sheet metal screw length

barnyard

Seaman
Joined
Jul 29, 2016
Messages
51
will be installing toilet (head) on 93 23' larson. Is 5/8" or 3/4" screws Ok for screwing brackets into lower hull for holding tank? What safe length for side hull?
 

barnyard

Seaman
Joined
Jul 29, 2016
Messages
51
will be installing toilet (head) on 93 23' larson. Is 5/8" or 3/4" screws Ok for screwing brackets into lower hull for holding tank? What safe length for side hull?
or would it be better to use short screws with epoxy?
 

Scott Danforth

Grumpy Vintage Moderator still playing with boats
Staff member
Joined
Jul 23, 2011
Messages
51,228
brand is what every you get from your local boatyard resin supply house.
 

airshot

Vice Admiral
Joined
Jul 22, 2008
Messages
5,792
Tell the local hdwe guy what your glueing together, he should know..
 

dingbat

Supreme Mariner
Joined
Nov 20, 2001
Messages
16,622
You don't "screw" anything on a boat. Vibration over time will loosen and cause the connection to fail.

Every thing should be thru-bolted with generously sized washer to spread the load over a larger surface area
 
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