1/2 inch (approximately 0.5 cm)-20. Hexagonal dimensions: 3/4 inches (19 mm), Width: 0.91 inches (23 mm), Height: 1.38 inches (35 mm). Seat type: 60 conical seat. Durable. Made from special alloy steel (carbon steel), the integrated flange nut is manufactured using a cold forging process to increase hardness. The chrome-plated surface is rust-resistant and corrosion-resistant, tested through a 72-hour salt spray test. Precision threads are machined for accurate fit on wheel bolts, ensuring reliable performance and easy installation. Replacement 1/2 x 20 lug nuts are suitable for aluminum or steel wheels. Compatible with most Ford models. Please confirm your vehicle's stud thread size and seat type before purchasing. Use a manual torque wrench (not electric). Recommended torque: 75-85 ft-lbs. Color: B:Silver/A:Black. Material: Carbon Steel. Package Contents: 20 pcs x Lug Nut. Only the above package content is included; other items are not part of this offer. Note: Lighting and display differences may cause slight color variations between the image and actual item. Measurement error allowance: +/- 1-3 cm.