Full Thread Quenched And Tempered Hexagon Head Bolt DIN933 ISO 4017 ANSI / ASME B 18.2.3.1M
DIN933 ISO 4017 ANSI/ASME B 18.2.3.1M Grade 8.8/10.9/12.9 Full-Thread Quenched And Tempered Hexagon Head Bolt
| Screw Thread | M1.6 | M2 | M2.5 | M3 | (M3.5) | M4 | M5 | M6 | (M7) | M8 | M10 | M12 | (M14) | M16 | |||
| d | |||||||||||||||||
| P | Pitch | 0.35 | 0.4 | 0.45 | 0.5 | 0.6 | 0.7 | 0.8 | 1 | 1 | 1.25 | 1.5 | 1.75 | 2 | 2 | ||
| a | max | 1.05 | 1.2 | 1.35 | 1.5 | 1.8 | 2.1 | 2.4 | 3 | 3 | 3.75 | 4.5 | 5.25 | 6 | 6 | ||
| c | 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 | 0.15 | 0.2 | ||
| max | 0.25 | 0.25 | 0.25 | 0.4 | 0.4 | 0.4 | 0.5 | 0.5 | 0.5 | 0.6 | 0.6 | 0.6 | 0.6 | 0.8 | |||
| da | max | 2 | 2.6 | 3.1 | 3.6 | 4.1 | 4.7 | 5.7 | 6.8 | 7.8 | 9.2 | 11.2 | 13.7 | 15.7 | 17.7 | ||
| dw | Grade A | min | 2.4 | 3.2 | 4.1 | 4.6 | 5.1 | 5.9 | 6.9 | 8.9 | 9.6 | 11.6 | 15.6 | 17.4 | 20.5 | 22.5 | |
| Grade B | min | - | - | - | - | - | 5.7 | 6.7 | 8.7 | 9.4 | 11.4 | 15.4 | 17.2 | 20.1 | 22 | ||
| e | Grade A | min | 3.41 | 4.32 | 5.45 | 6.01 | 6.58 | 7.66 | 8.79 | 11.05 | 12.12 | 14.38 | 18.9 | 21.1 | 24.49 | 26.75 | |
| Grade B | min | - | - | - | - | - | 7.5 | 8.63 | 10.89 | 11.94 | 14.2 | 18.72 | 20.88 | 23.91 | 26.17 | ||
| k | Nominal Size | 1.1 | 1.4 | 1.7 | 2 | 2.4 | 2.8 | 3.5 | 4 | 4.8 | 5.3 | 6.4 | 7.5 | 8.8 | 10 | ||
| Grade A | min | 0.98 | 1.28 | 1.58 | 1.88 | 2.28 | 2.68 | 3.35 | 3.85 | 4.65 | 5.15 | 6.22 | 7.32 | 8.62 | 9.82 | ||
| max | 1.22 | 1.52 | 1.82 | 2.12 | 2.52 | 2.92 | 3.65 | 4.15 | 4.95 | 5.45 | 6.56 | 7.68 | 8.98 | 10.18 | |||
| Grade B | min | - | - | - | - | - | 2.6 | 3.26 | 3.76 | 4.56 | 5.06 | 6.11 | 7.21 | 8.51 | 9.71 | ||
| max | - | - | - | - | - | 3 | 3.74 | 4.24 | 5.04 | 5.54 | 6.69 | 7.79 | 9.09 | 10.29 | |||
| k1 | min | 0.7 | 0.9 | 1.1 | 1.3 | 1.6 | 1.9 | 2.28 | 2.63 | 3.19 | 3.54 | 4.28 | 5.05 | 5.96 | 6.8 | ||
| r | min | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.2 | 0.2 | 0.25 | 0.25 | 0.4 | 0.4 | 0.6 | 0.6 | 0.6 | ||
| s | max=nominal size | 3.2 | 4 | 5 | 5.5 | 6 | 7 | 8 | 10 | 11 | 13 | 17 | 19 | 22 | 24 | ||
| Grade A | min | 3.02 | 3.82 | 4.82 | 5.32 | 5.82 | 6.78 | 7.78 | 9.78 | 10.73 | 12.73 | 16.73 | 18.67 | 21.67 | 23.67 | ||
| Grade B | min | - | - | - | - | - | 6.64 | 7.64 | 9.64 | 10.57 | 12.57 | 16.57 | 18.48 | 21.16 | 23.16 | ||
| Weight of per 1000 steel products(≈kg) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | |||
| Screw Thread | (M18) | M20 | (M22) | M24 | (M27) | M30 | (M33) | M36 | (M39) | M42 | (M45) | M48 | (M52) | ||||
| d | |||||||||||||||||
| P | Pitch | 2.5 | 2.5 | 2.5 | 3 | 3 | 3.5 | 3.5 | 4 | 4 | 4.5 | 4.5 | 5 | 5 | |||
| a | max | 7.5 | 7.5 | 7.5 | 9 | 9 | 10.5 | 10.5 | 12 | 12 | 13.5 | 13.5 | 15 | 15 | |||
| c | min | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 | |||
| max | 0.8 | 0.8 | 0.8 | 0.8 | 0.8 | 0.8 | 0.8 | 0.8 | 1 | 1 | 1 | 1 | 1 | ||||
| da | max | 20.2 | 22.4 | 24.4 | 26.4 | 30.4 | 33.4 | 36.4 | 39.4 | 42.4 | 45.6 | 48.6 | 52.6 | 56.6 | |||
| dw | Grade A | min | 25.3 | 28.2 | 30 | 33.6 | - | - | - | - | - | - | - | - | - | ||
| Grade B | min | 24.8 | 27.7 | 29.5 | 33.2 | 38 | 42.7 | 46.5 | 51.1 | 55.9 | 59.9 | 64.7 | 69.4 | 74.2 | |||
| e | Grade A | min | 30.14 | 33.53 | 35.72 | 39.98 | - | - | - | - | - | - | - | - | - | ||
| Grade B | min | 29.56 | 32.95 | 35.03 | 39.55 | 45.2 | 50.85 | 55.37 | 60.79 | 66.44 | 71.3 | 76.95 | 82.6 | 88.25 | |||
| k | Nominal Size | 11.5 | 12.5 | 14 | 15 | 17 | 18.7 | 21 | 22.5 | 25 | 26 | 28 | 30 | 33 | |||
| Grade A | min | 11.28 | 12.28 | 13.78 | 14.78 | - | - | - | - | - | - | - | - | - | |||
| max | 11.72 | 12.72 | 14.22 | 15.22 | - | - | - | - | - | - | - | - | - | ||||
| Grade B | min | 11.15 | 12.15 | 13.65 | 14.65 | 16.65 | 18.28 | 20.58 | 22.08 | 24.58 | 25.58 | 27.58 | 29.58 | 32.5 | |||
| max | 11.85 | 12.85 | 14.35 | 15.35 | 17.35 | 19.12 | 21.42 | 22.92 | 25.42 | 26.42 | 28.42 | 30.42 | 33.5 | ||||
| k1 | min | 7.8 | 8.5 | 9.6 | 10.3 | 11.7 | 12.8 | 14.4 | 15.5 | 17.2 | 17.9 | 19.3 | 20.9 | 22.8 | |||
| r | min | 0.6 | 0.8 | 0.8 | 0.8 | 1 | 1 | 1 | 1 | 1 | 1.2 | 1.2 | 1.6 | 1.6 | |||
| s | max=nominal size | 27 | 30 | 32 | 36 | 41 | 46 | 50 | 55 | 60 | 65 | 70 | 75 | 80 | |||
| Grade A | min | 26.67 | 29.67 | 31.61 | 35.38 | - | - | - | - | - | - | - | - | - | |||
| Grade B | min | 26.15 | 29.16 | 31 | 35 | 40 | 45 | 49 | 53.8 | 58.8 | 63.1 | 68.1 | 73.1 | 78.1 | |||
| Weight of per 1000 steel products(≈kg) | - | - | - | - | - | - | - | - | - | - | - | - | - | ||||
Characteristics
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The full-thread design ensures that the entire length of the bolt shaft is threaded, maximizing the contact area between the bolt and nut. This results in increased load-bearing capacity and stability of the connection. Furthermore, it facilitates more effective load transfer and distribution along the bolt, making it ideal for high-strength connections where reliability and durability are paramount.
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Indeed, the combination of quenching and tempering treatments results in a bolt that is both hard and strong, yet retains a certain level of toughness. The quenching process hardens the metal, enhancing the bolt's hardness and strength, while the tempering process relieves internal stresses incurred during quenching, minimizing the risk of fracture under high stress conditions. This treatment regimen makes the bolt highly suitable for applications requiring both high strength and excellent fatigue resistance.
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The hexagonal head design offers excellent grip and greater torque transmission efficiency, facilitating easy installation and removal using wrenches, screwdrivers, and other hexagonal tools. Additionally, it ensures the security and sturdiness of the connection.
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High-Precision Manufacturing: Manufactured according to international standards such as DIN 933, ensuring the bolt's dimensional accuracy and interchangeability.
Advantages
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High Load-Bearing Capacity: The full-thread design and quenched and tempered treatment give the bolt higher strength and hardness, enabling it to withstand greater tensile and shear forces.
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Excellent Stability: Due to the large contact area between the bolt and nut, the connection is more stable and reliable, less prone to loosening.
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Long Service Life: The quenched and tempered treatment improves the bolt's wear resistance and fatigue resistance, resulting in a longer service life.
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Ease of Installation: The hexagon head design makes the bolt easy to install and disassemble, improving work efficiency.
Application Scenarios
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Heavy Machinery: Full-thread quenched and tempered hexagon head bolts are ideal for heavy machinery that requires high stress and impact resistance, such as excavators, cranes, and presses.
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Bridges and Buildings: In bridges and buildings, key connection points need to bear significant weight and stress. Full-thread quenched and tempered hexagon head bolts provide robust connectivity and stability.
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Automotive and Aerospace Industries: These industries require extreme strength and reliability for connections. Full-thread quenched and tempered hexagon head bolts meet these demands, ensuring the safe operation of vehicles and aircraft.
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Other Applications Requiring High-Strength Connections: Applications such as mining equipment, oil drilling equipment, and wind turbines also utilize full-thread quenched and tempered hexagon head bolts to ensure connection reliability and safety.
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