rust spots on stainless screws arn't from cheap stainless they are usually from using a steel screwdriver, use a stainless steel screw driver on stainless fasteners then deposits won't be left behind.
rust spots on stainless screws arn't from cheap stainless they are usually from using a steel screwdriver, use a stainless steel screw driver on stainless fasteners then deposits won't be left behind.
The man knows of what he speaks !!!!
With stainless it comes down to using the right alloy for the application. Metals are alloyed to produce specific properties within a materials. Quite often the characteristics that make the materials attractive in one application may have dire consequences when used in another application.
The material that is alloyed to be corrosion resistant and have enough ductility to be used to press sinks from flat sheets of materials isn?t necessarily the material you want to support the weight of a suspension bridge.
Having said that, no Lowes screws on my boat. Never will be. Freshwater you can get away with "less than ideal" grade hardware. Saltwater, not worth the $$ you save.
FWIW: Never seen nor heard of a stainless steel driver. Issues with surface hardening stainless. The tips of good quality screw drivers are surface hardened so your not going to cross contaminate stainless steel with a quality screw driver. Spotting on stainless screws comes from the piece not being passivated after the machining / forming process.
Never seen 318 stainless used in screw form. Typically used as sheet in the formation of sinks and stuff like that. For "marine" grade 316 or better yet 316L are what you want to use.