Fitment: Vehicles with wheel lug nuts requiring a 14-1.5 thread(8 lugs) and take a flat/mag seat, compatiable with 2017-2022 F-ord F250 & F350, oem number is HCPZ-1012-B, HCPZ-1012-A please check the seat type of your original lug nuts firstly before placing your Order | Specification: Thread pitch M14X1.5, Overall tall 1.9"(48.5mm), Diameter 1.24"(31.5mm), Closed end, flat/mag seat, separated and protected in pearl cotton box (handwrench recommended, don't use the impact tool) | Performance: One-piece structure design, better than original "cap" style (two piece design) which is more safer while you are installing the lug nuts, high standward QC/QA control, all of our products past 72 hours salt spray tested which can promise a longer service life compared to 48 hours for others | Premium Material: Cold Forged Alloy Steel(High Strength and Durability), quality durable surface dealing process, clear and clean pitch thread. Chrome plated can greatly improves rust&corrosion resistance and prevent the outer layer peeling easily | Brand Promise: We hope that dynofit can make your shopping experience enjoyable. Feel free to contact us if you have any problems(missing parts, quality issues, transportation and more)