We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Black carbon steel hex flange nuts in a plastic box, 136 pieces M3 to M10

Aienxn 136PCS Metric Hex Flange Nuts Assortment Kit M3-M10

SKU CH-DKJ9-WPP1E

A 136-piece carbon steel hex flange nut assortment in six metric sizes from M3 to M10, zinc plated and packed in a plastic box

  • Fit and compatibilityQ-099, Aienxn
  • Main materialSteel
  • Sold asKit
  • Number of items12 pack
  • Carbon steel construction with zinc plating resists corrosion for longer service life
  • Integrated flange distributes load evenly so fasteners stay tight under vibration
  • Six metric sizes from M3 to M10 in one kit cover the most common repair needs
  • 136 pieces pre-sorted in a plastic box keep the workshop organised and speed up selection
  • Reusable design allows repeated installation and removal without thread damage

Metric Hex Flange Nuts Kit

The Aienxn kit contains 136 hex flange nuts in six metric sizes from M3 to M10. Made of carbon steel with zinc plating, the nuts resist slipping and can be reused. They come organised in a plastic box for workshop or home storage.

Suits general repairs not stainless needs

Mechanics and DIYers who need a ready supply of common metric flange nuts will find the assortment practical. Buyers who require corrosion-resistant stainless fasteners or larger diameters should look elsewhere.

Carbon steel with zinc plating

The nuts are manufactured from carbon steel and zinc plated for basic corrosion protection. This material choice determines whether the kit matches the strength and environment requirements of the job.

How it compares

Measured against everything we stock in Workshop Hardware, Springs & Clamps, at today’s prices. Recalculated every night.

Price $15.99
Cheaper than about 60% of the 383 comparable items (median $17.99).

Specifications

Product
Brand nameAienxn
Part numberQ-099
Size & build
Main materialSteel
Compatibility
Fit and compatibilityQ-099, Aienxn
In the box
Number of items12 pack

Questions about this item

What thread sizes do the 136 hex flange nuts cover so I can match my existing bolts?

The kit includes six metric sizes — M3, M4, M5, M6, M8 and M10 — so you can match the most common bolt threads in one box.

Will the zinc-plated carbon steel nuts gall or corrode when used with stainless-steel washers I already own?

Zinc-plated carbon steel works with stainless washers, but the mixed metals can accelerate corrosion in wet or salty environments; use a dielectric paste or matching steel washers for long life.

How can I confirm each nut seats correctly after installation?

The integrated flange should sit flat against the mating surface without wobble, and the nut should turn smoothly by hand before final torque — any binding or tilt means the threads or hole need cleaning.

More in Workshop Hardware, Springs & Clamps

Similar items