stripped marine screws
-
- Rank: Banjo
- Joined: Mon Nov 19, 2012 8:27 pm
stripped marine screws
Hi guys,
I've got two marine screws that go into seat posts that are completely stuck in. In an attempt to get them out i stripped the screws. Is there any reason they are so damn stuck in there? I managed to get all the others out and notice two were self tapping and two were bolt style screws that threaded into something else. What are my options to get these bastards out?
I've got two marine screws that go into seat posts that are completely stuck in. In an attempt to get them out i stripped the screws. Is there any reason they are so damn stuck in there? I managed to get all the others out and notice two were self tapping and two were bolt style screws that threaded into something else. What are my options to get these bastards out?
- Attachments
-
- IMG_20180329_113457821.jpg (1010.33 KiB) Viewed 1146 times
-
- IMG_20180329_113454988.jpg (1011.04 KiB) Viewed 1146 times
-
- Rank: Cephalopod
- Joined: Thu Oct 26, 2017 7:25 pm
Re: stripped marine screws
Might be bolt style with nuts underneath.
If you can't get under there you might have to drill them out. Gotta love corrosion. It's everywhere with boats.
If you can't get under there you might have to drill them out. Gotta love corrosion. It's everywhere with boats.
- Fish-cador
- Rank: Kingfish
- Joined: Fri Jul 08, 2011 1:00 pm
- Has liked: 10 times
- Likes received: 105 times
Re: stripped marine screws
I agree with duffman.
If there is no nut, your option are:
Use impact screw driver
Drill them out or
Weld a bolt with hex nut and use a wrench
If there is no nut, your option are:
Use impact screw driver
Drill them out or
Weld a bolt with hex nut and use a wrench
-
- Rank: Banjo
- Joined: Mon Nov 19, 2012 8:27 pm
Re: stripped marine screws
The screw parts are gone 100% so my only option is to drill. Are there certain drill bits i should use for these kinda screws?Fish-cador wrote:I agree with duffman.
If there is no nut, your option are:
Use impact screw driver
Drill them out or
Weld a bolt with hex nut and use a wrench
-
- Rank: Cephalopod
- Joined: Wed Sep 21, 2016 8:28 am
- Has liked: 11 times
- Likes received: 24 times
Re: stripped marine screws
slow drill speed and quality bits...you only want to try take the head off...and not drill it completley out. Once the head is gone, you should be able to pull the base off, then use vice grips to take the rest of the piece out.
Those screws will be into the bearers under the floor, not bolted, just drilled and tapped. Try get you hands on some "rost off" or siezed bolt remover spray and leave it soak.
You can sometimes use WD40 but it takes a lot longer.
Otherwise try use an impact driver...if there is a head left...
When you go to put the rest of them back in...use some grease on the threads to help for next time
Those screws will be into the bearers under the floor, not bolted, just drilled and tapped. Try get you hands on some "rost off" or siezed bolt remover spray and leave it soak.
You can sometimes use WD40 but it takes a lot longer.
Otherwise try use an impact driver...if there is a head left...
When you go to put the rest of them back in...use some grease on the threads to help for next time
-
- Rank: Premium Member
- Joined: Thu Apr 26, 2012 5:16 pm
- Has liked: 39 times
- Likes received: 356 times
Re: stripped marine screws
Drill the head of so you can remove the seat then use some long nose plyer and twist them.out
-
- Rank: Kingfish
- Joined: Thu Aug 08, 2013 5:08 pm
- Location: Bellarine peninsula
- Has liked: 333 times
- Likes received: 569 times
Re: stripped marine screws
There are special tools you can use some are called easy outs drill the head with a small drill you the put the easy out in the hole and turn they screw them selves into the bolt with a left hand thread allowing you to unscrew the stuck bolt, definitely put some form of penetrating fluid on the screw and let it soak.
If you drill off the head use a drill just larger than the diameter of the screw this will leave a larger stump left and use multi grips to turn the bolt put the multi grips on as tight as you can.
If you drill off the head use a drill just larger than the diameter of the screw this will leave a larger stump left and use multi grips to turn the bolt put the multi grips on as tight as you can.
-
- Rank: Australian Salmon
- Joined: Fri Jul 31, 2015 7:35 am
- Has liked: 1 time
- Likes received: 38 times
Re: stripped marine screws
Are the bolts / screws that you removed Steel / Brass or Stainless Steel? - Once you have managed to get all of the Screws / Bolts out, clean the holes with Metho / Mineral Turps etc. once cleaned fill holes with araldite or Marine adhesive / sealant - Allow 48 hours + to cure/harden - Longer if you wish.
Remove base from seat stem and use it as a template to drill new holes, please base on floor and align the holes in the base and the screw holes you have filled, then, rotate the base clockwise or anticlockwise so that the holes in the base are between the original holes you plugged / filled.
Pilot drill the 6 mounting holes, remove the base and drill suitable size holes for the screws that you are going to use - Use only Stainless steel bolts / screws.
Alternatively, plug the holes as above then get a piece of 4 or 6 mm stainless steel and attach base to it and then attach it to the floor using all stainless steel fasteners.
Feedback appreciated.
Remove base from seat stem and use it as a template to drill new holes, please base on floor and align the holes in the base and the screw holes you have filled, then, rotate the base clockwise or anticlockwise so that the holes in the base are between the original holes you plugged / filled.
Pilot drill the 6 mounting holes, remove the base and drill suitable size holes for the screws that you are going to use - Use only Stainless steel bolts / screws.
Alternatively, plug the holes as above then get a piece of 4 or 6 mm stainless steel and attach base to it and then attach it to the floor using all stainless steel fasteners.
Feedback appreciated.
- adamk
- Rank: Premium Member
- Joined: Sat Feb 07, 2015 3:48 am
- Location: laverton
Re: stripped marine screws
you try using a easyout ?
https://www.youtube.com/watch?v=wWIk0DghB9c
i had antennas i had to do it to when i moved house
https://www.youtube.com/watch?v=wWIk0DghB9c
i had antennas i had to do it to when i moved house
-
- Rank: Banjo
- Joined: Mon Nov 19, 2012 8:27 pm
Re: stripped marine screws
repspec wrote:slow drill speed and quality bits...you only want to try take the head off...and not drill it completley out. Once the head is gone, you should be able to pull the base off, then use vice grips to take the rest of the piece out.
Those screws will be into the bearers under the floor, not bolted, just drilled and tapped. Try get you hands on some "rost off" or siezed bolt remover spray and leave it soak.
You can sometimes use WD40 but it takes a lot longer.
Otherwise try use an impact driver...if there is a head left...
When you go to put the rest of them back in...use some grease on the threads to help for next time
If i was to drill the entire screw out is it possible to save the thread so i can put another screw in the hole? or will i need to helicoil etc?