Product Specifications
| Model / Specification | M1.6-M64 |
| Material | Carbon steel |
| Thread D |
M1.6 | M2 | M2.5 | M3 | (M3.5) | M4 | M5 | M6 | M8 | M10 | M12 | (M14) | M16 | (M18) | M20 | |
| P | Pitch | 0.35 | 0.4 | 0.45 | 0.5 | 0.6 | 0.7 | 0.8 | 1 | 1.25 | 1.5 | 1.75 | 2 | 2 | 2.5 | 2.5 |
| c | Max | 0.2 | 0.2 | 0.3 | 0.4 | 0.4 | 0.4 | 0.5 | 0.5 | 0.6 | 0.6 | 0.6 | 0.6 | 0.8 | 0.8 | 0.8 |
| Min | 0.1 | 0.1 | 0.1 | 0.15 | 0.15 | 0.15 | 0.15 | 0.15 | 0.15 | 0.15 | 0.15 | 0.15 | 0.2 | 0.2 | 0.2 | |
| da | Max | 1.84 | 2.30 | 2.90 | 3.45 | 4.00 | 4.60 | 5.75 | 6.75 | 8.75 | 10.80 | 13.00 | 15.10 | 17.30 | 19.50 | 21.60 |
| Min | 1.60 | 2.00 | 2.50 | 3.00 | 3.50 | 4.00 | 5.00 | 6.00 | 8.00 | 10.00 | 12.00 | 14.00 | 16.00 | 18.00 | 20.00 | |
| dw | Min | 2.4 | 3.1 | 4.1 | 4.6 | 5.00 | 5.9 | 6.9 | 8.9 | 11.6 | 14.6 | 16.6 | 19.60 | 22.5 | 24.90 | 27.7 |
| e | Min | 3.41 | 4.32 | 5.45 | 6.01 | 6.58 | 7.66 | 8.79 | 11.05 | 14.38 | 17.77 | 20.03 | 23.36 | 26.75 | 29.56 | 32.95 |
| m | Max | 1.3 | 1.6 | 2 | 2.4 | 2.8 | 3.2 | 4.7 | 5.2 | 6.8 | 8.4 | 10.8 | 12.8 | 14.8 | 15.8 | 18 |
| Min | 1.05 | 1.35 | 1.75 | 2.15 | 2.55 | 2.9 | 4.4 | 4.9 | 6.44 | 8.04 | 10.37 | 12.1 | 14.1 | 15.1 | 16.9 | |
| mw | Min | 0.8 | 1.1 | 1.4 | 1.7 | 2.0 | 2.3 | 3.5 | 3.9 | 5.2 | 6.4 | 8.3 | 9.70 | 11.3 | 12.10 | 13.5 |
| s | Max = Nom | 3.2 | 4 | 5 | 5.5 | 6 | 7 | 8 | 10 | 13 | 16 | 18 | 21 | 24 | 27 | 30 |
| Min | 3.02 | 3.82 | 4.82 | 5.32 | 5.82 | 6.78 | 7.78 | 9.78 | 12.73 | 15.73 | 17.73 | 20.67 | 23.67 | 26.16 | 29.16 | |
| Weight/1000 | 0.05 | 0.103 | 0.212 | 0.301 | 0.411 | 0.643 | 1.19 | 2.19 | 4.74 | 8.91 | 13.67 | 21.63 | 32.66 | 42.31 | 58.37 | |
| Thread D |
(M22) | M24 | (M27) | M30 | (M33) | M36 | (M39) | M42 | (M45) | M48 | (M52) | M56 | (M60) | M64 | |
| P | Pitch | 2.5 | 3 | 3 | 3.5 | 3.5 | 4 | 4 | 4.5 | 4.5 | 5 | 5 | 5.5 | 5.5 | 6 |
| c | Max | 0.8 | 0.8 | 0.80 | 0.8 | 0.8 | 0.8 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 |
| Min | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 | |
| da | Max | 23.70 | 25.90 | 29.1 | 32.40 | 35.6 | 38.90 | 42.1 | 45.40 | 48.6 | 51.80 | 56.2 | 60.50 | 64.80 | 69.10 |
| Min | 22.00 | 24.00 | 27.0 | 30.00 | 33.0 | 36.00 | 39.00 | 42.00 | 45.0 | 48.00 | 52.0 | 56.00 | 60.00 | 64.00 | |
| dw | Min | 31.4 | 33.3 | 38.0 | 42.8 | 46.6 | 51.1 | 55.90 | 60.0 | 64.7 | 69.5 | 74.2 | 78.7 | 83.40 | 88.2 |
| e | Min | 37.29 | 39.55 | 45.2 | 50.85 | 55.37 | 60.79 | 66.44 | 71.3 | 76.95 | 82.6 | 88.25 | 93.56 | 99.21 | 104.86 |
| m | Max | 19.4 | 21.5 | 23.8 | 25.6 | 28.7 | 31 | 33.4 | 34 | 36 | 38 | 42 | 45 | 48 | 51 |
| Min | 18.1 | 20.2 | 22.5 | 24.3 | 27.4 | 29.4 | 31.8 | 32.4 | 34.4 | 36.4 | 40.4 | 43.4 | 46.4 | 49.1 | |
| mw | Min | 14.50 | 16.2 | 18.0 | 19.4 | 21.9 | 23.5 | 25.4 | 25.9 | 27.5 | 29.1 | 32.3 | 34.7 | 37.10 | 39.3 |
| s | Max = Nom | 34 | 36 | 41 | 46 | 50 | 55 | 60 | 65 | 70 | 75 | 80 | 85 | 90 | 95 |
| Min | 33 | 35 | 40 | 45 | 49 | 53.8 | 58.8 | 63.1 | 68.1 | 73.1 | 78.1 | 82.8 | 87.8 | 92.8 | |
| Weight/1000 | 82 | 100.5 | 147.3 | 205.2 | 268.8 | 351.7 | 455.9 | 534.8 | 663.1 | 816.8 | 1012 | 1202 | 1418 | 1659 | |
Product Introduction — Hexagon Nut Type 1
Hexagon Nut Type 1 GB/T 6170-2015 is a standard hexagon nut conforming to the Chinese national standard “Hexagon Nuts, Style 1”, corresponding to international standard ISO 4032, and commonly referred to as DIN 934 under older standards. The nut has a hexagonal shape with internal threads in metric coarse or fine pitch, and property classes include 6, 8, 10, and 12. Common materials are carbon steel or alloy steel (such as Q235, 45 steel, 35CrMo, etc.), with different strength levels achievable through heat treatment. Its dimensional specifications are uniform with excellent interchangeability, making it one of the most commonly used standard fasteners.
One Product Features
Standard hexagonal shape: The hexagon width across flats conforms to GB/T 6170 specifications, allowing use with standard wrenches or sockets for assembly and disassembly.
Complete property classes: Covers classes 6, 8, 10, and 12, meeting different load requirements from general to high strength applications.
Wide range of thread specifications: Suitable for metric coarse and fine threads, with common specifications ranging from M1.6 to M64.
Diverse material options: Carbon steel, alloy steel, etc., with mechanical properties enhanced through heat treatment.
Optional surface treatments: Blackening, zinc plating, nickel plating, Dacromet, etc., to improve corrosion resistance.
High degree of standardization: Dimensions, tolerances, and mechanical properties are strictly controlled by standards, ensuring consistency.
Two Product Advantages
Strong versatility: Conforms to GB/T 6170 standard, works well with bolts, screws, and washers of the same standard, easy to replace.
High assembly efficiency: Hexagonal shape facilitates tool operation, suitable for both manual and automated assembly.
Reliable load capacity: Different property classes can withstand different levels of preload and load, providing stable connections.
Low procurement cost: Large-scale production, abundant market supply, economical pricing, easy to purchase.
Excellent interchangeability: Unified standards allow products from different manufacturers to be used interchangeably, reducing management costs.
Wide range of applications: Corresponding property classes available for applications from general machinery to critical structures.
Three Applications
Mechanical equipment: Various mechanical component connections, frame assembly, transmission device fixation.
Construction steel structures: Steel structure joint connections, embedded part fixation, bracket installation.
Automotive and components: Chassis, body, engine peripherals and other general threaded connection points.
Electronics and electrical equipment: Chassis, cabinets, equipment enclosures and other medium-strength fastening applications.
Pipes and valves: Flange connections, bracket fixation, etc.
Other general applications: Any situation requiring standard metric hexagon nuts for fastening connections can use this product.
