Revision as of 02:31, 1 February 2023

Fasteners for Aluminum

This article says that stainless is best for screwing in aluminum, but must minimize corrosion such as rubber washer between screw head and aluminum sheet. It does not talk about contact between threads of screw and the aluminum - it appears the head is more important than the threads. [1]
Stainless and galvanized are ok with aluminum, as long as not salty environment [2]

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 =Pole Barn Screws=
-*2" menards = [https://www.menards.com/main/hardware/fasteners-connectors/screws/pole-barn-screws/pro-grip-10-wood-grip-hex-drive-pole-barn-screw/galvanized2301503/p-1444448610897-c-8934.htm#:~:text=The%20preferred%20siding%20and%20roofing,provides%20a%20water%20tight%20seal.]
+*1" menards - [https://www.menards.com/main/hardware/fasteners-connectors/screws/pole-barn-screws/pro-grip-10-wood-grip-hex-drive-pole-barn-screw/galvanized2301503/p-1444448610897-c-8934.htm#:~:text=The%20preferred%20siding%20and%20roofing,provides%20a%20water%20tight%20seal.]
 *They are galvanized - [https://www.amazon.com/Metal-Roofing-Screws-Galvanized-Starting/dp/B081G96JM8/ref=sr_1_3?keywords=pole%2Bbarn%2Bscrews&qid=1675218015&sr=8-3&th=1]