Black M5 x .8 x 15mm rubber well nut by Fast Turn Fittings

Vendor:Fast Turn Fittings

M5 x .8 x 15mm Rubber Well Nut

$0.88

The M5 x .8 x 15mm Rubber Well Nut is designed to fasten components in tight or hard-to-reach spaces by compressing securely when an M5 bolt is screwed in. It fits through a 9.5mm (3/8 inch) hole and is compatible with standard M5 bolts.

  • Fits 9.5mm (3/8 inch) holes
  • Compatible with M5 bolts
  • Compression fastening mechanism
  • Black rubber and metal construction
  • Ideal for DIY and repair projects requiring secure fastening in confined spaces
Color
Color: Black

Secure fastening in confined spaces

Why Choose M5 x .8 x 15mm Rubber Well Nut

Exact Details and Fit

Product Specifications

Brand or supplier
Fast Turn Fittings
Product type
Individual Hardware
Material
Rubber and metal components.
Dimensions/options
Fits 9.5mm (3/8 inch) holes; compatible with M5 bolts.
Color/finish
Black

What arrives

One M5 x .8 x 15mm Rubber Well Nut in the selected option unless the product page clearly lists a set or kit. Props and styling accessories shown in photos are not included.

Hole and Bolt Compatibility

Size and Compatibility

Insert through a 9.5mm hole, then screw in an M5 bolt to compress and secure.

Fits 9.5mm (3/8 inch) holes; compatible with M5 bolts

Compatible only with matching thread sizes, holes, washers, nuts, bolts, and materials. Do not substitute fasteners where strength, safety, or corrosion resistance is critical without checking the spec.

Always follow the manufacturer's care, use, and safety guidance.

Shipping and Returns

Order and Delivery Information

Shipping

Shipping rates and estimated delivery times are shown at checkout.

Returns

Return requests are accepted within 30 days of delivery. Contact Resin Society first for damaged, defective, incorrect, or missing items and we will coordinate directly with Fast Turn Fittings.
Black M5 x .8 x 15mm rubber well nut by Fast Turn Fittings

Small part, quiet certainty

A discreet black well nut that disappears into the work and holds the line.

Held from within

The neat answer in tight spaces

A tidy fix

Loose panels, rattling fixtures, and tight corners can stall a project. The M5 x .8 x 15mm Rubber Well Nut slips into a 9.5mm (3/8 inch) hole and cinches from the inside, bringing calm to cramped spaces. With a light hand—5 lb-IN of torque—it seats securely without fuss.

Quiet, firm, done

Homes and studios are built on the unseen choices that keep things steady. This simple, compact fastener makes clean work where a traditional nut won’t reach, so surfaces stay uninterrupted and hardware stays put. It’s the kind of detail you never notice—because it doesn’t let go.

For the careful finisher

Builders and tinkerers who choose precise hardware for neat, accessible assemblies in confined spots.

Where it lives

Insert through a 9.5mm (3/8 inch) hole and tighten an M5 bolt to secure components in hard-to-reach areas.
  • Shop builds
  • Woodworking hardware
  • Fabrication
  • Repairs
  • Corrosion-conscious assemblies
Fast Turn Fittings brand cover

Maker Spotlight

Fast Turn Fittings

Fast Turn Fittings grew from enthusiasts who wanted better, right-fit hardware for their builds. The brand specializes in vehicle-specific titanium kits for 500+ applications and individual fasteners in sizes M4 through M12. Each fastener is made from aerospace-grade titanium or zinc-coated stainless steel, and every kit is hand-verified against its spec sheet before shipping. Fast Turn pairs that materials and fitment focus with fulfillment and warranty practices meant to match the product quality. For makers and builders, these small-format, precision fasteners are the finishing detail that keeps a project looking and performing like the work it was meant to be.
Explore Fast Turn Fittings
93trees planted to date

Your order gives back

When you buy from Resin Society, you help plant trees through our reforestation partnership. It is a small way your order supports the materials, homes, and landscapes makers care about.

Common Questions

FAQs Specific to M5 x .8 x 15mm Rubber Well Nut

What size bolt works with this well nut?
It’s compatible with M5 hardware.
What hole size do I need to install it?
Use a 9.5mm (3/8 inch) hole.
How much should I tighten it?
Tighten to about 5 lb-IN of torque.
What is the overall length of the well nut?
It is 15mm long.
Can I pair it with titanium M5 bolts?
Yes, it works with M5 hardware, including titanium options linked in the listing.