Find the perfect assortment of nuts and bolts, rivet nut kits, electrical terminals, and more – ideal for automotive workshops, maintenance teams, and DIY users. Each set comes in a durable, compartmented box, designed to keep your stainless steel bolts, nut and bolt sets, clips, and other workshop spares clearly organized and easy to access. Whether you're topping up your fastener stock or need a reliable all-in-one kit for on-site jobs, Castle Engineers has the solution.
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