Carriage Bolt Material

Imperial

ALL IMPERIAL	Black Steel Low Strength Grade 2	Black Steel Medium Strength Grade 5	Black Steel High Strength Grade 8
Zinc Plated Low Strength Grade 2	Zinc Plated Medium Strength Grade 5	304 Stainless Steel	316 Stainless Steel
Galvanized Low Strength Grade 2	Yellow Zinc Plated High Strength Grade 8

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Metric

ALL METRIC

Zinc Plated Low Strength Grade 8.8

304 Stainless Steel

316 Stainless Steel