A stainless steel hex starter bolt kit specified for GM applications, identified by its 3/8 x 4.400 inch dimensions in the listing. This ARP starter bolt kit is presented as the correct sized hex fastener solution for GM starter mounting where a 3/8 by 4.400 inch stainless steel hex bolt is required.
ARP GM 3/8 X 4.400in Hex SS Starter Bolt Kit