Fasteners, Pins & Hardware
This sub-category comprises specialized high-strength commercial marine fasteners, alignment pins, and retention hardware engineered to lock primary hatch linkages and pivoting assemblies securely into place. Fabricated from premium marine-grade alloys—including 316 stainless steel and structural carbon steel—these structural hardware items are built to absorb intense cyclic vibration, high shear stresses, and relentless saltwater washing. They provide the final line of mechanical security, ensuring critical hinge points, tumble bolts, and internal strongback bars remain securely aligned and operational under full vessel working loads.

Bolt Kit with Washer & Nut for 15" x 23" Multi-Bolt Raised Manhole (Model #MB-BOLT-KT20)
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Bolt Kit with Washer & Nut for 18" Multi-Bolt Raised Manhole (Model #MB-BOLT-KT18)
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Bolt Kit with Washer & Nut for 18" x 24" Multi-Bolt Raised Manhole (Model #MB-BOLT-KT24)
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Bronze Hex Nut for Multi-Bolt Raised Manholes (Model #2421)
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Handle Assembly for Multi-Bolt Semi-Flush Manholes (Model #MB-503-HNDL)
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Stainless Steel Clevis Pin Assembly for Single-Bolt Flush Manholes (Model #DB-CLVS-SS)
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Stainless Steel Hinge Pin for 2-Dog & 4-Dog Raised Bolt Hatches (Model #DB-HNGE-SS)
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