These kits are made with stamped steel straps and supplied with grade 8 retaining bolts.
.312 - 24 fine thread grade 8 bolts;Includes 2 straps and 4 bolts;California Residents: WARNING Dana Spicer GM 3R U-Joint Strap Kit By Dana Spicer - 2-70-48x These hard to find Bolt And Strap kits are available for most common driveshaft U-Joint sizes are available from Dana Spicer will give you the piece of mind that your expensive driveshaft is correctly held in place.