Hexagonal Bolt Material

Imperial

ALL IMPERIAL	Galvanized Low Strength Grade 2	Black Steel Medium Strength Grade 5	Zinc Plated Medium Strength Grade 5
Black Steel Medium Strength Grade 8	Yellow Zinc Plated Medium Strength Grade 8	Cadium Plated High Strength Grade 9	Brass
Silicone-Bronze	304 Stainless Steel	316 Stainless Steel	Aluminum

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Metric

ALL METRIC	Black Steel Medium Strength Grade 8.8	Zinc Plated Medium Strength Grade 8.8	Yellow Zinc Plated Medium Strength Grade 10.9
A2 Stainless Steel	A4 Stainless Steel