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Nylon Daisy Hex Nut 6540-384 - Bubbles Supply

Nylon Daisy Hex Nut 6540-384

Part #: 6540-384

$1.54
In stock — ships today
Qty
🔒 Secure checkout↩️ 30-day returns✅ 1-year warranty
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1-year warrantySame-day ship before 3pm CTPerfect Fit Guarantee30-day returns

About this hardware/other

This Nylon Daisy Hex Nut (6540-384) is an original equipment replacement part designed for Sundance Spas systems. The 3/8-16 threaded hex nut features a distinctive daisy design and durable nylon construction that resists corrosion and wear in spa environments. This hardware component ensures secure fastening for various spa components while maintaining the reliability your Sundance system demands.

At Bubbles Supply, we guarantee this OEM part delivers an exact fit for your spa's specifications. Every Nylon Daisy Hex Nut ships the same day when ordered before our cutoff time and comes backed by our comprehensive 1-year warranty for complete peace of mind. When installing, ensure proper thread engagement and hand-tighten to avoid over-torquing the nylon material for optimal performance and longevity.

Exact part number

6540-384

Save this for ordering or warranty claims

Also known as / Replaces

This part replaces or is interchangeable with:

  • 3/8-16 nylon nut
  • Daisy nut
  • decorative hex nut
  • nylon hex nut

Looking for an older part number? Check our supersession lookup tool

Common symptoms this part fixes

If your spa is showing any of these signs, this part is likely your fix:

  • Loose or rattling spa panel or component
  • Missing fastener causing unsecured hardware
  • Corroded or cracked existing nylon nut
  • Thread-stripped nut no longer holding torque

Not sure if this is your problem? Try our diagnostic centre or .

Before you buy — quick checklist

  • Confirm your existing nut is 3/8-16 thread pitch before ordering
  • Verify the daisy profile matches your current hardware — the decorative flange pattern must seat correctly against your component
  • Inspect the mating bolt or stud for thread damage — a new nut won't hold on a damaged stud
  • Check quantity needed — order extras if multiple fasteners are being replaced in the same service call

Reading the checklist now prevents 90% of returns. Worth the 60 seconds.

Install difficulty: Easy — DIY-friendlyTypically 5-15 minutes

Warranty

1 year manufacturer warranty against defects

Covers manufacturing defects. Does not cover improper installation, normal wear, or accidental damage.

Warranty claims: warranty@bubblessupply.com

Perfect Fit Guarantee

Ordered with our help and the part doesn't fit? Contact us before installation. We'll resolve it with an exchange, replacement recommendation, or return approval.

Learn about our Perfect Fit Guarantee →

Shipping

We ship across the US and Canada. US orders ship from our US warehouse to US customers; Canadian orders ship from our Canadian warehouse to Canadian customers — no cross-border shipping, no surprise duties. In-stock orders placed before 3pm CT ship same day. Standard shipping $9.95 flat rate. Free shipping on orders over $200. Express options available at checkout.

Returns

30-day hassle-free returns on unused parts in original packaging. Contact us before returning to receive your RMA number.

Frequently asked questions

Check the Compatibility section above to confirm fitment for your spa brand and model. If your model is not listed, use our fitment selector at /pages/find-my-part or ask our parts AI for a personalized recommendation.

In-stock orders placed before 3pm CT ship the same day. You will receive tracking information by email as soon as your order ships.

We accept returns within 30 days of delivery for unused items in original packaging. Email returns@bubblessupply.com with your order number to start a return. Installed electrical parts cannot be returned for safety reasons.

Yes, all new parts come with a 1-year warranty against manufacturing defects. Warranty does not cover damage from improper installation or normal wear and tear.

Customer reviews

AI Fitment Assistant

Tell us your spa model and we will confirm this part fits before you buy.

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