Black Headbolt Kit for M8 39mm Bolstered shoulder and base resist

Bolstered shoulder and base resist bulging when pressurized

A: The locking ring design keeps both halves securely together

This kit uses dedicated fluids for each system instead of a universal oil

1998 - FXSTC Softail Custom

Black Headbolt Kit for M8 39mm Bolstered shoulder and base resistS&S Black Oxide Headbolt Kit for M8 Made from heat treated 8640 steel 200,000 psi ultimate tensile strength Stronger than the stock bolts Durable black oxide coating Formed threads Cold formed 9 16" 12 point head with integral washer Reusable Sold as a set of 8 Find more ARP bolts Hardware kits for your Harley HERE. Fits: 2020 2021 Harley Davidson Softail Standard FXST 2020 2021 Harley Davidson Softail Low Rider S FXLRS 2020 2021 Harley Davidson Road