t45 for seat belt bolts?

[3lud13]

I'm guessing rear seat belt bolts in a disco 1 are t45 to undo currently got a real stubborn one I can't undo.
Think I may have to go buy the proper tool. Can usually get them with vice grips but not this one

[dhc4ever]

Have you tried a pentrating oil and a sharp rap with a hammer?

[3lud13]

Have you tried a pentrating oil and a sharp rap with a hammer?

I think leaving the oil to penetrate for 24+ hours helped.
I did eventually got it off even without right tool as masters didnt have any.
Have since gone to the bolt shop and got replacement bolts with a standard bolt head