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The Anti-loose Machine Screw is engineered for applications where vibration and dynamic loads can loosen standard fasteners, compromising safety and functionality. This screw incorporates advanced design features such as nylon patches, pellet inserts, or a prevailing torque locknut mechanism that resist loosening under vibration and shock. Made from high-grade materials, it ensures durability and long-lasting performance. Its versatile nature makes it ideal for use in automotive, aerospace, heavy machinery, and any other sectors where reliability is crucial. The Anti-loose Machine Screw provides a secure, maintenance-free solution that enhances the structural integrity of assemblies, reducing downtime and repair costs due to fastener failure
Thread size (d) | |||
P | Pitch | ||
dz | Maximum | ||
Minimum | |||
s | Nominal | ||
Maximum | |||
Minimum | |||
t | Minimum | Short screw | |
Long screw | |||
e | Minimum | ||
L0 ① | Nominal | ||
Thousand pieces of steel weigh ≈ kg |
Thread size (d) | |||
P | Pitch | ||
dz | Maximum | ||
Minimum | |||
s | Nominal | ||
Maximum | |||
Minimum | |||
t | Minimum | Short screw | |
Long screw | |||
e | Minimum | ||
L0 ① | Nominal | ||
Thousand pieces of steel weigh ≈ kg | |||
①, When L≤L0, it is a short screw; when L>L0, it is a long screw. |
M1.4 | M1.6 | (M1.8) | M2 | M2.5 | M3 | M4 | M5 | M6 |
0.3 | 0.35 | 0.35 | 0.4 | 0.45 | 0.5 | 0.7 | 0.8 | 1 |
0.7 | 0.8 | 0.9 | 1 | 1.2 | 1.4 | 2 | 2.5 | 3 |
0.45 | 0.55 | 0.65 | 0.75 | 0.95 | 1.15 | 1.75 | 2.25 | 2.75 |
0.7 | 0.7 | 0.7 | 0.9 | 1.3 | 1.5 | 2 | 2.5 | 3 |
0.724 | 0.724 | 0.724 | 0.902 | 1.295 | 1.545 | 2.045 | 2.56 | 3.08 |
0.711 | 0.711 | 0.711 | 0.889 | 1.27 | 1.52 | 2.02 | 2.52 | 3.02 |
0.6 | 0.7 | 0.8 | 0.8 | 1.2 | 1.2 | 1.5 | 2 | 2 |
1.4 | 1.5 | 1.6 | 1.7 | 2 | 2 | 2.5 | 3 | 3.5 |
0.803 | 0.803 | 0.803 | 1.003 | 1.427 | 1.73 | 2.3 | 2.87 | 3.44 |
2 | 2 | 2.5 | 2.5 | 3 | 4 | 5 | 5 | 6 |
- | - | - | - | - | - | - | - | - |
M8 | M10 | M12 | (M14) | M16 | (M18) | M20 | (M22) | M24 |
1.25 | 1.5 | 1.75 | 2 | 2 | 2.5 | 2.5 | 2.5 | 3 |
5 | 6 | 8 | 9 | 10 | 12 | 14 | 16 | 16 |
4.7 | 5.7 | 7.64 | 8.64 | 9.64 | 11.57 | 13.57 | 15.57 | 15.57 |
4 | 5 | 6 | 6 | 8 | 10 | 10 | 12 | 12 |
4.095 | 5.095 | 6.095 | 6.095 | 8.115 | 10.115 | 10.115 | 12.142 | 12.142 |
4.02 | 5.02 | 6.02 | 6.02 | 8.025 | 10.025 | 10.025 | 12.032 | 12.032 |
3 | 4 | 4.8 | 5.6 | 6.4 | 7.2 | 8 | 9 | 10 |
5 | 6 | 8 | 9 | 10 | 11 | 12 | 13.5 | 15 |
4.58 | 5.72 | 6.86 | 6.86 | 9.15 | 11.43 | 11.43 | 13.72 | 13.72 |
8 | 10 | 12 | 14 | 16 | 18 | 20 | 22 | 25 |
- | - | - | - | - | - | - | - | - |