When conditions shift, the equipment that suddenly matters most isn’t the fancy electronics or the new upholstery, it’s the boats strong points. The fittings that take the load when the boat is working harder than you are.
ABYC H‑40, Anchoring, Mooring, and Strong Points defines a strong point as any fitting meant for mooring lines, anchor chains, rodes, or tow lines, and the standard sets expectations that match real world use. Each strong point has to be sized for two rodes or dock lines, because most situations don’t happen one line at a time. And both the fitting and the boat structure it is mounted to shall withstand twice the design load as defined in H-40. Additionally the design loads shall be applied in the actual direction the fitting will be used. Keep in mind, most windlasses and capstan are not rated as strong points thus there should be a strong point to transfer the load to once the boat is anchored.
It’s straightforward engineering, but it’s also the difference between a boat that stays put and one that goes wandering when the wind picks up.
For anyone looking beyond strong points, ABYC H‑40 covers the full ecosystem of load bearing hardware, including anchor rollers, chocks, windlasses, bow eyes, lifting systems, and attachment points for water toys and tow sports. ABYC members can access H‑40 for free in the ABYC Standards Library and ABYC Test Templates provide installers with a method to confirm installation tests.
Contributed by Brian Goodwin, ABYC Standards & Compliance Director