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Max Online: 36273 @ 01/23/13 02:34 PM
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#11578003 - 05/02/16 10:43 AM drilling into aluminium boats transom?
mikey6345 Offline
Outdoorsman

Registered: 09/29/14
Posts: 246
Loc: Dallas
Hello all!

I just bought one of the shallow water anchor pin mounts that someone on this site sells as I already had an 8' pin. Trying to get the screws into the aluminium is not working well for me. I have a pretty powerful drill and drilled pilot hole in ever expanding size until it is just smaller than screw. I can't get the screw to turn/bite into the aluminium and I am starting to strip the head.

Any ideas for me? Is there a specific type screw that will have threading that will cut into the transom?

Thanks in advance.

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#11578007 - 05/02/16 10:45 AM Re: drilling into aluminium boats transom? [Re: mikey6345]
Cast Offline
TFF Celebrity

Registered: 07/31/12
Posts: 6899
Loc: North Texas - God's Country
You need a better fastener. Screws should thread into aluminum easy, too easy.
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Cast



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#11578062 - 05/02/16 11:09 AM Re: drilling into aluminium boats transom? [Re: mikey6345]
smooth move Online   content
Extreme Angler

Registered: 10/14/12
Posts: 1115
Loc: bayou vista,tx
why don't you drill all the way thru and put bolts in with a sealer?
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#11578495 - 05/02/16 01:20 PM Re: drilling into aluminium boats transom? [Re: mikey6345]
psycho0819 Offline
Extreme Angler

Registered: 03/27/05
Posts: 1508
Loc: Kaufman
I second cast's opinion, find a different fastener. It sounds as if the threads on the tip aren't aggressive enough to take the initial bite into the aluminum.
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If you're not living on the edge, you're taking up too much space!

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#11578540 - 05/02/16 01:48 PM Re: drilling into aluminium boats transom? [Re: mikey6345]
Cat finder Offline
Angler

Registered: 03/14/15
Posts: 401
Loc: Dallas, Texas
Stainless steel self tap screws will do the job. Don't forget to put some sort of sealant on the screw and bracket before installing.
_________________________
If the fish don't bite your not baiting right...

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#11578938 - 05/02/16 04:40 PM Re: drilling into aluminium boats transom? [Re: mikey6345]
Bob Landry Offline
Extreme Angler

Registered: 08/10/11
Posts: 2661
Loc: Austin, Tx
I would never trust screws to hold anything in aluminum that was going to be subjected to stress. Drill through the transom and through-bolt it using large fender washers or aluminum plate for backing.
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2015 Seaark 1872 MV CC Etec-90
Two Helix 12 CHIRP SI's, , MinnKota Riptide ST80/i-pilot Link, Bob's Hydraulic
2018 Robalo R180 CC, Yamaha 115

Bitter Gun Owner
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#11579179 - 05/02/16 06:35 PM Re: drilling into aluminium boats transom? [Re: mikey6345]
Pat Goff Online   content
TFF Celebrity

Registered: 01/29/05
Posts: 5266
Loc: Marble Falls/Seadrift
Thru bolt stainless hardware and 3M 4200 seals it all up. Anything less is going to fail.
_________________________
Pat Goff
Marble Falls/Seadrift TX



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