4x12mm "High Strength" Socket Head Cap Screws (10) by ProTek RC
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This is a pack of ten 4x12mm "High Strength" Socket Head Cap Screws from ProTek R/C. These are made from metric grade 12.9 steel which has a minimum tensile strength of 174,000 PSI. These screws are the strongest you can get and are suitable for the most demanding applications! Most manufacturer brand screws are not grade 12.9 steel, so these are a great upgrade for your car, truck or helicopter!
This product was added to our catalog on July 1, 2009.
Wednesday, May 20 2015 (about a year ago)
ProTek RC 4x12mm "High Strength" Socket Head Cap Screws (10)
These are actually a lot nicer than I expected. I was expecting bottom of the barrel, dull finished screws. These are actually very very nice! If I recall they're made by YFS like most RC screws but they are cut perfectly and clean and shiny and appear very high quality. Using them to mount a big motor.