Cruisers Forum
 


Join CruisersForum Today

Reply
 
Thread Tools Rate Thread Display Modes
Old 10-04-2012, 13:28   #16
Registered User
 
capn_billl's Avatar

Join Date: Aug 2010
Location: Houston,Tx
Boat: Maxum 37'
Posts: 1,587
Re: Seized screw in fiberglass deck.

Grind or file the top of the screw, problem solved.

I've successfully drilled screws out, but only if they were threaded into metal. WHen in a soft material like fiberglass, the drill inevitably slipped and sunk into the surrounding material,...but then the screw came right out.
__________________

__________________
capn_billl is offline   Reply With Quote
Old 10-04-2012, 14:01   #17
Registered User

Join Date: May 2009
Location: Massachusetts
Boat: 40' Silverton Aftcabin with twin Crusaders
Posts: 1,589
Re: Seized screw in fiberglass deck.

If there is any head left on the screw by now, try putting your screwdriver back in the slot or whatever type of screw it happens to be. Next whack the top of the screwdriver with a hammer.

Lost count of the number of screws and bolts that I have removed after whacking them to loosen the bond between the screw and the holding surfaces.

Foggy
__________________

__________________
foggysail is offline   Reply With Quote
Old 10-04-2012, 14:15   #18
Registered User
 
cburger's Avatar

Join Date: May 2006
Location: Nyack, NY
Boat: Westsail 32
Posts: 1,546
Images: 1
Re: Seized screw in fiberglass deck.

You might have a nut on the underside that is preventing you from extracting the screw.
Try snapping a vice grip on the screw head in a horrizontal position and slowly back the screw, bolt out, work wonders.
__________________
"All men are created equal, some are just more equal than others"
cburger is offline   Reply With Quote
Old 10-04-2012, 15:10   #19
֍֎֍֎֍֎֍֎֍֎

Cruisers Forum Supporter

Join Date: Apr 2006
Posts: 13,022
Re: Seized screw in fiberglass deck.

mes-
If that is a slotted screw, sometimes it helps to get a dremel tool in there and make the slot a bit deeper, and match it up to the bit you want to use on it. An impact driver really ought to break it free IF the bit matches up and you are using a deadhammer, maul, something like that to whack it.

If you have a supermarket or other loca source to buy dry ice, try buying one small block of that and a bottle of alcohol. Bust up the dry ice, make a slurry and pack it over the offending screw. Give it ten minutes to freeze up, try the impact hammer. If it doesn't budge, give it ten more minutes and try again.

Freezing tends to release stuck parts just as well as torching them, but won't set the boat on fire.
__________________
hellosailor is offline   Reply With Quote
Old 10-04-2012, 15:32   #20
Senior Cruiser
 
Vamonos's Avatar

Cruisers Forum Supporter

Join Date: May 2011
Boat: Pearson 385
Posts: 179
Re: Seized screw in fiberglass deck.

Screw and bolt exctractors do not work for fasteners that are seized. If the fastener snapped from a sideways force or (sometimes) from being overtightened, THEN the extractor may work. The extractors grip on the fastener will NOT be stronger than the original metal. And as said before, if you break that extractor off in the fastener, the extractor is harder than any drill bit you have in your tool box.
__________________
Vamonos is offline   Reply With Quote
Old 10-04-2012, 19:01   #21
Registered User
 
sabray's Avatar

Join Date: Aug 2008
Location: Wash DC
Boat: PETERSON 44
Posts: 3,169
Screw extractors do work. You drill a small hole and then insert the extractor. Tap it with a hammer and try again you might get a bight. If not drill a bigger hole and try with the next extractor. When the head breaks off from drilling you remove the track and use vice grips to grab the screw body or option 2 hollow bit extractor and drill around the body. Wallah you have removed the screw using a screw extractor.
__________________
sabray is offline   Reply With Quote
Old 10-04-2012, 19:09   #22
Resin Head
 
minaret's Avatar

Cruisers Forum Supporter

Join Date: Aug 2007
Location: Seattle WA
Boat: Nauticat
Posts: 7,198
Images: 52
Re: Seized screw in fiberglass deck.

[QUOTE=sabray;928462 Wallah you have removed the screw using a screw extractor.[/QUOTE]


Just so you know wallah is a derogatory (sort of) Hindu term for a menial laborer, ie chai-wallah, dhobi-wallah, punkha-wallah, etc. I believe you were looking for voila, a french term meaning "here it is" or literally "look there". Sorry to be a spelling nazi I just couldn't help that one.
__________________
minaret is offline   Reply With Quote
Old 10-04-2012, 19:36   #23
Registered User

Join Date: Jun 2010
Location: Sailing the Caribbean
Boat: Switch 51
Posts: 1,498
Re: Seized screw in fiberglass deck.

Quote:
Originally Posted by noelex 77 View Post
I would drill the screw out, fill the hole with expoy ( use an alen key to break up core around the hole and also fill with expoy if it's a cored deck) and re-tap the thread.
People always make this suggestion but I am not sure any of them have really tried it. Unless the core is really punky this is a good way to have a maniac little drill on your hands. Get the right depth router bit and use that. Much easier to handle.
__________________
SVNeko is offline   Reply With Quote
Old 10-04-2012, 20:03   #24
Registered User
 
dandrews's Avatar

Cruisers Forum Supporter

Join Date: Nov 2010
Location: Shirley, MA
Boat: Bristol 34
Posts: 235
Quote:
Originally Posted by skipmac
Before trying an EZ Out or other brand of screw extractor you might want to read the comments on this thread I started after my last (last and final forever) experience.

Broken EZ Out
For those who have used those extractors with success, I complement you. I have never been successful on many many attempts. Will never pick up one again.

Don
__________________
dandrews is offline   Reply With Quote
Old 10-04-2012, 20:17   #25
Registered User
 
leftbrainstuff's Avatar

Join Date: May 2011
Location: San Francisco and Australia
Boat: Liberty 458
Posts: 1,978
When a screw extractor isn't practical, especially on small screws, I weld an electrode ro the head and then use vice grips as a wrench.

Stick welder is ok for 1/4" up and I use a Tig torch for smaller fasteners. I have a purpose built ground probe which requires a third hand. Have performed this task dozens of times with no damage to the surroundings.
__________________
leftbrainstuff is offline   Reply With Quote
Old 10-04-2012, 20:38   #26
Registered User

Join Date: Feb 2008
Posts: 2,060
Re: Seized screw in fiberglass deck.

My only experience with extractors is to have them break off. I have had success removing the broken extractor by grinding it out with a Dremel chain saw sharpening bit (or 3 or 4 of them). It takes patience.
__________________
SailFastTri is offline   Reply With Quote
Old 11-04-2012, 09:53   #27
Registered User
 
sabray's Avatar

Join Date: Aug 2008
Location: Wash DC
Boat: PETERSON 44
Posts: 3,169
Re: Seized screw in fiberglass deck.

Quote:
Originally Posted by minaret View Post
Just so you know wallah is a derogatory (sort of) Hindu term for a menial laborer, ie chai-wallah, dhobi-wallah, punkha-wallah, etc. I believe you were looking for voila, a french term meaning "here it is" or literally "look there". Sorry to be a spelling nazi I just couldn't help that one.
Minaret,
In arabic it means I swear to god so its probably more blasphemous then derogatory. Thanks for pointing out the other definition. Either way several faiths are going to look poorly upon me. I have also wallahed at a screw extractor.
__________________

__________________
sabray is offline   Reply With Quote
Reply

Tags
fiberglass

Thread Tools
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off




Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 18:08.


Google+
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.