Titan Truck Alloy Square Link Tire Chains CAM On Road IceSnow 7mm 285/65-18. Size based on NACM Specifications. Ladder Alloy Square Link CAM Type. How many tires does this cover?This tire chain set may need some fitment adjustment since tire chain manufactures make their chains fit more than one tire size and they could be slightly long and may need the side chain shortened. Gaskets / Sets & Seals.