ASTM A193/A193M B7M All Threaded Stud Bolts
Alloy steel bolting for pressure vessels, valves, flanges, and fittings for high temperature or high pressure service, or other special purpose applications.
Standard: IFI-136, ASME B16.5, DIN976
Inch Size: 1/4”-4” with various lengths
Metric Size: M6-M100 with various lengths
Other Available Grade:
ASTM A193/A193M B7, B7M, B16 B8 Class 1 & 2, B8M Class 1 & 2,
ASTM A320/A320M L7, L7M, L43, B8 Class 1 & 2, B8M Class 1 & 2, and so on.
Finish: Plain, Black Oxide, Zinc Plated, Zinc Nickel Plated, Cadmium Plated, PTFE etc.
Packing: Bulk about 25 kgs each carton, 36 cartons each pallet
Advantage: High Quality and Strict Quality Control, Competitive Price,Timely Delivery; Technical Support, Supply Test Reports
Please feel free to contact us for more details.
The SKF compact inverted roller screw represents a unique design variant of the planetary roller screw. Learn more about our products at https://bit.ly/Kgv76g
Related videos:
https://www.youtube.com/watch?v=alEv0crNAnk
The SKF compact inverted roller screw works on the same principle as a planetary roller screw, with the roller’s rotation being synchronized with the threaded shaft through toothed rings. This design provides powerful electromechanical actuation, when compactness and high load capability are prerequisites. Both nut and shaft can be driven by an electric motor, with the non-rotating component acting as the rod of an actuator. The application loads acting on the translating rod transit through the planetary rollers to the rotating shaft or nut. Toothed rings and guides ensure the rolling motion and an even circumferential position of the rollers, for perfect load distribution and to eliminate any parasitic friction between rollers.
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We show you how to galvanize metal objects to protect them rust.
First we get 30g of zinc sulfate and dissolve it into 100mL of water.
Zinc sulfate was made back in our video on making a copper sulfate and
zinc battery: https://www.youtube.com/watch?v=Id3tL2iI0Vw
Then connect the item you want to galvanize to the negative terminal of a 5 volt power supply. Connect the positive terminal to a strip of zinc metal.
Zinc metal was obtained from our video on getting useful materials from batteries: https://www.youtube.com/watch#%21v=knc1lSupAwQ
Immerse both electrodes into the zinc sulfate solution and keep them from touching. Then turn on the current and run it for about one minute to give the metal a zinc coating.
Remove the object and now it’s galvanized.
To test the rust protection, place it on top of a paper towel soaked in saltwater. You should also place an unprotected item next to it for a good comparison. Cover the towel to prevent evaporation and wait a day or two.
The treated object should remain rust-free, perhaps developing a white crusty coating. The untreated object should start to rust.