6 inch (150mm) pelican hook - 1 Pack 6" Pelican Hook Eye For Boat Guard Rail Marine Grade 316 Stainless For boating applications that require a high strength release Pelican hook with link. Suitable / used for work positioning when tying rebar. Used for joining and safety rails where a quick release is needed this can either be at the deck side or where passengers get on and off the boat Widely used in lifeboats, life rafts and other marine hardware US Stainless Stainless Steel 316 Pelican Hook M6 The pelican hooks are made in the metric specification of M6. The Imperial equivalent is generally considered to be 1/4". Not to be used for overhead lifting Link allows for quick release if necessary