Attributes

Brand	-
Category	Industrial Small Parts / Connectors and Fasteners
Origin	-
Material	Carbon Steel
Surface Treatment	Zinc Plated
Strength Grade	4.8
Standard	GB/T 6170
Thread Size Range	M3 to M20
Thread Type	Metric Coarse
Shape	Hexagon
Color	Silver
Package Quantity	100 Pieces per Box
Weight	Varies by Size

5 reviews

Anonymous

Mar 21, 2026

Rating: 5/5

Fast delivery

Arrived earlier than expected. Quality is consistent with GB standards.

Anonymous

Mar 15, 2026

Rating: 5/5

Perfect fit for my machinery

These nuts matched the bolts perfectly. The zinc plating seems durable enough for indoor use.

Anonymous

Feb 27, 2026

Rating: 4/5

Good value for money

Solid nuts for the price. One or two had slightly rough threads but nothing major.

Anonymous

Feb 12, 2026

Rating: 5/5

Reliable fasteners

Used these for assembling furniture frames. They hold tight and look clean.

Anonymous

Feb 01, 2026

Rating: 4/5

Standard quality

Nothing special but exactly what was described. Good for general purpose assembly.

5 FAQ

Q: Can I return opened packages?

A: Returns are accepted within 30 days if the product is unused and in original condition.

Q: Are these compatible with ISO metric bolts?

A: Yes, GB metric threads are generally compatible with ISO metric bolts.

Q: Is the zinc plating thick enough for outdoor use?

A: Standard zinc plating is best for indoor use. For outdoor, we recommend stainless steel or hot-dip galvanized options.

Q: What is the hardness of these nuts?

A: Grade 4.8 indicates a standard hardness suitable for general structural applications.

Q: Do you offer wholesale discounts?

A: Yes, please contact our sales team for orders exceeding 50 units.

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