Titan Alloy Square Link Tractor Tire Chains Ice Snow Mud 10mm 8.3-24. Size based on NACM Specifications. How many tires does this cover?Best for R3 & R4 Series Tread. 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.