[Loose Screw]

Originally Posted by Cali72K20

I had the same issue with an Edelbrock bolt kit, I have the Craftsman version of this:

Powerbuilt 3/8-Inch Drive Universal Socket Set, 7 Piece, Fits SAE and Metric, Size Markings - 642054

HF has them too:

https://www.harborfreight.com/7-piec...set-96809.html

Damn......and going down the primrose internet path I see where Home Depot is calling something similar a "Knurl Grip" socket...

I'll go with "Spline"!...from Amazon...15 bucks....Harbor Freight a little to big, but I'll look at them anyway.....