All Metric Nuts – Hex, Locking, Flange & More
Monster Bolts makes it easy to shop every metric nut style in one place. From hex and acorn nuts to locking nylon inserts, prevailing torque, serrated flange, and flange nuts, we stock the sizes and materials you need.
Why Choose Monster Bolts Metric Nuts?
- Wide Variety: Hex, acorn, locking, and flange styles all in one location.
- Material Options: Alloy steel with black oxide or zinc plating, A2 stainless, and A4 (316) marine grade stainless.
- Reliability: Metric DIN/ISO standard compliance for consistent fit.
- Trusted Source: Fast shipping from the USA with customer-first support.
Find the Right Metric Nut Today
Whether you’re working on machinery, construction, marine projects, or DIY builds, Monster Bolts has the metric nuts to keep your assemblies secure. Explore the full collection below.
Hex Serrated Flange Nuts, Zinc Plated Class 8 Alloy Steel Metric DIN 6923 / ISO 4161
Sale priceFrom $0.85
Metric Hex Flange Nuts, Stainless Steel DIN 6923 / ISO 4161
Sale priceFrom $1.50
Hex Serrated Flange Nuts, Stainless Steel A2 (18-8) DIN 6923 / ISO 4161
Sale priceFrom $1.22
Metric Hex Flange Nuts, Zinc Plated Class 8 Alloy Steel DIN 6923 / ISO 4161
Sale priceFrom $0.81