Osculati A2 AISI 304 Stainless Steel Wing Nuts DIN 315 / UNI 5448, M4–M12

Osculati A2 AISI 304 Stainless Steel Wing Nuts DIN 315 / UNI 5448

Osculati wing nuts are manufactured from A2 (AISI 304) stainless steel and are listed according to DIN 315 / UNI 5448. These hand-operated fastening components feature two projecting wings and an internally threaded central body for use with compatible metric bolts, machine screws and threaded rods.

The two-wing design allows the nut to be tightened or loosened by hand, without requiring a wrench or socket. This makes wing nuts particularly useful for fittings that need periodic adjustment, removal or repositioning.

Unlike standard hexagon nuts, which are generally tightened with a wrench, wing nuts provide an accessible manual grip. They are suited to applications where tool-free operation is desirable and where the required tightening force can be achieved manually.

The internal metric thread must match the diameter and pitch of the corresponding threaded fastener. The winged body is designed for repeated manual operation, although the suitability of the assembly depends on the required clamping force and operating conditions.

A2 (AISI 304) stainless steel provides corrosion resistance for general indoor, outdoor and suitable marine applications. For installations exposed to continuous saltwater contact or high chloride concentrations, the suitability of the material should be assessed.

The range includes six nominal metric thread sizes: M4, M5, M6, M8, M10 and M12. Each version has an individual Osculati part number and is supplied in a cardboard box containing 10 or 25 nuts, depending on the selected size.

Technical Specifications

Features and Applications

• Manufactured from A2 (AISI 304) stainless steel.
• DIN 315 / UNI 5448 wing nut construction.
• Two projecting wings provide a convenient grip for manual operation.
• Can be tightened and loosened without a wrench or socket.
• Internal metric thread for compatible bolts, screws and threaded rods.
• Suitable for adjustable fittings, removable covers, mounting brackets and other components requiring periodic access.
• Available in six nominal thread sizes from M4 to M12.
• Supplied in cardboard boxes containing 10 or 25 nuts.

Available Sizes and Part Numbers

Size Selection

Select the nominal metric thread size according to the bolt, machine screw or threaded rod used in the assembly. Ensure that the thread diameter and pitch are compatible and that adequate clearance is available around the wings for manual operation.

Each size has a fixed box quantity, as listed above. Exact thread pitch, wing dimensions and mechanical strength class are not specified in the supplied catalogue information.