 0.304 lb/in3 @ 68 F | 1650 F | 1630 F | 26 %IACS @ 68 F | 39.9 ohms-cmil/ft @ 68 F | 8.41 | 5600 ksi | 15000 ksi |
| METRIC | 8.41 gm/cm3 @ 20 C | 899 C | 888 C | 0.152 MegaSiemens/cm @ 20 C | 6.63 microhm-cm @ 20 C | 8.41 | 38610 MPa | 103400 MPa |
Are Super Duplex screws suitable for use in corrosive environments?
Yes, Super Duplex screws are highly suitable for use in corrosive environments.
Applications of Super Duplex Alloy Socket Head Cap Screw

Find Super Duplex Steel Anchor Bolts Material Has Very High Mechanical Strength, Check Properties
Super Duplex Stainless Steel Rivets Mechanical Properties
SDSS Hex Bolt Manufacturer in India Offers Fasteners With Excellent Mechanical Properties
| Tensile Strength | 800 MPa |
|---|---|
| Yield Strength | 550 MPa |
| Elongation at break | 15% |
| Hardness, Brinell | 310 max |
Equivalent Grades of Super Duplex Stainless Steel Hex Nuts
| Grade | Super Duplex S32750 | Super Duplex S32760 | |
|---|---|---|---|
| UNS | North America | S32750 | S32760 |
| WERKSTOFF NR. | Russia | 1.441 | 1.441 |
Chemical Composition of SDSS Stainless Steel Flange Bolt
| Grade | Si | S | Ni | Cr | P | C | Mn | Mo | N | Fe |
|---|---|---|---|---|---|---|---|---|---|---|
| Super Duplex S32760 | 1.00 max | 0.010 max | 6.00 – 8.00 | 24.00 – 26.00 | 0.030 max | 0.05 max | 1.00 max | 3.00 – 4.00 | 0.20 – 0.30 | 57.61 min |
| Super Duplex S32750 | 0.80 max | 0.020 max | 6.00 – 8.00 | 24.00 – 26.00 | 0.035 max | 0.030 max | 1.20 max | 3.00 – 5.00 | 0.24 – 0.32 | 58.095 min |
Call Now for the Clients List Based in Below Cities
Suplier of Super Duplex Fasteners, Supply SDSS Bolt & Nuts in Various Countries
| Dammam (Saudi Arabia) | Abu Dhabi (UAE) |
|---|---|
| Riyadh (Saudi Arabia) | Houston (USA) |
| Texas (USA) | California (USA) |
| Al Jubail (Saudi Arabia) | Dubai (UAE) |
| Al Khobar (Saudi Arabia) | Indiana (USA) |
Material Benefits of Super Duplex Bolts and Nuts

Super Duplex Bolt Material Benefits Offered by Expert Super Duplex Fasteners Manufacturers
Limitations of SDSS Hex Bolt
- Hard to Machine
- Limited Supply
- Temperature Sensitive
- Costly
- Welding Issues
- Brittle
Supply of SDSS Stainless Steel in Countries Like
| Country Name | Delivery Time |
|---|---|
| Jordan | 21 days |
| Egypt | 18 days |
| South Africa | 25-30 days |
| Indonesia | 9 days |
| Singapore | 8 days |
| Saudi Arabia | 7 days |
| Brazil | 45-60 days |
| Australia | 60 days |
| UAE/ Dubai | 5 days |
| Thailand | 7 days |
Why Choose KM Steel India ?
- ISO & PED Approved Manufacturer & Supplier for Fastening Products
- Importer and Exporter of Hex Bolts, Threaded Rod, Studs, Socket Head cap screws in Maharashtra.
- Top 5 Trader & Wholesaler of Set screws, Machine screws, Washers, Heavy Hex head bolt, Double Ended Studs in India, For Low and High Temperature Applications.
- Offer Inexpensive Rates to the local Distributor & Reseller Mexico, China, Brazil, Peru, Nigeria, Jordan, Dubai, Thailand (Bangkok), Venezuela, Iran, UK, Canada, and Russia.
- Stockist of Rivets, Hex Nuts, Lock Nuts, Bolts and Nuts Used in Various Industries and Applications For Fastening and Securing Purposes in Maharashtra.
