2. and aluminum screws will break to easily... 3. boats come from the manufacturer with stainless deck screws mounting the deck to aluminum sub-structure 4. electrical equipment manufactures building for type 2 and above hazardous locations use stainless for their cabinets...for the longevity of the cabinet and so that any and all conduit types. I am planning on replacing the floor on a 1977 16' starcraft aluminum boat. i know i have to remove the old floor but i need to know how to remove the shelves and support on the inner sides. i assume that i drill out the old rivets and remove the inner supports/ shelves.. The cost is about the same as ss. i put about 25 percent more screws and bolts in than if i had used ss. the strength of aluminum is not the same as ss. check on the shear strength of aluminum bolts and you will be surprised how strong they are. my boat sits in salt water about 5 months per year..
How to use the right fastener. by don casey. first, assess the load this fastener will need to handle. machine screws are identical to bolts but thread into a tapped hole. sheet-metal and wood screws are self-tapping, cutting threads into the smooth surface of a drilled hole. install boat deck fittings. once you've picked the. Just redoing the two decks. the back deck is aluminum but the middle and from are wood. leaving the aluminum beams in place that the deck screws into and replaced the foam in the boat! so the new decks will be screwed into the crossbeams that are welded to the hull. A test on teks self drilling screws to determine usefulness in securing my decking to to the boat framing and aluminum seats..
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