Attributes

Brand	-
Category	Industrial Small Parts / Connectors and Fasteners
Origin	-
Material	Carbon Steel
Strength Grade	8.8
Surface Finish	Black Oxide Coated
Thread Standard	ISO Metric Coarse
Nut Shape	Hexagonal
Kit Components	Hex Nuts, Flat Washers, Spring Washers
Sizes Included	M2, M3, M4, M5, M6, M8, M10, M18
Package Weight	1.2 kg
Storage Type	Compartmentalized Plastic Box
Recommended Application	Indoor Machinery and Automotive Assembly

5 reviews

Anonymous

Apr 21, 2026

Rating: 5/5

Great Value

Much cheaper than buying individual packs at the local hardware store.

Anonymous

Apr 16, 2026

Rating: 4/5

Good Variety

Most sizes are useful. Wish M12 was included in the set but otherwise great value.

Anonymous

Mar 25, 2026

Rating: 5/5

Excellent Quality

The black finish is even and the threads are clean. No issues fitting them onto standard bolts.

Anonymous

Feb 23, 2026

Rating: 5/5

Reliable Stock

We keep this kit on hand for emergency repairs. Consistent quality across batches.

Anonymous

Feb 20, 2026

Rating: 5/5

Perfect for Storage

The organizer box keeps my workshop tidy. Everything has its own spot.

5 FAQ

Q: What is the hardness rating?

A: The nuts meet Grade 8.8 hardness specifications suitable for high-strength applications.

Q: Are these stainless steel?

A: No, these are carbon steel with a black oxide finish.

Q: Can these be used outdoors?

A: We recommend indoor use as the black oxide offers limited corrosion resistance.

Q: Is the box stackable?

A: The box is sturdy but does not feature a stacking latch mechanism.

Q: Do these fit standard metric bolts?

A: Yes, they are designed for standard metric coarse thread bolts.

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