Egon
Epic Contributor
Button head grease fittings may work with high pressure.
[video]https://www.google.ca/search?q=high+pressure+grease+fittings&client=safari&hl=en-ca&prmd=isvn&source=lnms&tbm=isch&sa=X&ved=0ahUKEwicqO62xqbRAhVm1oMKHc2CD3oQ_AUIBygB&biw=1024&bih=648#imgrc=ODhMqaeBSeub-M%3A[/video]
[video]https://www.google.ca/search?q=high+pressure+grease+fittings&client=safari&hl=en-ca&prmd=isvn&source=lnms&tbm=isch&sa=X&ved=0ahUKEwicqO62xqbRAhVm1oMKHc2CD3oQ_AUIBygB&biw=1024&bih=648#imgrc=ODhMqaeBSeub-M%3A[/video]