Brass Copper Set Screw Grub Screws
Metric Size: M1.4 - M52, Inch Size: 0# - 2"
Hexagon Socket(Allen), Torx Star, Square, Slotted Drive Types
Flat Point, Cup Point, Cone Point, Dog Point
Other Drive and Point Type are also available acc. to customer requirement
Various Surface Finishes
Various Material Grades are available
Please feel free to contact us for more details
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.
To cut a hexagonal hole with a POP Avdel 74290 compressed air tool, you must first set the mouthpiece so that the spacing is sufficient for the cutting unit to project beyond the back of the component. Then simply insert it in the hole, press the trigger, draw it out and finally shake out the metal chips.
Using the POP Avdel 74290 compressed air tool, hexagon holes can be cut in next to no time in all those places where access is only possible from one side. The working process is extremely quick and simple. The compressed air tool with its shock-resistant plastic casing and single-stage trigger is suitable for cutting hexagon holes for blind rivet nuts from M4 to M10 in lightweight metal, steel and stainless steel sheet.