Manufactures & Suppliers of Pipes, Tubes, Flanges, Pipe Fitting & Fasteners

Natron Steel is one of the leading Stainless Steel Nuts Manufacturers in India, offering a wide range of nuts in various sizes and grades to meet diverse industrial requirements. Our product line includes different types, such as stainless steel nutserts, also known as rivnuts, which serve as a combination of rivets and nuts, ideal for different application setups. The stainless steel round nuts are the most commonly used type, known for their cost-effectiveness and versatility. However, we also provide hex, rectangular, and square-headed nuts to cater to specific needs. Nuts are essential thread-holed fasteners, commonly used with bolts to fasten parts together. Stainless steel nutserts provide load-bearing threads in materials that are too thin to be tapped or in blind holes. Stainless steel metric rivet nuts are one-piece internally threaded fasteners, perfect for securing materials from one side.

316 Stainless Steel Nuts, 304 Stainless Steel Nuts, Stainless Steel Jam Nut, SS 304 Nylon Insert Nut, Stainless Steel Rivet Nuts, Stainless Steel Square Nuts, Stainless Steel T Nuts, Stainless Steel Metric Nuts Supplier in Mumbai, India.

Stainless steel nuts are designed for use with square tools, making them easy to drive with the right equipment. Depending on the required torque strength, the head type can vary across applications. We manufacture these nuts using different grades of stainless steel, such as 304, 310, and 316, ensuring high performance and durability. Stainless steel weld nuts, another key product, are equipped with threads and are welded onto surfaces for a secure and lasting connection.


The 316 stainless steel nuts are highly popular, second only to the 304 grade. The 316 grade offers enhanced mechanical properties and elevated temperature resistance, similar to 304 stainless steel, but with added protection against acid and chloride ion stress corrosion cracking. As a trusted supplier, we offer a wide range of nuts, from ¼ inch to 16 inches and beyond, for various applications. Feel free to contact us for more information on stainless steel metric flange nuts and other products, along with pricing details.


Stainless Steel Nuts Specification

Grades 304, 304L, 304H, 316, 316L, 316Ti, 316h, 321, 410, 410S, 347, 347H
Nylock Nut sizes #8, #10 (NM Pattern)
1/4 to 3/4 inch (NE Pattern)
Thread Metric/ Imperial
Coupling Nut size range

Imperial Inch

1/4 to 3/4 inch
Hardness Rockwell B68 - C32

Metric:

M6 to M20 (Gr.8)
M10 to M24 (Gr.10)

ASME Standard (American) ASME B18.2.2 / ASME B18.16.6 /ASME B18.16.4 / ASME B18.2.2
DIN Standard (German) DIN 982 / DIN 985 / DIN 929
ISO Standard ISO 4032 / UNI 5587
Industrial Nuts Finish Self color, Zinc Plated, galvanized
Test performed Hardness test, Torsion test
Types of Nuts

Stainless Steel Hex Nuts (most selling product)
Stainless Steel Self Clinching Nuts
Stainless Steel Nylock Nut
Stainless Steel Weld Nuts
Stainless Steel Rivet Nuts
Stainless Steel T Nut
Stainless Steel Cage Nut
Stainless Steel Sleeve Nuts
Stainless Steel Slotted Nut
Stainless Steel Coupling Nuts
Stainless Steel Flexloc Nut
Stainless Steel Acorn Nuts
Anti Theft Nuts and Bolts
Prevailing Torque Nut

ASTM Specification ASTM F594

We manufacture two main types of stainless steel nuts: one that forms a bulge on the back of a panel when a screw is tightened, and another that is drawn into a sleeve, anchoring securely without forming a bulge. 304 stainless steel nuts are designed with welding needs in mind, ensuring robust connections in applications requiring welded nuts.


Our stainless steel metric flange nuts feature a wide flange at one end, acting as an integrated washer by distributing the load created by threaded bolts. Metric jam nuts, also known as thin nuts, are often used as a secondary "jam" nut or alone in space-constrained setups. Metric stainless steel coupling nuts, also referred to as standoff nuts or round couplers, are designed to fasten two metric rods, bolts, or studs together, effectively spacing materials and components apart.

Stainless Steel Nuts Grades

Carbon Steel ASTM F3125 A325 Type 1, A490 Type 1, 2 and 2, A325 Type 2 and 3
Stainless Steel ASTM A193 B16, A193 B7, A2 - 70/80, A4 - 70/80, SS 304, 304L, 316, 316L, 410, 410S
SAE J429 5, 5.1, 5.2, 8, 8.2
Alloy Steel ASTM A354 BC, A354 BD, A354 BB

SS Nuts Available Standards

ASTM ASTM A194 Stainless Steel 316 Nuts ASTM A563 Stainless Steel 316 Nuts ASTM A594 Stainless Steel 316 Nuts
DIN DIN 439 Nuts DIN EN ISO 4035 Nuts DIN EN ISO 4036 Nuts
DIN EN ISO 8675 Nuts DIN 439-B Nuts DIN 934 Nuts
DIN EN ISO 4032 Nuts DIN EN ISO 8673 Nuts DIN 935 Nuts
DIN 935-1 Nuts DIN 935-2 Nuts DIN 935-3 Nuts
DIN 936 Nuts DIN 982 Nuts DIN EN ISO 7040 Nuts
DIN EN ISO 10512 Nuts DIN 985 Nuts DIN EN ISO 10511 Nuts
DIN 1587 Nuts DIN 6915 (ISO 4714) Nuts DIN 6923 (ISO 1661) Nuts

Stainless Steel Nut Weight Chart in lbs

Size Finished Nut Heavy Nut Finished Jam Nut Heavy Jam Nut Square Nut Heavy Square
1/2" 3.750 6.540 2.620 4.000 5.780 7.870
5/8" 7.330 11.900 4.930 6.960 10.800 14.300
3/4" 11.900 19.300 7.700 11.000 15.400 23.500
7/8" 19.000 29.700 12.000 16.700 24.500 36.200
1" 28.300 42.500 17.600 23.500 36.300 51.500
1-1/8" 40.300 59.200 24.700 32.400 52.500 72.400
1-1/4" 54.300 78.600 36.100 45.800 70.600 95.500
1-3/8" 73.000 102.000 47.900 59.300 94.500 125.000
1-1/2" 94.300 131.000 60.900 74.800 122.000 161.000
1-5/8"   162.000   91.600    
1-3/4" 151.000 204.000 100.000 114.000    
1-7/8"   241.000   134.000    
2" 224.000 299.000 140.000 165.000    
2-1/4"   419.000   227.000    
2-1/2"   564.000   332.000    
2-3/4"   738.000   429.000    
3"   950.000   545.000    
3-1/4"   1194.000   651.000    
3-1/2"   1526.000   851.000    
3-3/4"   1812.000   1005.000    
4"   2180.000   1200.000