The kit consists of five stainless hexagon socket reduced cap head screws #10-24 x 5/8" long and plain washers form 'A' washers for the Derby Cover. Two stainless socket reduced cap head screws #8-32 x 1/2" long and plain washers are for the Timing Cover.
The Stainless Derby Cover, Timing Cover screws would be best suited in high-performance racing cars.