There are four simple steps to try initially:
1) Clean up the seized fastener... use a combination of degreasers, detergents, abrasives and wire brushes. This sets things up for the next step...
2) Search for the term "penetrating lubricant". These are specially formulated to squeeze into the small spaces in fastener threads. Use the lubricant liberally. Use wire brushes to work it in, further cleansing the area.
3) Try to rock the fastener in both directions... particularly effective if it starts to come undone then jams. Add more lube as you go... it should rock a little further each time until it frees up. if not...
4) If seized absolutely solid try a freeze and release spray... very effective and much safer than heat around delicate electrics, heater hoses, brake lines etc.
Chat with our AI personalities
If they are beyond repair, I cut them off with a thin metal cutting disc in an angle grinder.
Open the bolt and rack it back. Hold back the trigger. The bolt should slide easily backwards until it detaches from the rifle. If you have a rear sight that blocks the bolt from being removed, simply rotate the bolt handle clock-wise to get it passed the sight and remove as usual.
Undo the bolt
he diameter of the bolt.
1/2"x2" m.s bolt