What kind of work were you doing? Those are really rusty so they were someplace water got too. They could be bolting to the block and securing the lines to it??
Yep, we carry them at my store. They are nothing special, a 8 mm bolt by 1.25 pitch. Bring an old one to match up the length though. Ghettostyle's car came with one snapped off on each side.
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97 Viper GTS
03 Mercedes CLK500 rollin on dubs...