M3 aluminium flat head rivnut with knurled anti-spin body, angled view

M3 Aluminium Rivnut Flat Head Threaded Insert Rivet Nut (Nutsert)

M3
$0.62 NZD
Skip to product information

M3 Aluminium Rivnut Flat Head Threaded Insert Rivet Nut (Nutsert)

$0.62 NZD
Rated 4.9/5 by 19 NZN customers Verified

Shipping from $5.99 urban / $9.99 rural.

SizeM3
Buy more, pay less Save up to 30%

Unit price applies automatically in your cart.

Availability:

Minimum order quantity: 10

American Express Apple Pay Google Pay Mastercard PayPal Shop Pay Union Pay Visa

Easy 30-day returns · 12-month warranty

Free Urban delivery on orders over $66.00

Urban $66 Rural $88

An M3 aluminium rivnut, also known as a threaded insert, rivet nut or nutsert. It gives you a strong M3 machine-thread in thin sheet, tube or panel where you cannot reach the back to hold a normal nut. You set it from one side with a rivnut tool, and the knurled body grips the hole so it will not spin. The flat head sits neatly against the surface. Aluminium keeps it light and rust free, and it is easy to set with hand tools.


  • M3 thread, ready for standard bolts and screws
  • Aluminium alloy, light and corrosion resistant
  • Flat head sits flush against the panel
  • Knurled body resists spinning once set
  • Blind fixing, only needs access to one side
  • Suits panels roughly 0.5mm to 3.0mm thick
  • Great for thin metal, plastic and tube
  • More thread sizes coming soon

Specifications

Thread sizeM3 (M3 x 0.5)
MaterialAluminium alloy
Head styleFlat head (small flange)
BodyKnurled, anti-spin
Body diameter4.5mm
Length9mm
Mounting hole5.0mm drill
Grip rangeAbout 0.5mm to 3.0mm

What's in the box

10+
M3 aluminium flat head rivnuts

Priced per rivnut with a minimum order of 10. Set your quantity at checkout, and bulk pricing kicks in as you add more.

Great for

Adding threads to thin sheet metal
Tube, box section and hollow frames
Car, motorbike and 4WD panel work
Enclosures, brackets and covers
3D printer and CNC frame builds
Any spot where you cannot reach the back

How to set a rivnut

  1. Drill the hole

    Make a clean 5.0mm hole in your panel and clear any burrs.

  2. Load the tool

    Wind the rivnut onto the mandrel of your rivnut or nutsert tool until the head sits flat.

  3. Insert into the hole

    Push the rivnut into the hole so the flat head rests against the surface.

  4. Squeeze to set

    Work the tool to compress the body. It bulges out behind the panel and locks in place, leaving you a clean M3 thread.

Common questions

What size hole do I drill?

A 5.0mm hole suits the 4.5mm knurled body with a little clearance. Keep it snug so the knurls bite and stop the rivnut turning.

Do I need a special tool?

Yes, a rivnut or nutsert setting tool does the job cleanly. In a pinch you can set one with a bolt, a nut and a couple of washers, but a proper tool is faster and more reliable for a batch.

Aluminium or steel, which should I pick?

Aluminium is lighter, will not rust and sets easily with hand tools, so it is ideal for thin sheet, plastic and general work. Choose a steel rivnut when you need maximum thread strength or high clamping loads.

How thick a panel can it clamp?

This M3 size grips material from about 0.5mm up to around 3.0mm thick. For thicker work you would step up to a longer body or larger thread.

Will it spin in the hole?

The knurled body is made to dig into the edge of the hole as it sets, which stops it spinning when you tighten a bolt into it.

Good to know: This listing is the M3 aluminium size, sold per rivnut with a minimum order of 10. More thread sizes are on the way. Shipped fast from our own stock here in New Zealand.

Why buy from NZN

International prices. None of the international wait.

We're a small Kiwi-owned shop, and we stock the same boards and parts you'd usually order from overseas, for about the same price. The only real difference is they ship from Te Awamutu, so you get them in a few days instead of waiting weeks.

Run by Kiwis, here in Te Awamutu

We're NZ owned and operated, and every order is picked, packed and sent from our place in Te Awamutu, Waikato.

Get it in days, not weeks

Order before 12pm and it ships the same day. No waiting three to six weeks for a parcel to crawl over from overseas.

Low prices are the goal

As a maker myself, I want New Zealand to have a genuine low-price local option for electronics, not overpriced shelves or a long wait on an international parcel.

Checked, and easy to sort if it's not right

We test things before they go out, and if something's off you've got 30 day returns, a 12 month warranty and a real person in NZ to email.

Packed and sent by a fellow maker, right here in Te Awamutu.

You may also like