For example select 1 4 20 rather than 1 4 28 screws for mounting hardware to a mast.
Attaching wood to aluminum boat.
Bolts need to be threaded completely.
They can also be used to efficiently fasten metal to other materials such as wood or plastic by creating a much stronger bond than a regular nail.
Attaching plywood to aluminum post by bassboy72 02 mar 2012 23 44 i am looking to attach some plywood to the top of my bench seats to then in turn attach boxes i have made to raise the height of my swivel boat seat.
Note that tensile loads on screws place shear loads on the threads so in soft material like aluminum you ll generally get greater holding power with thicker i e coarser threads.
You either take the time to do it right or pay the price when it comes time to sell your boat.
They can be used to securely fasten metals together including aluminum.
Bonus content at the end of the vi.
You can use bolts that are made specifically to screw wood to metal or steel if you re attaching a wood flush.
Self tapping screws also called sheet metal screws are very versatile.
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Wood and sheet metal screws require pilot holes.
Drilling the guide holes is done to slide the bolts on the wood into the metal frame.
Bolt the wood to the metal frame by pre cutting holes so the bolts fit through.
Aluminum is a corrosion resistant metal that holds up well in harsh environments.