What is the best way to fasten something to a Sailboat Mast
steps, goose neck or cleats
A boat mast is usually 1/8 inch thick and painted or anodized. Is very easy to drill and tap as it’s very soft.
Most mast makers like Z Spars, Selden and Sparcraft use Aluminum
Blind Rivets because they work well.
1) All Aluminum Blind Rivets are the 1st choice
· * No galvanic corrosion
issues – aluminum mast/ all aluminum rivets
· * Very easy and fast to install
· * Tool and rivets are cheap
· * No real accuracy is needed
· * Rivets are self-tightening and conforms to a sloppy hand drilled holes
2) Drill & Tap would be a 2nd choice as it takes more tools and skills
· * Using Stainless Steel
screws and bolts can have galvanic Corrosion
· * Very detailed and slow process
· * Need special and sometimes expensive tools
· * Hand drills and hand taps are not very accurate and prone to angled or oval holes
3) Fine or Course threads for taped holes on a mast?
· * Fine thread are preferred as they are 10% stronger and cover more surface area
· * Fine threads do not tear the soft aluminum that boat masts are made of
· * Fine threads give you more threads to hold onto the 1/8 inch thickness of a mast
· * You will want to use Tef-Gel or Loctite Blue 242 on the threads