Stainless Steel Wing/Butterfly Nuts M4 (4mm) Grade-304

A stainless steel (SS) wing nut is a durable, corrosion-resistant fastener featuring two metal “wings” or plates on opposite sides for easy, tool-free tightening and loosening by hand. Designed for frequent adjustments or disassembly, these nuts are commonly used in machinery, furniture, and marine applications.

Key Features and Description:
Material: Typically constructed from stainless steel (304, 316, or 18-8 grades) for superior strength, rust resistance, and durability, making them suitable for both indoor and outdoor, or corrosive environments.

Design: Feature two protruding, wide wings that provide a secure grip for thumb-and-finger turning.

Application: Ideal for assemblies requiring quick, frequent adjustments, or temporary setups, such as on machinery covers, scaffolding, and DIY projects.

Types: Available in various forms, including cold-forged, stamped, and stainless steel casting (e.g., DIN 315).

Versatility: Often used in, but not recommended for, high-vibration applications where they might loosen easily.

These nuts are also commonly known as butterfly nuts due to their wing-like appearance.