Three identical M3 304 stainless steel nylon insert lock nuts on white

M3 304 Stainless Steel Nylon Insert Lock Nut

$0.20 NZD
each Save 15% at 25+
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Three identical M3 304 stainless steel nylon insert lock nuts on white
  • Three identical M3 304 stainless steel nylon insert lock nuts on white
  • Top view of an M3 stainless steel lock nut with white nylon insert
  • Side view of an M3 304 stainless steel nylon insert lock nut
  • M3 nylon insert lock nut dimensions including 0.5 mm pitch and width across flats
M3 304 Stainless Steel Nylon Insert Lock Nut
SKU: FST-NYLOC-M3-SS304

M3 304 Stainless Steel Nylon Insert Lock Nut

$0.20 NZD
Dispatch: Within 24 hours 7-day dispatch, excluding public holidays

NZ Post: 1-2 days urban · 2-4 days rural

Shipping from $5.99 urban / $9.99 rural.

Buy more, pay less Prices shown are per unit. Add enough of this item and the lower rate applies on its own at checkout. There is no code to enter and you do not need to buy a pack. Choosing a tier here just sets the quantity for you. Larger quantities go out in the same bag, so packing, handling and postage cost us less per unit. We pass that saving straight on to you, so you can buy more for less.

Minimum order quantity: 10

Easy 30-day returns · 12-month warranty

Free Urban delivery on orders over $66
Urban $66 Rural $88

A compact M3 x 0.5 mm nylon insert lock nut for fastenings that may see vibration or movement. The 304 stainless steel body provides useful corrosion resistance, while the captive nylon insert adds prevailing resistance after it engages the bolt thread.

Specifications

ThreadM3
Thread pitch0.5 mm
Material304 stainless steel
Locking featureCaptive nylon insert
Insert colourWhite to translucent light grey
FinishNatural silver
Overall height3.70 to 4.00 mm
Width across flats5.32 to 5.50 mm
Nominal tool size5.5 mm spanner or socket

Datasheets

Full technical datasheet PDF

What's in the box

1x
M3 304 stainless steel nylon insert lock nut

Sold individually with a minimum order quantity of 10. The cart quantity is the number of individual nuts.

Great for

Small equipment enclosures and brackets
Robotics and mechatronics assemblies
Fixtures exposed to vibration or repeated movement
General M3 workshop and repair stock

Fitting

  1. Confirm the thread

    Use with an M3 bolt or screw with a 0.5 mm coarse pitch.

  2. Start from the metal-thread side

    Engage the metal threads by hand before using a tool.

  3. Engage the nylon insert

    Thread far enough for the bolt to enter the nylon locking section, then tighten for the joint.

Note: Proof load, prevailing torque and a product-specific tightening torque are not published for this unbranded stock. Use the bolt and joint manufacturer's torque guidance where available.

Frequently Asked Questions

Answers to the questions buyers ask most.

Will this fit a standard M3 screw?
Yes, it is an M3 nut with the standard 0.5 mm coarse pitch. Check that your screw is also M3 x 0.5 mm.
Which side goes onto the bolt first?
Start from the metal-thread side. The bolt then enters the nylon insert, which creates the locking resistance.
How many nuts will I receive?
The product is sold per individual nut with a minimum quantity of 10. Your cart quantity is the number of nuts you will receive.
Can a nylon insert lock nut be reused?
Inspect it before reuse. Replace the nut if the threads or insert are damaged, the insert is loose or missing, or it no longer provides noticeable locking resistance.

Have a Question About This Product?

Send it through and we will get back to you by email.

Why Buy from NZN

Useful parts, fair prices and someone local to help.

I'm Lukas, an engineering student and maker based in Te Awamutu. NZN grew out of a CNC build that dragged on for months because every missing cable, bolt or electronic part meant another overseas order. I started the shop so Kiwi makers can spend more time building and less time waiting for the next parcel.

More about NZN Electronics

  • Stocked here in New Zealand

    Orders are picked and packed in Te Awamutu and dispatched within 24 hours every day, excluding public holidays. NZ Post target delivery is 1-2 days urban and 2-4 days rural.

  • Fair prices, clearly shown

    Prices are kept competitive and quantity discounts are shown upfront. Free delivery starts at $66 for urban addresses and $88 for rural addresses.

  • 30-day returns and 12-month warranty

    Get in touch if something is not right and we will help sort it.

  • Practical product support

    Ask a product question and get help from a real person in New Zealand who knows the range.

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