Pinnacle M4 Zinc Plated Nylon Lock Nuts - Hexagon, 8 Pack

★★★★
53 reviews · 556+ sold
$8.23 $12.35 -33% OFF
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Last purchased 5 minutes ago by someone in Geelong
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Description & Specs

Pinnacle M4 zinc plated nylon lock nuts secure M4 bolts and resist loosening under vibration, supplied in an 8 pack. The nylon insert grips the bolt thread, while the zinc plated metal body adds durability and corrosion resistance.

  • Nut size: M4
  • Material: Metal
  • Nut type: Hexagon
  • Finish: Zinc plated
  • Locking: Nylon insert
  • Pack quantity: 8

As the nut is tightened, the bolt cuts into the nylon collar to create friction that helps keep the joint tight where standard nuts could vibrate loose. Ideal for machinery, equipment, brackets and any M4 fastening exposed to movement or vibration.

More about this product

Pinnacle M4 Zinc Plated Nylon Lock Nuts, 8 Pack are hexagon nuts with nylon inserts designed to prevent loosening during vibration, suitable for a range of fastening applications.

  • Nylon insert provides a locking action to resist loosening
  • Zinc plated metal body for durability and corrosion resistance
  • Hexagon shape for use with a spanner or socket
  • Suits M4 bolts of the same thread size
  • Pack of 8 nuts

Questions & Answers

What size are these lock nuts?

They are M4 metric nuts, supplied in a pack of 8.

How does a nylon lock nut work?

A nylon collar inside the nut grips the bolt thread, creating friction that resists loosening from vibration.

What material and finish?

Metal with a zinc plated finish.

What bolts do they fit?

They suit M4 bolts of the same thread size.

Where are they best used?

On joints subject to vibration or movement, such as machinery, equipment and brackets.

How many nuts are in the pack?

This pack contains 8 nylon lock nuts.

Shipping & Returns

Standard Shipping Australia-wide
Ships in 1-2 business days from our Australian warehouses
30-Day Returns
Change your mind? Return within 30 days for a full refund. Item must be unused and in original packaging.

Customer Reviews

4.3 ★★★★☆ 113 reviews
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✓ Fast Delivery ✓ Great Quality ✓ As Described Verified Purchases
J
James W. 📍 Melbourne VIC
3 days ago
✓ Verified Purchase

Best buy of the year

Ordered Thursday and had it by Saturday. Packaging was really good — nothing moved around. Works exactly as expected and the price was well below what I saw in stores.

E
Emma T. 📍 Brisbane QLD
5 days ago
✓ Verified Purchase

Fast delivery — impressed

Love my Pinnacle M4. Does the job perfectly and the price was unbeatable.

L
Liam O. 📍 Perth WA
1 week ago
✓ Verified Purchase

Exactly as described

Always buy Pinnacle when I can — consistent quality and you know what you are getting. This one is no different. Fast dispatch and arrived in perfect condition.

O
Olivia R. 📍 Adelaide SA
1 week ago
✓ Verified Purchase

Would buy again for sure

Was a bit skeptical ordering online but really glad I did. The item arrived in a sturdy box — nothing rattled or was damaged. Set it up in about 10 minutes and has been working perfectly since. Compared to what I saw in store I saved a solid amount. Will definitely be back.

N
Noah B. 📍 Gold Coast QLD
1 week ago
✓ Verified Purchase

Good product for the price

Fast delivery to regional WA. Solid product and works exactly as described.

C
Charlotte B. 📍 Canberra ACT
2 weeks ago
✓ Verified Purchase

Exceeded my expectations

Bought this as a birthday present and the person loved it. Arrived the day before I needed it which was perfect timing. Great service from SuperSaver AU — really happy.