S&S CYCLE Cylinder Stud & Head Bolt Kit - 8 Pack - '17-'23 M8 Models 900-1176

Cylinder Stud & Head Bolt Kit - 8 Pack - '17-'23 M8 Models Studs, 4140 Chrome Moly studs, oil quenched and tempered to 39-44 HRC, Rounded thread roots, rather than flat, improving fatigue strength, Positive stop shoulder allows for consistent installed height, 180,000 psi tensile strength, Head Bolts, Reusable, 14% increase in strength over stock, Heat treated 8640 steel, 200,000 psi ultimate tensile strength, 9/16" 12 point head with integral washer, Formed threads, Cold formed head, Compatible with both MLS & graphite head gaskets