crwdns2915892:0crwdne2915892:0
A flat sunk bolt with an Allan head was torn out, the hex key had no grip and the sunk bolt could not be grasped with pliers. It was a fat bolt so drilling out would have been very difficult.
crwdns2942213:0crwdne2942213:0
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Cut a slot into the screw head.
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Place a screwdriver in the slot and tap with a hammer in the counter-clockwise sense to loosen the bolt.
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Unscrew the bolt with the driver.
crwdns2952109:0crwdne2952109:0
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crwdns2935221:0crwdne2935221:0
crwdns2935229:046crwdne2935229:0
crwdns2947412:06crwdne2947412:0
Use the same technique for Philips or crosshead screws.
Use a grinding / cutting disk, not a saw blade. Apply the rotating cutting disk gently, do not force or it will break.
If this is a toughened steel or stainless steel bolt (much tougher), it will be best to use a reinforced cutting disk.
Use a dusk mask to avoid breathing the dusk from the disk !
(No, I don't usually, but I should !)
Frank B - crwdns2934203:0crwdne2934203:0 crwdns2950251:0crwdne2950251:0
While this works it is very difficult to not ruin the material around the bolt.
What I do is use a torx bit. size one up that is slightly larger then the hole and then firmly tap it in. atttach your drive handle a turn slowly while pushing down. this will normally break it free.
Also before your get to this point try putting your allen key in the hole and smack it with a hammer. sometimes the force of the hit will cause the metal to "break" enough that the allen screw wont strip.
Jamie Mcguire - crwdns2934203:0crwdne2934203:0 crwdns2950251:0crwdne2950251:0
There are also specifically designed screw extractors made for this. These tools are generally two-sided: one side is used to drill the hole, while the other is inserted to extract. If the process works, the surrounding area is undamaged.
Karl Kaufmann - crwdns2934203:0crwdne2934203:0 crwdns2950251:0crwdne2950251:0
Use another Allen bolt to weld over it and then you can easily remove the Allen bolt with the help of Allen key
Tushar Pednekar - crwdns2934203:0crwdne2934203:0 crwdns2950251:0crwdne2950251:0
And if for any reason if you can't weld then just drill the head of the Allen bolt so it's shears off. And then u can easily remove the rest
Tushar Pednekar - crwdns2934203:0crwdne2934203:0 crwdns2950251:0crwdne2950251:0
