Made in USA Fasteners & USA-Machined Boat Rigging – Monster Bolts

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Discover Monster Bolts’ selection of Made in USA fasteners and USA-machined boat rigging hardware . This collection highlights American-manufactured stainless and alloy steel components—hex cap screws (ASTM F593), socket screws, nuts, washers, and marine-grade hardware—chosen for consistency, durability, and reliable performance. Built for industrial, marine, and precision applications, these parts deliver tight tolerances, dependable materials, and fast shipping from Florida. Looking for rigging parts? Explore our USA-machined cable & rigging components .