Secure your mechanical, automotive, and DIY projects with this comprehensive 225-piece serrated hex flange nut assortment kit. Designed with built-in serrated locking teeth on the bottom face, these flanged lock nuts effectively resist loosening caused by movement, vibration, or heavy dynamic loads. The integrated flange acts like an attached washer, spreading pressure evenly across connected surfaces to prevent damage and eliminate the need for extra flat washers. Crafted from high-strength carbon steel, this multi-size set (M3 to M12) is ideal for construction, machinery assembly, furniture building, and vehicle repairs.

Key Features

• 🔩 Complete 225-Piece Assortment: Includes 7 essential thread sizes—M3, M4, M5, M6, M8, M10, and M12—for a wide range of fastening tasks.

• ⚙️ Serrated Anti-Loosening Design: Features integrated locking teeth that bite into the surface to prevent the nut from backing off under heavy vibration.

• 🛡️ Integrated Flange Base: Acts as a built-in washer to distribute load pressure evenly, protecting underlying materials and reducing wear.

• 🛠️ Durable Carbon Steel: High-strength construction offers long-lasting durability and stability for both home maintenance and industrial applications.

• 🧰 Organized Storage Box: Comes in a compact compartment case (17.5 x 10 x 2.2 cm) for clean organization, easy identification, and portability.

Specification

• Fastener Type: Serrated Hex Flange Nut

• Thread Sizes Included: M3, M4, M5, M6, M8, M10, M12

• Thread Direction: Right Hand

• Material: Carbon Steel

• Finish: Unfinished

• Box Dimensions: 17.5 x 10 x 2.2 cm

• Quantity: 225-Pcs Set

Package Include

• 225 x Serrated Hex Flange Nuts (Assorted M3–M12 Sizes)

• 1 x Compartment Storage Case