Customization: | Available |
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Material: | Stainless Steel |
Type: | Countersunk Head |
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Standard | As per drawing |
Diameter | M3-M30 |
Head type | Hex, Allen,square,round and other |
Material | Carbon Steel, High Strength Steel, Stainless Steel, Brass etc. |
Surface treatment | Hot Galvanizing, Black, Color-Zinc, Blue-White Zinc |
Package | Plastic bag, Boxes and cartons, Pallets, Customized |
Price terms | EXW, FOB, CIF, etc. |
Payment terms | T/T, Paypal, L/C, Western union, etc. |
Certifications | ISO 9001 |
Note | Free Samples could be provided for standard fastener |
The expansion screw consists of a screw and an expansion tube. The tail of the screw is a cone, and the inner diameter of the cone is larger than the inner diameter of the expansion tube. When the nut is tightened, the screw moves outward, and the cone part moves through the axial movement of the thread, and then forms a great positive pressure on the outer surface of the expansion tube, and the Angle of the cone is very small, so that the friction between the wall, the expansion tube and the cone is self-locking, and then achieves the fixing effect.
Tengri fasteners Group is an OEM Fasteners Manufacturing, Plating/ Finishing and Industrial Production Company. Over 30 years of manufacturing stainless steel fasteners, industry experience and construction of state-of-art facility. We can offer the most common stainless steel fasteners or specially designed fasteners to exceed our customer's expectations, as our vendors are the best name brands in the industry.
a) Good after-sale service, all questions will be replied within 12 hours.
b) Customized design is available. ODM&OEM are welcomed.
c) We can provide free sample, consumer should pay the freight first.
d) Convenient transportation and fast delivery, all available shipping ways could be applied, by express, air or sea.
e) High quality and most competitive price.
f) Advanced produce and inspecting equipments.
Packaging & Transportation1.Can I order a small list ?
---Of course, you can.