Made in USA Fasteners & USA-Machined Boat Rigging – Monster Bolts
124 products
Showing 97 - 124 of 124 products
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.
Showing 97 - 124 of 124 products
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Bulk L9 Collar Locknuts – Alloy Steel Cadmium Yellow & Wax, Made in U.S.A.
Sale priceFrom $691.32


Bulk L9 Hex Nuts – Alloy Steel Cadmium Yellow & Wax (Coarse & Fine Thread, Made in U.S.A.)
Sale priceFrom $603.14


Bulk 1-1/2"-6 L9 Hex Head Cap Screw – Coarse Thread Alloy Steel Zinc Yellow CR+3 (Made in U.S.A.)
Sale priceFrom $1,044.70


Bulk 1/4"-20 L9 Hex Head Cap Screw – Alloy Steel Zinc Yellow CR+3 (Made in U.S.A.)
Sale priceFrom $333.98
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