Titanium Rear Shock Mount Hardware (4 Pieces) Altis SigmaCustom Altis Sigma rear shock upper and lower mount bolt kit. Replaces the undersized OEM hardware. Removes most of slack slop in rear shock mounting. Comes with two custom bolts and two lock nuts. Threads do not protrude into bushing which will allow less wear in the rear suspension. Designed to bring both strength and durability to a high stress area while giving your ride its own custom look. Anodized PVD coated to perfection Increased corrosion