Model: Mustang Boss 302
Finish: None (heat treated bare steel)
Supplier: Dead Nuts On
Thread: 5/16 18
Socket size: 5/8"
Accuracy rating: 9
Best Repro Available: YES
This is the correct, unique, thin flat head bolt that is used on the water pump backing plate.
Note: 1970 Boss 302 water pumps used 4 to hold the backing plate to the water pump.
Install Notes: These unique backing plate bolts should be torqued 15 foot pounds.