perno flangia set di 4 flange flangia a due fori 1 5 8 1 1 8 dia

specification 1. set 2 hole pins 1 1 8 diameter, work with bolts holes recommended 3 8 to 1.0 . 2. set 2 hole pins 1 5 8 diameter, work with 1 2 to 1 1 2 bolt holes up to 3 thickness of flange. notice no instruction will be included,professional installation and alignment is suggested. please feel f