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The sealing washers for hex head bolts are yellow chromate plated with a vulcanized rubber insert
this sealer dries clear and resists yellowing for a clean low profile appearance
Just push it in to the fitting
Note: In many cases more than one coat will be needed to solve the problem
Do not use a pliers or wrench
M18 x 2.5 x 150 Mm Coarse Class 8.8 Zinc Plated Steel Hex Head Cap Screw Best Seller The sealing washers for hexCap Screws are proportioned and toleranced to assure full and proper loading when assembled into a tapped hole. A washer face is provided under the head to provide a bearing surface when tightened. this feature ensures proper fit up into tapped holes without counterboring. Cap screws feature a chamfered end to aid in inserting into a tapped hole. Hex head cap screws are available in a variety of material grades including: Grade 2 Grade 5 Grade 8 and