Revision as of 02:52, 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]

Are deck screws compatible with aluminum? Some deck screws are polymer coated so they should work with aluminum if polymer doesn't srip
Deck screws are G185 or polymer coat [3]
Polymer coat on deck screws is epoxy [4] or ceramic [5]

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 *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]
-*Stitch screws - for bonding short lengths of metal n[https://www.menards.com/main/hardware/fasteners-connectors/screws/pole-barn-screws/grip-fast-reg-12-x-3-4-hex-drive-white-pan-head-stitch-screw-1-lb/229-9550/p-1444437348330-c-8934.htm?tid=7140820176832771573&ipos=3n]
+*Stitch screws - for bonding short lengths of metal [https://www.menards.com/main/hardware/fasteners-connectors/screws/pole-barn-screws/grip-fast-reg-12-x-3-4-hex-drive-galvanized-pan-head-stitch-screw-1-lb/229-9547/p-1444437351922-c-8934.htm?tid=4391120644177581407&ipos=4]
 =Drill Point Screws=