4" Class 300 Flange Bolt Kit ASTM A307 Grade A Zinc
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Complete Class 300 flange bolt kit for 4" ASME B16.5 flanges. Contents: (8) 3/4"-10 × 4-1/2" ASTM A307 Grade A Zinc-Plated Hex Machine Bolts and (8) 3/4"-10 Zinc Finish Hex Nuts.
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