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Stainless steel 304 is widely selected for industrial fasteners that require general resistance to atmospheric moisture and routine handling. For a wing nut, the material applies to both the threaded body and its manually operated wings, subject to final product confirmation.
The grade may be considered for:
indoor production equipment;
humid workshops;
food-service or cleanable equipment where the complete design permits;
outdoor equipment under moderate exposure;
furniture, displays and architectural fittings;
general commercial and light industrial assemblies.
Material grade alone does not determine service life. Surface contamination, crevices, cleaning agents, temperature and contact with dissimilar metals can affect corrosion behavior.
Before ordering, evaluate:
Is the assembly indoors, outdoors or in a sheltered outdoor location?
Will the part contact saltwater, de-icing salt or chloride cleaners?
Is the nut exposed to acids, alkalis or process chemicals?
Will the nut contact carbon steel, aluminum or another metal?
Is routine cleaning or sterilization required?
Will the part be reused frequently?
Is appearance important after repeated hand contact?
For aggressive marine or chemical exposure, do not assume that 304 stainless steel is sufficient. Submit the environmental information for material review.
Two wings extend from the nut body and provide leverage for manual tightening and loosening.
The central threaded bore must match the mating fastener in diameter, pitch and tolerance. These details are essential RFQ fields.
The listing identifies DIN 315 as the dimensional standard. The applicable type, dimensional edition and inspection criteria should be stated in the purchase order.
Specification | Status |
|---|---|
Product | Wing Nut / Butterfly Nut |
Standard | DIN 315 |
Material | Stainless Steel 304 |
Manual wing structure | Confirmed |
Thread diameter and pitch | Order-specific; confirm before production |
Surface treatment | Not assumed; confirm before production |
Passivation or polishing | Not assumed; specify if required |
Corrosion test requirement | Not assumed; specify method and acceptance criteria |
Packaging | Confirm with RFQ |
removable stainless equipment panels;
adjustable brackets;
inspection covers;
modular display and furniture systems;
laboratory and workshop fixtures;
light-duty outdoor assemblies under evaluated conditions;
components that require periodic manual release.
Keep threads clean before installation.
Match the wing nut to the correct bolt or stud thread.
Start the thread by hand to avoid cross-threading.
Apply balanced pressure to both wings.
Avoid striking the wings or using pliers unless specifically approved.
Inspect for bent wings, damaged threads or contamination before reuse.
No. Stainless steel offers corrosion resistance, not absolute immunity. Chlorides, contamination and poor drainage can still cause corrosion.
The exact surface condition is not confirmed by the product title. Specify the required finish during inquiry.
Suitability depends on chloride concentration, exposure time and maintenance. A project-specific material assessment is recommended.
Any alternative material must be reviewed and confirmed during quotation; it should not be assumed from the standard designation.
For an accurate offer, provide the thread specification, environment, quantity, surface requirement and any test criteria through the contact page. Reference the verified Stainless Steel 304 Butterfly Nut Wing Nuts DIN 315 listing.
