Self-drilling screws, also known as TEK screws, do not require a hole to be drilled prior to use which cuts down on time needed to drill and fasten materials by combining them. These have the same heads as traditional bolts and screws, but the fastener is designed with a drill flute on the tip to drill/fasten at the same time. Useful for quick sheet metal fastening and other applications like metal to metal or wood to metal.
 Jiaxing Haina Fastener co. Ltd was established in 2010, located in the hometown of fasteners jiaxing city. For many years of export experience, our products has been best-selling in Europe, the United States, the Middle East and Southeast Asia. The products are manufactured by more functions machine, which is brought in domestic and foreign well-known enterprises. The products made are fully compatible with the international standards, well received by domestic and foreign customers. Through scientific management, Jiaxing Haina fastener Ltd company has been obtained ISO9000 certificate of Quality Managerment System, SGS and BV international certificate system of Make in China.
Self-drilling screws, also known as TEK screws, do not require a hole to be drilled prior to use which cuts down on time needed to drill and fasten materials by combining them. These have the same heads as traditional bolts and screws, but the fastener is designed with a drill flute on the tip to drill/fasten at the same time. Useful for quick sheet metal fastening and other applications like metal to metal or wood to metal.
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Two-stage Compression Air Compressor
Comparing with single stage compression compressor, two stage compressor is closed to the maximum energy saving and isothermal compression, it can save energy by more than 10%.
Much more approaching isothermal efficiency to drive dual PM motor, dual air end and dual cooling fan in more coordinated mode, slipping the traditional leash and adoption of all new generation VF control algorithms. Automatically constant mid pressure between the first stage and second stage and intelligent flexible regulating pressure according to site situation can save power consumption maximum.
Portable Two Stage Screw Air Compressor, Heavy Duty Energy Saving Two Stage Screw Air Compressor,Cfm Air Compressor
Henan YK Prospecting Machinery Co., Ltd , https://www.yikyuirig.com