304 SS Hex Flange Nuts M3–M8 Anti-Loosening Serrated

$26.73 $30.22

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304 Stainless Steel Hex Flange Nuts — Serrated Anti-Loosening Design (M3, M4, M5, M6, M8)

Keep your assemblies tight and secure with these 304 stainless steel hex flange nuts. Featuring a built-in serrated (flower-tooth) flange base, these nuts grip surfaces firmly to resist vibration-induced loosening — making them ideal for woodworking projects, machinery, automotive applications, and general DIY fastening tasks.

Available in a convenient pack of 1–50 pieces and multiple thread sizes (M3, M4, M5, M6, M8), these nuts offer flexibility whether you need just a few for a quick fix or a larger supply for a bigger build.

Key Features

Material: Premium 304 stainless steel — corrosion-resistant, durable, and long-lasting
Serrated Flange Design: Built-in toothed base bites into the mating surface to prevent slipping and loosening under load or vibration
Thread Sizes Available: M3, M4, M5, M6, M8 — versatile for a wide range of fastening applications
Strength Grade: 6.8 level — reliable holding power for everyday and professional use
Surface Treatment: Oxidation treatment for added surface protection and finish quality
Quantity Options: Choose from 1 to 50 pieces to match your project needs
Application: Woodworking, DIY projects, machinery assembly, automotive, electronics enclosures, and more

Specifications

Material	304 Stainless Steel
Type	Hex Flange Nut (Serrated / Flower Tooth)
Thread Sizes	M3, M4, M5, M6, M8
Strength Grade	6.8
Surface Treatment	Oxidation Treatment
Pack Size	1–50 Pieces
Country of Origin	Made in China

Perfect For

Woodworking and furniture assembly
Home DIY repairs and installations
Automotive and mechanical work
Electronic enclosure assembly
Industrial and machinery fastening

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Frequently Asked Questions

Q: What sizes of hex flange nuts are available?

A: These 304 stainless steel hex flange nuts are available in M3, M4, M5, M6, and M8 thread sizes, making them suitable for a wide variety of fastening and assembly applications.

Q: How does the serrated flange design prevent loosening?

A: The serrated (flower-tooth) flange base features small teeth that dig into the surface of the mating material when tightened. This mechanical grip resists rotation caused by vibration or dynamic loads, keeping the nut firmly in place without the need for additional lock washers.

Q: Are these nuts suitable for outdoor or damp environments?

A: Yes. Made from 304 stainless steel with an oxidation treatment surface finish, these hex flange nuts offer good corrosion resistance, making them well-suited for both indoor and moderately damp outdoor environments.

Q: Can I use these for woodworking projects?

A: Absolutely. These nuts are listed as suitable for woodworking DIY applications. The flange base helps distribute load across a wider surface area, which is especially useful when fastening into wood or softer materials.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.

We prioritize quality in selecting the materials for our items, choosing premium fabrics and finishings that ensure durability, comfort, and timeless appeal.

We strive to process and ship all orders in a timely manner, working diligently to ensure that your items are on their way to you as soon as possible.