Attributes

Brand	-
Category	Industrial Small Parts / Connectors and Fasteners
Origin	-
Material	Alloy Steel
Strength Grade	12.9
Thread Size	M16 / M20
Surface Finish	Black Oxide
Hardness	39-44 HRC
Nut Type	Extended Hex
Standard	DIN 934
Package Quantity	10 Pieces
Weight	0.5 kg
Application	Mold Clamping

5 reviews

Anonymous

Apr 19, 2026

Rating: 5/5

Excellent Strength

These nuts hold up well under high tension. Perfect for my mold clamps.

Anonymous

Mar 26, 2026

Rating: 5/5

Heavy Duty

Exactly what I needed for heavy machinery assembly. Highly recommend.

Anonymous

Mar 09, 2026

Rating: 5/5

Perfect Fit

Matches M20 bolts perfectly. No cross-threading issues.

Anonymous

Feb 14, 2026

Rating: 5/5

Fast Shipping

Product arrived quickly and was well packaged. Very satisfied.

Anonymous

Feb 06, 2026

Rating: 4/5

Good Quality

Solid construction. Finish was slightly uneven on one piece but works fine.

5 FAQ

Q: Do you sell matching Grade 12.9 bolts?

A: Yes, please check our store catalog for matching high-tensile bolts.

Q: Are these compatible with standard metric bolts?

A: Yes, these are designed for standard metric thread pitches.

Q: Can these be used for automotive applications?

A: Yes, they are suitable for high-stress automotive assemblies.

Q: Is the black oxide finish rust resistant?

A: It offers moderate corrosion resistance, but oiling is recommended for outdoor use.

Q: What is the recommended torque setting?

A: Please consult a torque chart for Grade 12.9 fasteners based on lubrication.

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