Xinxiang Flight Fasteners Co., Ltd.
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Rigidity Wear Resistance Plastic Threaded Inserts M5 Heat Melting Brass Inserts
Information
Plastic inserts, commonly known as copper nuts, are usually embedded in the plastic to provide threads that can be removed and assembled repeatedly. Since plastics are divided into crystalline and non-crystalline types, four different installation types of plastic inserts have been derived, such as hot-melt ultrasonic embedded copper nuts (for example: QT), cold-pressed embedded copper nuts (SP ), self-tapping embedded copper nuts (for example: DG), injection molding embedded copper nuts (for example: DIN16903).
For different types of plastics, the principle of choosing plastic inserts is roughly as follows:
1. The crystalline plastic is relatively insensitive to stress, so all kinds of nuts can be applied
2. Amorphous plastic is very sensitive to stress. When choosing the nut type, avoid sharp knurling. Special care should be taken for those plastic parts that need to be electroplated for the screen. Pickling of the plastic parts with embedded nuts will cause serious cracking. It is best to first electroplating and embed the nuts.
3. Thermosetting plastics are not suitable for hot-melt and ultrasonic implantation of nuts. If necessary, you can choose precise and sharp knurled nuts to press in.
Specification
|
Type
| Thread | Length L | Head thickness T | Head diameter ФD1 | Outer diameter ФE | Guide column ФC |
| BP BPH | M2 | 3.1 | 0.5 | 4.8 | 3.5 | 3.1 |
| 4.2 | ||||||
| M2.5 | 4.1 | 0.75 | 5.5 | 4.5 | 3.9 | |
| 5.2 | ||||||
| M3 | 4.1 | 0.75 | 5.5 | 4.5 | 3.9 | |
| 5.2 | ||||||
| M3.5 | 4.1 | 0.75 | 6.4 | 5.5 | 4.6 | |
| 7.0 | ||||||
| M4 | 5.6 | 0.75 | 7.1 | 6.3 | 5.5 | |
| 8.5 | ||||||
| M5 | 6.6 | 0.9 | 7.9 | 7.0 | 6.3 | |
| 10.1 | ||||||
| M6 | 7.7 | 1.0 | 9.5 | 8.5 | 7.9 | |
| 12.3 | ||||||
| M8 | 8.3 | 1.03 | 12.7 | 10.5 | 9.5 | |
| 13.8 | ||||||
| M10 | 10.5 | 1.25 | 14.3 | 13.0 | 11.8 |
Knurled
Diamond flower: easy knurling curve, shallow knurling, massage control embedding process, not suitable for hot-melt process, good performance in process.
Twill flower: The knurling area and depth of the villain are easy to control, and it has a self-directed function when implanted, and the overall performance of torsion and tension is good.
The knurling standard of Lijingfan hardware implements the DIN82 standard.
The torsion force of the knurling is related to the traction angle: with the angle of the rising value, the tensile force becomes larger and larger; the heating value increases slightly
FAQ
Q: Are you trading company or manufacturer ?
A: We are factory.
Q: How long is your delivery time?
A: Generally it is 3-10 days if the goods are in stock. or it is 15-20 days if the goods are not in stock, it is according to quantity.
Q: Do you provide samples ? is it free or extra ?
A: Yes, we could offer the sample for free charge but do not pay the cost of freight.
Q: What is your terms of payment ?
A: Payment≤4000USD, 100% in advance. Payment≥4000USD, 30% T/T in advance ,balance before shippment.
Q: Do you accept customization?
A: Yes, we can accept the customization of material, specification, painting color, length accuracy, and certain non-standard products