threading insert
No.1. Helical coil inserts introduction
A helical coil inserts , Another names we called threaded bushing;Screw Insert ,wire thread insert is a fastener element that is inserted into an object to add a threaded hole. It is made of high strength, precision, corrosion resistant and diamond wire.
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No.2.The application of Helical coil inserts
This Helical coil inserts are widely used in aircraft,aerospace,ship,optical instrument,ordnance industry,electronic appliances,mining industry,motor transport,railway cars,chemical industry,medical instruments,automobile/vehicles and so on
No.3.The advantages
1. It could enhance the connection strength and abrasion resistant, especially in AL, MG, Cast Iron and other low strength materials.
2.Improve thread's stress state and to be spring connection, remove the errors of pitch and thread angle, protect the thread avoiding to be broken, and extend working time.
3. Prevents the thread rusting, trip with perfect corrosion, high heat and abrasion resistant in many kinds of environments,repair the internal thread.
No.4.Technical parameter
Nominal Thread Size Nominal length Cylinder number Outside diameter in free condition Drill Diameter The weight of one thousand pieces
x d L min max (Kg)
M5*0.8 1 d 5 4.5 6.35 6.6 5.2 0.31
1.5 d 7.5 7.5 6.35 6.6 5.2 0.46
2 d 10 10 6.35 6.6 5.2 0.61
2.5 d 12.5 12.6 6.35 6.6 5.2 0.76
3 d 15 15.3 6.35 6.6 5.2 0.92
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1.The screw threads being locked by polygonal deformation of one or more turns of the thread.
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