4 Pack 1/2‑20 Wheel Studs & Lug Nuts 1-633926 1-613150 E633926, 12.9 Grade Alloy Steel Replacement Fits Toro Lazer Z Z‑Master, Exmark Lazer Z Zero‑Turn Lawn Mower

HELINCH 4-Pack 1/2-20 Wheel Stud and Lug Nut Kit (Replaces OEM# 1-633926, 1-613150, E633926,1633926) If you are looking for heavy-duty replacement wheel hardware for your zero-turn lawn mower, our 12.9-grade alloy-steel wheel-stud kit is the ideal direct-aftermarket part to replace rusted, stripped-thread or broken original wheel studs. Wide Compatibility List: 1. Toro Lazer-Z Series: AC, AS, CT, HP, LC, XP, XS, Turf, Tracer DS, S, X, Z 2. Toro Z-Master Series: Z257,Z283L,Z286E,Z287L,Z288E,Z400,Z441,Z449,Z450,Z453,Z500,Z528,Z550,Z553,Z557,Z558,Z560,Z580,Z587L,Z588E,Z589,Z590-D,Z593-D,Z595-D,Z597-D, Professional 6000 & 7000 3. Exmark Lazer-Z Series: Air-Cooled, AS, CT, HP, Liquid-Cooled, XP, XS, XS-Diesel, replaces factory-part 103-0590 Important Purchase Reminder: This wheel-fastener set does NOT fit lawn-mowers equipped with Hydro-Gear transaxle hub, Toro 77282 and Exmark radius-style lawn-mower. Kindly compare the dimension of your original wheel-stud before ordering. Industrial-Grade Durability: Hardened 12.9-grade alloy-steel delivers powerful tensile strength. The precisely-rolled 1/2-20 threads tolerate repeated wheel disassembly without stripping. The knurl-in section tightly grips the wheel-hub hole and stops the wheel-stud from spinning freely. Solve Common Wheel-Hub Faults: Worn-out wheel-studs will trigger wheel shaking, excessive vibration and the potential risk of wheel-loss. Once our full set of wheel studs and lug nuts are installed, your mower wheels will stay firmly fastened during all yard-mowing work. Ready-to-install, no cutting, drilling or modification needed. One kit comes with 4 wheel studs plus 4 matched lug nuts. Backed by our 1-year limited-time quality warranty.

• Direct-fit OEM-standard wheel studs and lug nuts, interchangeable with OEM part-number 1-633926, 1-613150, E633926 and 1633926
• Fits Wide Compatibility List: 1.Toro Lazer-Z Series:AC, AS, CT, HP, LC, XP, XS, Turf, Tracer DS, S, X, Z 2.Toro Z-Master Series: Z257,Z283L,Z286E,Z287L,Z288E,Z400,Z441,Z449,Z450,Z453,Z500,Z528,Z550,Z553,Z557,Z558,Z560,Z580,Z587L,Z588E,Z589,Z590-D,Z593-D,Z595-D,Z597-D, Professional 6000 & 7000 3.Exmark Lazer-Z Series: Air-Cooled, AS, CT, HP, Liquid-Cooled, XP, XS, XS-Diesel, replaces factory-part 103-0590.No modification required. Not compatible with Hydro-Gear transaxle hub, Toro 77282 and Exmark radius-series lawn mower.
• Thread Specification: 1/2-20; Under-head Length:1.756 in (44.6 mm); Knurl Diameter:0.54 in (13.7 mm). Precision knurl design locks firmly in wheel-hub to prevent spinning-stud failure.
• Made of heavy-duty Class-12.9 hardened alloy steel. Excellent tensile strength resists shearing, rust, deformation and thread-stripping under long-time vibration from zero-turn mowing.
• Package contains 4 wheel studs and 4 matched lug nuts. One complete kit supplies enough wheel fasteners for your lawn-mower hub maintenance.
• Every stud and nut goes through factory inspection for hardness and thread tolerance. We offer 1-year warranty on manufacturing defects. Contact our support team if you encounter fit-ment or quality-related troubles.