Quality Technology
IFI524 Full Torque Standard Value
Release time:
2020-12-23 09:04
Source:
IFI is the International Industrial Fastener Association (Industrial Fasteners Institate). IFI524/IFI124 is the only globally recognized anti-loosening torque test specification for non-metallic anti-loosening materials, and is also the main basis for customizing anti-loosening specifications for various industries.
| Screw specifications | 全扭力值 ( Prevailing-Torque ) kgf-cm | Screw specifications | 全扭力值 ( Prevailing-Torque ) kgf-cm | ||||
| (Metric) | At primary chain time (maximum) | At primary exit (minimum) | At Fifth Exits (Minimum) | (Metric) | At primary chain time (maximum) | At primary exit (minimum) | At Fifth Exits (Minimum) |
| M1.6*0.35 | 1.02 | 0.1 | 0.04 | M8.0*1.25 | 102.5 | 9.2 | 5.9 |
| M2.0*0.4 | 2.04 / 0.8(Acer) | 0.2 | 0.1 | M10*1.5 | 143 | 17.5 | 10 |
| M2.5*0.45 | 4.08 / 1.2(Acer) | 0.51 | 0.3 | M12*1.75 | 215 | 25 | 15 |
| M2.6*0.45 | 4.2 | 0.55 | 0.35 | M14*2.0 | 306 | 35 | 22.5 |
| M3.0*0.5 | 6.12 / 2.5(Acer) | 1.42 / 1.05(Acer) | 0.6 | M16*2.0 | 408 | 50 | 35 |
| M3.5*0.6 | 9.18 | 2.24 | 1.12 | M20*2.5 | 620 | 80 | 55 |
| M4.0*0.7 | 12.5 | 2.5 | 1.5 | M24*3.0 | 918 | 130 | 85 |
| M5.0*0.8 | 23.5 | 3.5 | 2.25 | M30*3.5 | 1224 | 193 | 132 |
| M6.0*1.0 | 30.75 | 4.5 | 3 | M36*4.0 | 1530 | 285 | 183 |
| 1. This specification is based on IFI524 standard. | |||||||
| 2. If the screw or tooth is too short, the torque standard shall be determined by the user and the manufacturer through consultation. | |||||||
| 3. Customers have special specifications according to their specified standards. | |||||||
| 4. The lock for test shall be of the same tooth type, grade and pitch as the screw, and shall conform to the standard test block of GO/NO GO plug gauge test. | |||||||
| 5. Torque conversion: | 1 kg-m=100 kg-cm=9.8 N-m | kg-m: kg-m, kg-cm: kg-cm. | |||||
| 1 N-m = 10.2 kg-cm = 8.55 lb-in | N-m: Newton-meter, lb-in: inch-pound. | ||||||
| 1 lb-in=1.15 kg-cm=0.113 N-m | |||||||
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IFI524 Full Torque Standard Value
IFI is the International Industrial Fastener Association (Industrial Fasteners Institate). IFI524/IFI124 is the only globally recognized anti-loosening torque test specification for non-metallic anti-loosening materials, and is also the main basis for customizing anti-loosening specifications for various industries.
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