{"id":3626,"date":"2026-08-08T13:36:53","date_gmt":"2026-08-08T05:36:53","guid":{"rendered":"https:\/\/www.wac-corp.com\/?p=3626"},"modified":"2026-08-08T13:36:57","modified_gmt":"2026-08-08T05:36:57","slug":"how-to-match-a-g80-clevis-selflock-hook-6mm-32mm-with-grade-80-chain","status":"publish","type":"post","link":"https:\/\/www.wac-corp.com\/pt\/how-to-match-a-g80-clevis-selflock-hook-6mm-32mm-with-grade-80-chain\/","title":{"rendered":"How to Match a G80 Clevis Selflock Hook (6mm-32mm) with Grade 80 Chain?"},"content":{"rendered":"

A hook and chain may both be marked as Grade 80, yet that does not automatically mean they will work correctly together.<\/p>\n\n\n\n

O G80 gancho de travamento autom\u00e1tico (6mm-32mm)<\/strong> is designed to connect directly with corresponding Grade 80 lifting chain. Its clevis end receives the chain link, while the self-locking hook provides a closed connection at the opposite end. The structure looks simple, but several dimensions must work together correctly.<\/p>\n\n\n\n

If the chain is too small for the clevis, excessive clearance can develop around the connection. If it is too large, the link may not sit correctly around the pin. The hook opening must also suit the actual lifting point so that the load can settle into the main bearing area instead of remaining near the hook tip.<\/p>\n\n\n\n

Reliable performance therefore begins with dimensional matching rather than nominal size alone.<\/p>\n\n\n\n

How Should a G80 gancho de travamento autom\u00e1tico (6mm-32mm)<\/a> Match the Chain?<\/h2>\n\n\n\n

The first step when matching a G80 gancho de travamento autom\u00e1tico (6mm-32mm)<\/strong> is to look beyond the chain diameter.<\/p>\n\n\n\n

A 10mm chain and a hook marked for 10mm chain may appear compatible, but the actual connection still depends on link width, link length, clevis opening, and pin diameter.<\/p>\n\n\n\n

When the chain link is installed into the clevis, it should sit naturally around the connecting pin. It should not be forced into the slot, tilted sharply, or left with excessive side movement.<\/p>\n\n\n\n

A suitable connection should allow:<\/p>\n\n\n\n

  • the chain link to sit correctly inside the clevis;<\/li>
  • the pin to pass through without forcing the link;<\/li>
  • the chain to align with the hook body;<\/li>
  • the load to transfer through the pin rather than one edge;<\/li>
  • normal movement without excessive looseness.<\/li><\/ul>\n\n\n\n

    The goal is not to eliminate every small clearance. Some movement is necessary for assembly and load alignment. The important point is to avoid a fit that is either too tight or too loose.<\/p>\n\n\n\n

    Why Nominal Chain Size Alone Is Not Enough<\/h2>\n\n\n\n

    The 6mm-32mm range represents a series of hook sizes for different chain assemblies. It does not mean that one hook can accommodate every chain within this range.<\/p>\n\n\n\n

    Even chains with the same nominal diameter may have different link proportions.<\/p>\n\n\n\n

    For example, two 13mm chains may differ in:<\/p>\n\n\n\n

    • inside link width;<\/li>
    • inside link length;<\/li>
    • link shape;<\/li>
    • manufacturing tolerance;<\/li>
    • surface condition.<\/li><\/ul>\n\n\n\n

      These differences can change the way the chain sits inside the clevis.<\/p>\n\n\n\n

      If the link is wider than the intended connection space, it may bind against the sides. If it is much narrower, repeated load changes can produce unnecessary movement around the pin.<\/p>\n\n\n\n

      This is why drawings and dimensional data provide a more reliable basis for matching than diameter alone.<\/p>\n\n\n\n

      The Clevis Connection Controls How the Load Enters the Hook<\/h2>\n\n\n\n

      The clevis is more than an attachment point. It determines how the force from the lifting chain enters the hook body.<\/p>\n\n\n\n

      Under a normal straight pull, the chain transfers load through the pin and into the clevis section. From there, the force continues through the hook body toward the load connection.<\/p>\n\n\n\n

      The load path can be simplified as:<\/p>\n\n\n\n

      Grade 80 Chain \u2192 Clevis Pin \u2192 Hook Body \u2192 Load Connection<\/strong><\/p>\n\n\n\n

      When these parts are aligned correctly, the hook works primarily in its intended direction.<\/p>\n\n\n\n

      Poor matching changes that load path.<\/p>\n\n\n\n

      For example, if the chain link sits at an angle inside the clevis, the pin may experience uneven contact. If the chain is twisted, the hook body may rotate before the load becomes stable. Repeated side contact can then increase local wear around the pin and clevis opening.<\/p>\n\n\n\n

      The advantage of a clevis design is the direct connection to the chain, but that advantage depends on correct dimensions.<\/p>\n\n\n\n

      \"G80
      G80 gancho de travamento autom\u00e1tico (6mm-32mm)<\/figcaption><\/figure>\n\n\n\n

      Why the Load Connection Must Fit the Hook Opening<\/h2>\n\n\n\n

      Chain matching is only one side of the assembly. The other side is the connection between the hook and the lifting point.<\/p>\n\n\n\n

      A G80 self-locking hook works best when the lifting point can move fully into the deeper curved section of the hook.<\/p>\n\n\n\n

      If the lifting eye or connection point is too large, it may remain near the throat instead of settling into the bowl. This changes how the force travels through the hook.<\/p>\n\n\n\n

      Three conditions should be avoided:<\/p>\n\n\n\n

      Tip Loading<\/h3>\n\n\n\n

      The lifting point remains close to the tip and transfers load into an area that is not intended to carry the main force.<\/p>\n\n\n\n

      Side Loading<\/h3>\n\n\n\n

      The lifting point presses against the hook from the side, creating additional bending rather than a mainly straight pull.<\/p>\n\n\n\n

      Loading the Lock<\/h3>\n\n\n\n

      The connection rests against the self-locking mechanism instead of the hook body.<\/p>\n\n\n\n

      The locking mechanism is designed to keep the opening closed. It should not become the main load-bearing surface.<\/p>\n\n\n\n

      Correct hook size therefore depends not only on chain diameter but also on the geometry of the lifting point.<\/p>\n\n\n\n

      What Does the Self-Locking Structure Add to the Connection?<\/h2>\n\n\n\n

      During lifting, the load rarely remains perfectly still.<\/p>\n\n\n\n

      When a load leaves the ground, chain legs tighten at slightly different moments. When the load rotates or changes position, the connection inside the hook may also move.<\/p>\n\n\n\n

      The self-locking structure helps keep the hook opening closed during these changes.<\/p>\n\n\n\n

      This gives the G80 Clevis Selflock Hook an important functional difference from a simple open hook: the connection remains enclosed even when the load position changes inside the hook.<\/p>\n\n\n\n

      However, self-locking does not mean the hook can be used at any angle.<\/p>\n\n\n\n

      The load should still settle into the bowl, and the hook should remain aligned with the main direction of pull. The locking system supports connection security; it does not replace correct load positioning.<\/p>\n\n\n\n

      How Does the 6mm-32mm Range Fit Different Lifting Assemblies?<\/h2>\n\n\n\n

      The wide size range allows the same general hook structure to be used with different Grade 80 chain systems.<\/p>\n\n\n\n

      As hook size increases, several features change together:<\/p>\n\n\n\n

      Component<\/th>What Changes<\/th><\/tr><\/thead>
      Chain connection<\/td>Clevis dimensions increase with chain size<\/td><\/tr>
      Pin<\/td>Diameter and length change with the connection<\/td><\/tr>
      Hook body<\/td>Section size increases for the corresponding load<\/td><\/tr>
      Hook opening<\/td>Space increases for larger connection points<\/td><\/tr>
      Locking system<\/td>Dimensions change with hook geometry<\/td><\/tr>
      Overall size<\/td>Becomes larger as the chain system increases<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

      The important point is that these dimensions should remain proportional to the intended chain and load connection.<\/p>\n\n\n\n

      A larger hook is not automatically better. If the lifting point is small, an unnecessarily large hook may not sit correctly. If the hook is too small, the lifting point may remain near the throat instead of entering the bowl.<\/p>\n\n\n\n

      The most effective size is the one that matches both sides of the connection.<\/p>\n\n\n\n

      Working Conditions Also Affect Hook Matching<\/h2>\n\n\n\n

      A hook that fits correctly in a workshop may behave differently when installed in a real lifting arrangement.<\/p>\n\n\n\n

      The available space, sling angle, load shape, and frequency of connection all affect how practical the hook will be.<\/p>\n\n\n\n

      For example, a compact connection may be important where lifting points are recessed inside machinery. A larger hook opening may be more useful where connection eyes are thicker. In multi-leg chain slings, the hook also needs to remain aligned as the chain angles change.<\/p>\n\n\n\n

      Common working factors include:<\/p>\n\n\n\n

      • single-leg or multi-leg sling arrangement;<\/li>
      • size and position of the lifting point;<\/li>
      • available connection space;<\/li>
      • expected chain angle;<\/li>
      • frequency of hook opening and closing;<\/li>
      • exposure to dirt, moisture, or corrosion.<\/li><\/ul>\n\n\n\n

        These factors help explain why matching should be based on the complete lifting arrangement rather than chain size alone.<\/p>\n\n\n\n

        About us<\/h2>\n\n\n\n

        For products such as the G80 gancho de travamento autom\u00e1tico (6mm-32mm)<\/strong>, dimensional matching between the hook, clevis, pin, and chain is important. Qingdao Wancheng Anchor Chain Co., Ltd. can support size matching, drawing-based production, non-standard chain accessories, and related technical requirements according to the complete chain assembly.<\/p>\n\n\n\n

        Wancheng has 269 employees and more than 90,000 m\u00b2 of production space. Its marine anchor chain range covers \u00d816mm-\u00d8122mm, together with anchors, ship accessories, and customized chain components.<\/p>\n\n\n\n

        The company also holds management system certifications for Quality, Environmental, Occupational Health and Safety, and Energy Management, with factory approvals from 13 classification societies including ABS, BV, CCS, DNV, LR, NK, RINA, and others.<\/p>\n\n\n\n

        This manufacturing background supports more consistent coordination between chain size, connecting dimensions, surface condition, and related components.<\/p>\n\n\n\n

        Conclus\u00e3o<\/h2>\n\n\n\n

        Matching a G80 gancho de travamento autom\u00e1tico (6mm-32mm)<\/strong> is not simply a matter of finding the same chain diameter printed on the product.<\/p>\n\n\n\n

        The chain link must sit correctly in the clevis, the pin must transfer the load evenly, the lifting point must fit inside the hook bowl, and the self-locking mechanism must operate without interference.<\/p>\n\n\n\n

        The most important relationship is:<\/p>\n\n\n\n

        Chain size + Clevis fit + Hook opening + Load position<\/strong><\/p>\n\n\n\n

        When these four areas are properly matched, the hook can maintain a compact connection and allow the load to follow the intended path through the Grade 80 chain assembly.<\/p>\n\n\n\n

        Perguntas frequentes<\/h2>\n\n\n\n

        Can any 13mm Grade 80 chain be used with a 13mm clevis selflock hook?<\/h3>\n\n\n\n

        Not automatically. Nominal diameter may be the same, but link width, length, and connection dimensions should also be checked.<\/p>\n\n\n\n

        Why is the clevis pin important?<\/h3>\n\n\n\n

        The pin transfers the load from the chain link into the hook body. Incorrect fit can cause uneven contact or excessive movement.<\/p>\n\n\n\n

        How should the load sit inside a self-locking hook?<\/h3>\n\n\n\n

        The lifting point should settle into the deeper load-bearing section of the hook rather than remaining near the tip, side, or locking mechanism.<\/p>\n\n\n\n

        Does a larger selflock hook provide a better connection?<\/h3>\n\n\n\n

        Not necessarily. The hook should match the chain, lifting point, required capacity, and available working space. Oversized and undersized hooks can both create poor connection geometry.<\/p>","protected":false},"excerpt":{"rendered":"

        Learn how to match a G80 Clevis Selflock Hook (6mm-32mm) with Grade 80 chain by checking chain size, clevis dimensions, pin fit, hook opening, load position, and working conditions.<\/p>","protected":false},"author":9,"featured_media":1740,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[88],"tags":[265,264],"class_list":["post-3626","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-industry-knowledge","tag-clevis-hook","tag-g80-clevis-selflock-hook"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.wac-corp.com\/pt\/wp-json\/wp\/v2\/posts\/3626","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.wac-corp.com\/pt\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.wac-corp.com\/pt\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.wac-corp.com\/pt\/wp-json\/wp\/v2\/users\/9"}],"replies":[{"embeddable":true,"href":"https:\/\/www.wac-corp.com\/pt\/wp-json\/wp\/v2\/comments?post=3626"}],"version-history":[{"count":0,"href":"https:\/\/www.wac-corp.com\/pt\/wp-json\/wp\/v2\/posts\/3626\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.wac-corp.com\/pt\/wp-json\/wp\/v2\/media\/1740"}],"wp:attachment":[{"href":"https:\/\/www.wac-corp.com\/pt\/wp-json\/wp\/v2\/media?parent=3626"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.wac-corp.com\/pt\/wp-json\/wp\/v2\/categories?post=3626"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.wac-corp.com\/pt\/wp-json\/wp\/v2\/tags?post=3626"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}