Size In Ready Stock
- M2 To M52
As a trusted nut manufacturer in India, We provide a wide variety of steel nuts in different materials and sizes as per ASME b18 2.2. Our custom nut product design engineers are highly skilled in CAD (Computer Aided Design).
Why Choose Us as Top Nut Manufacturer in India?
Our Technology and Processes
Table of Content
Since 2015, Dalloyed Fasteners, based in Mumbai, nut manufacturer in India. Custom nut available in size range M3 to M42, with a very high quality product range as per ANSI b18 2.2. Our automotive nut are made with the top-quality raw material.
Types of Nuts and Their Uses
Wing Nuts
Machinery and Equipment
Slotted Nuts
Aerospace and Railway
Nut Specification
Size In Ready Stock
Custom Nut Threads
Industrial Nut Manufacturing Process
Characteristics Of Automotive Nut
Marine Nut Testing
Application Of Construction Nut
Types Of Packaging
Origin of Raw Material
Custom Nut Grades and Standards
| Steel Nut Grades | Description |
|---|---|
| Grade 2 Nut | Low Stress Applications |
| Grade 5 Nut | Automotive and Machinery Applications |
| Grade 8 Nut | Heavy Duty Applications |
| Nut Standards | |
| ASTM | American Society for Testing and Materials |
| ISO | International Organization for Standardization |
Nut Manufacturing Process

Material Selection & Inspection

Cutting to Required Length

Hot Forging (Head Formation)

Trimming & Punching

Heat Treatment (if required as per ASTM)

Thread Rolling and Machining

Surface Finishing

Final Inspection

Packaging & Marking
Japanese Origin nut manufacturer in India, Maintain ready stock of marine nut for oil and gas plant. Our industrial nut product design engineers are highly skilled in CAD (Computer Aided Design).
Common Materials Used for Steel Nut
| Material | Weight | Strength | Corrosion resistance | Cost |
|---|---|---|---|---|
| Steel Nut | Heavy | Very strong | Not very corrosion resistant | Inexpensive |
| Brass Nut | Heavy | Softer Than Steel | More corrosion resistant than steel | Expensive |
| Nylon Nut | Lightweight | Strong Plastic | Resistant to corrosion and chemicals | Inexpensive |
| Stainless Steel Nut | Heavy | Strong | Excellent corrosion resistance | Expensive |
Nut Torque Chart
| Thread Size | Torque for Standard Threads in [N m] | ||
|---|---|---|---|
| Nut Grade | Garde 8.8 | Garde 10.9 | Garde 12.9 |
| M2 | 0,35 | 0,49 | 0,59 |
| M4 | 2,97 | 4,18 | 5,02 |
| M6 | 10,25 | 14,41 | 17,29 |
| M8 | 24,93 | 35,06 | 42,07 |
| M10 | 49 | 70 | 83 |
| M12 | 86 | 121 | 146 |
| M14 | 138 | 194 | 233 |
| M16 | 215 | 302 | 363 |
| M18 | 296 | 417 | 500 |
| M20 | 420 | 590 | 709 |
| M22 | 574 | 807 | 968 |
| M24 | 726 | 1020 | 1224 |
| M30 | 1445 | 2032 | 2438 |
| M36 | 2528 | 3555 | 4266 |
| M42 | 4050 | 5696 | 6835 |
| M48 | 6086 | 8559 | 10271 |
| M52 | 7876 | 11076 | 13292 |
| M56 | 9793 | 13772 | 16526 |
| M60 | 12219 | 17183 | 20619 |
How to Calculate Proof Load of Nut?
| Metric Nuts : Coarse Threads | Proof Load - Fp (N) | |||
|---|---|---|---|---|
| Thread d | Pitch P | Garde 8 | Garde 10 | Garde 12 |
| M6 | 1.00 mm | 17200 | 20900 | 23100 |
| M8 | 1.25 mm | 31800 | 38100 | 42500 |
| M10 | 1.50 mm | 50500 | 60300 | 67300 |
| M12 | 1.75 mm | 74200 | 88500 | 100300 |
| M14 | 2.00 mm | 101200 | 120800 | 136900 |
| M16 | 2.00 mm | 138200 | 164900 | 186800 |
| M18 | 2.50 mm | 176600 | 203500 | 230400 |
| M20 | 2.50 mm | 225400 | 259700 | 294000 |
| M22 | 2.50 mm | 278800 | 321200 | 363600 |
| M24 | 3.00 mm | 324800 | 374200 | 423600 |
| M30 | 3.50 mm | 516100 | 594700 | 673200 |
| M36 | 4.00 mm | 751600 | 866000 | 980400 |
Comparison Of Automotive Nut Grades By Standard
| Grade | Material | Standard | Strength | Applications |
|---|---|---|---|---|
| Grade 8.8 | Alloy or Carbon Steel | ISO 898-1 | Comparable to Grade 5 | Automotive |
| Grade 10.9 | Alloy or Carbon Steel | ISO 898-1 | Comparable to Grade 8 | Industrial applications |
| Grade 12.9 | Alloy Steel | ISO 898-1 | Strongest metric | Critical applications |
| SAE Grade 2 | Carbon Steel | SAE J429 | 60,000-74,000 PSI | Household repairs applications |
| SAE Grade 5 | Alloy or Carbon Steel | SAE J429 | 105,000-120,000 PSI | Machinery |
| SAE Grade 8 | Alloy or Carbon Steel | SAE J429 | Up to 150,000 PSI | Aerospace |
| A2-70 | Stainless Steel | ASTM | 74,000 PSI | Corrosion resistant applications |
| A4-70 | Stainless Steel | ASTM | 180,000 PSI | Marine applications |
| Titanium Grade 5 | Titanium | ASTM | 138,000 PSI | Medical devices |
| Grade A Nuts | Carbon Steel | SAE | Exceeds Grade 2 | Light-duty applications |
| Grade B Nuts | Carbon Steel | SAE | Same to Grade 5 | Medium strength applications |
| Grade G Nuts | Carbon Steel | SAE | Same to Grade 8 | Structural applications |
| ASTM A307 Grade B | Carbon Steel | ASTM A307 | Up to 100,000 PSI | Piping, flanged joints |
Classification of Industrial Nut
Nut Weight Chart in KG
ISO 4032 (Approx Weight In KG Per 1000 Piece)
| Size | Weight |
|---|---|
| M10 | 11.69 |
| M12 | 17.26 |
| M14 | 26.00 |
| M16 | 33.58 |
| M18 | 46.00 |
| M20 | 64.59 |
| M22 | 75.00 |
| M24 | 110.40 |
| M27 | 158.00 |
| M30 | 222.00 |
| M33 | 279.00 |
| M36 | 387.00 |
| M39 | 496.00 |
| M42 | 603.00 |
How to Choose the Right Marine Nut Drivers for Your Manufacturing Needs?
Common Metal Nut Applications and Industries
Construction Nut Torque Requirements and Guidelines
High performance nut manufacturer in India, Keep construction nut stock in 1/2" To 4" sizes petrochemicals applications. We offer customization options to our customers according to their project requirements.
ASTM Standard for Nut
DIN Standard for Nut
Hardness Table for Thread Rolling Nuts by Class
| Class | Hardness |
|---|---|
| Class 4 Nut | 22 to 32 HRC |
| Class 8 Nut | 33 to 39 HRC |
| Class 10 Nut | 38 to 44 HRC |
Dalloyed Fasteners is a ISO certified nut manufacturer in India. With excellent manufacturing facilities and in house capability.
Nut Driver Size Chart
| Nut Size | Wrench Size / Nut Driver (Imperial) | |
|---|---|---|
| 1/4" | 0.4375 inch | 7/16" |
| 5/16" | 0.5 inch | 1/2" |
| 3/8" | 0.5625 inch | 9/16" |
| 7/16" | 0.6875 inch | 11/16" |
| 1/2" | 0.75 inch | 3/4" |
| 5/8" | 0.9375 inch | 15/16" |
| 3/4" | 0.125 inch | 1-1/8" |
| 7/8" | 0.3125 inch | 1-5/16" |
| 1" | 0.5 inch | 1-1/2" |
Nut Sizes Chart
| Size | Thread Pitch |
|---|---|
| M1.6 | 0.35 |
| M2 | 0.4 |
| M2.5 | 0.45 |
| M3 | 0.5 |
| M4 | 0.7 |
| M5 | 0.8 |
| M6 | 1 |
| M8 | 1.25 |
| M10 | 1.5 |
| M12 | 1.75 |
| M16 | 2 |
| M18 | 2.5 |
| M20 | 2.5 |
| M22 | 2.5 |
| M24 | 3 |
| M27 | 3 |
| M30 | 3.5 |
| M33 | 3.5 |
| M36 | 4 |
| M39 | 4 |
| M42 | 4.5 |
| M45 | 4.5 |
| M48 | 5 |
| M52 | 5 |
| M56 | 5.5 |
| M60 | 5.5 |
| M64 | 6 |
Nut Manufacturing Machine