Sprint Car Throttle Linkage Hardware Kit, 98 total pcs. Kit includes the following stainless steel socket heads in a compartmented plastic case: (12)- 10-32 x 1/2", (12)- 10-32 x 5/8", (12)- 10-32 x 3/4", (12)- 10-32 x 7/8", (50)- 10-32 Thin Locknuts.