Hexagonal Nut Material

Imperial

Nylon	Black Steel Low Strength Grade 2	Zinc Plated Low Strength Grade 2	Galvanized Low Strength Grade 2
Black Steel Medium Strength Grade 5	Zinc Plated Medium Strength Grade 5	Brass	Black Steel Medium Strength Grade 8
Yellow Zinc Plated Medium High Strength Grade 8	Cadium Plated High Strength Grade 9	304 Stainless Steel	316 Stainless Steel

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Metric

Nylon	Black Steel Low Strength 8.8	Zinc Plated Low Strength Grade 8.8	Zinc Plated Medium Strength 10.9
Zinc Plated High Strength 12.9	Yellow Zinc Medium Strength 10.9	Yellow Zinc Medium Strength 12.9	A2 Stainless Steel