{"id":2319,"date":"2026-05-20T05:02:27","date_gmt":"2026-05-20T05:02:27","guid":{"rendered":"https:\/\/meitu-engelhardt.com\/?page_id=2319"},"modified":"2026-05-20T05:43:55","modified_gmt":"2026-05-20T05:43:55","slug":"insert-molding-boss-size-calculator","status":"publish","type":"page","link":"https:\/\/meitu-engelhardt.com\/it\/plastic-injection-molding\/overmolding-services\/insert-molding-boss-size-calculator\/","title":{"rendered":"Inserisci modanatura Boss Size Calculator"},"content":{"rendered":"\n<div class=\"wp-block-stackable-columns alignfull stk-block-columns stk-block stk-0d00aee\" data-block-id=\"0d00aee\"><div class=\"stk-row stk-inner-blocks stk-block-content stk-content-align stk-0d00aee-column alignfull\">\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-e52560a\" data-v=\"4\" data-block-id=\"e52560a\"><style>.stk-e52560a-container{margin-top:var(--stk--preset--spacing--50, 1.5rem) !important;margin-right:var(--stk--preset--spacing--50, 1.5rem) !important;margin-bottom:var(--stk--preset--spacing--50, 1.5rem) !important;margin-left:var(--stk--preset--spacing--50, 1.5rem) !important;}<\/style><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-e52560a-container stk--no-background stk--no-padding\"><div class=\"has-text-align-center stk-block-content stk-inner-blocks stk-e52560a-inner-blocks\"><div class=\"ct-breadcrumbs\" data-source=\"rankmath\" ><nav aria-label=\"breadcrumbs\" class=\"rank-math-breadcrumb\"><p><span class=\"last\">Home<\/span><\/p><\/nav><\/div><\/div><\/div><\/div>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-stackable-columns alignfull stk-block-columns stk-block stk-3570157\" data-block-id=\"3570157\"><div class=\"stk-row stk-inner-blocks stk-block-content stk-content-align stk-3570157-column alignfull\">\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-3f7420e\" data-v=\"4\" data-block-id=\"3f7420e\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-3f7420e-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-3f7420e-inner-blocks\">\n<section id=\"egl-calc-pro-module\">\n  <div class=\"egl-calc-wrapper\">\n    \n    <!-- \u9876\u90e8\u6807\u9898\u4e0e\u8bf4\u660e (\u53cc\u680f\u5e03\u5c40\u6d88\u706d\u53f3\u4fa7\u5927\u9762\u79ef\u7559\u767d) -->\n    <div class=\"egl-calc-header-grid\">\n      <div class=\"egl-calc-head-left\">\n        <div class=\"egl-calc-badge\">[ ENG-TOOL \/ 002 ] DFM Resource<\/div>\n        <h2 class=\"egl-calc-h2\">Insert Molding Boss Size Calculator<\/h2>\n      <\/div>\n      <div class=\"egl-calc-head-right\">\n        <p class=\"egl-calc-intro\">For insert molding, the plastic boss around a metal insert carries the pull-out and torque load. Too thin and it cracks; too thick and it sinks. Enter your insert diameter to get a working boss range.<\/p>\n      <\/div>\n    <\/div>\n\n    <!-- \u4e3b\u4f53\u8ba1\u7b97\u5668 (\u5de6\u53f3\u5bf9\u5f00\u7ed3\u6784\uff0c\u7d27\u51d1\u4e14\u4fe1\u606f\u5bc6\u5ea6\u9ad8) -->\n    <div class=\"egl-calc-body-grid\">\n      \n      <!-- \u5de6\u4fa7\uff1a\u8f93\u5165\u4e0e\u64cd\u4f5c\u533a -->\n      <div class=\"egl-calc-form-area\">\n        \n        <div class=\"egl-calc-field\">\n          <label class=\"egl-calc-label\" for=\"eglTypeSel\">Insert Type<\/label>\n          <!-- \u79fb\u9664\u5916\u89c2\u6e05\u9664\u6837\u5f0f\uff0c\u6062\u590d\u539f\u751f\u70b9\u51fb\u54cd\u5e94\uff0c\u5f3a\u5236\u7f6e\u9876 z-index -->\n          <select id=\"eglTypeSel\" class=\"egl-calc-input egl-calc-select\">\n            <option value=\"brass\">Brass Threaded Insert (Knurled)<\/option>\n            <option value=\"screw\">Steel \/ Stainless Self-Tapping Screw Insert<\/option>\n          <\/select>\n        <\/div>\n        \n        <div class=\"egl-calc-field\">\n          <label class=\"egl-calc-label\" for=\"eglOdInp\">Insert Outer Diameter (mm)<\/label>\n          <input type=\"number\" id=\"eglOdInp\" class=\"egl-calc-input\" min=\"1\" max=\"40\" step=\"0.1\" placeholder=\"e.g. 6.0\">\n        <\/div>\n        \n        <button class=\"egl-calc-btn\" onclick=\"eglExecuteCalc()\">Calculate Boss Diameter<\/button>\n        \n        <div class=\"egl-calc-disclaimer\">\n          <div class=\"egl-calc-icon\">i<\/div>\n          <div class=\"egl-calc-note-text\">Working rule of thumb, not a substitute for mold-flow analysis. Engelhardt confirms boss geometry and runs pull-out tests on your actual resin during sampling.<\/div>\n        <\/div>\n\n      <\/div>\n\n      <!-- \u53f3\u4fa7\uff1a\u7ed3\u679c\u4e0e CTA \u533a -->\n      <div class=\"egl-calc-result-area\">\n        <h3 class=\"egl-calc-h3\">Recommended Boss Outer Diameter<\/h3>\n        \n        <!-- \u7b49\u5f85\u8f93\u5165\u72b6\u6001 -->\n        <div id=\"eglCalcStandby\" class=\"egl-calc-standby\">\n          Awaiting Input Parameters&#8230;\n        <\/div>\n        \n        <!-- \u8ba1\u7b97\u5b8c\u6210\u72b6\u6001 -->\n        <div id=\"eglCalcDone\" class=\"egl-calc-done\" style=\"display: none;\">\n          <div id=\"eglValOut\" class=\"egl-calc-value\"><\/div>\n          <div id=\"eglDescOut\" class=\"egl-calc-desc\"><\/div>\n        <\/div>\n        \n        <!-- CTA \u56fa\u5b9a\u5728 DOM \u4e2d\u4f9b Blocksy \u7ed1\u5b9a\uff0c\u6c38\u8fdc\u4e0d\u901a\u8fc7 JS \u9500\u6bc1 -->\n        <a href=\"#ct-popup-800\" class=\"egl-calc-cta\">Get A DFM Review Of Your Insert-Molded Part<\/a>\n      <\/div>\n\n    <\/div>\n  <\/div>\n\n  <style>\n    \/* \u6700\u9ad8\u5c42\u7ea7\u4f5c\u7528\u57df\u4e0e\u5f3a\u9694\u79bb *\/\n    #egl-calc-pro-module {\n      --egl-blue: #0048F0;\n      --egl-blue-hover: #0036B8;\n      --egl-ink: #0E1525;\n      --egl-bg-light: #F5F7FA;\n      --egl-border: #DCE2F0;\n      --egl-text-main: #1A2236;\n      --egl-text-muted: #545D72;\n\n      width: 100% !important;\n      background-color: var(--egl-bg-light) !important;\n      padding: clamp(30px, 5vw, 70px) 20px !important;\n      font-family: inherit !important;\n      box-sizing: border-box !important;\n    }\n\n    #egl-calc-pro-module * {\n      box-sizing: border-box !important;\n    }\n\n    #egl-calc-pro-module .egl-calc-wrapper {\n      max-width: 1600px !important;\n      margin: 0 auto !important;\n    }\n\n    \/* \u9876\u90e8\u53cc\u680f\u5e03\u5c40\uff1a\u6d88\u706d\u7559\u767d\uff0c\u5de6\u4fa7\u6807\u9898\uff0c\u53f3\u4fa7\u5927\u6bb5\u63cf\u8ff0\u5de6\u5bf9\u9f50\u94fa\u5e73 *\/\n    #egl-calc-pro-module .egl-calc-header-grid {\n      display: grid !important;\n      grid-template-columns: 1fr !important;\n      gap: 24px !important;\n      margin-bottom: 40px !important;\n    }\n\n    @media (min-width: 992px) {\n      #egl-calc-pro-module .egl-calc-header-grid {\n        grid-template-columns: 1fr 1fr !important;\n        gap: 60px !important;\n        align-items: end !important;\n      }\n    }\n\n    #egl-calc-pro-module .egl-calc-badge {\n      display: inline-block !important;\n      background-color: var(--egl-blue) !important;\n      color: #FFFFFF !important;\n      font-family: ui-monospace, \"SF Mono\", Menlo, monospace !important;\n      font-size: 13px !important;\n      font-weight: 600 !important;\n      padding: 6px 12px !important;\n      margin-bottom: 16px !important;\n      letter-spacing: 0.05em !important;\n    }\n\n    #egl-calc-pro-module .egl-calc-h2 {\n      font-size: clamp(32px, 4vw, 44px) !important;\n      font-weight: 700 !important;\n      color: var(--egl-ink) !important;\n      margin: 0 !important;\n      line-height: 1.15 !important;\n    }\n\n    #egl-calc-pro-module .egl-calc-intro {\n      font-size: 16px !important;\n      line-height: 1.7 !important;\n      color: var(--egl-text-muted) !important;\n      margin: 0 !important;\n      padding-left: 20px !important;\n      border-left: 3px solid var(--egl-blue) !important;\n      text-align: left !important;\n    }\n\n    \/* \u4e3b\u4f53\u53cc\u680f\u4ea4\u4e92\u533a *\/\n    #egl-calc-pro-module .egl-calc-body-grid {\n      display: grid !important;\n      grid-template-columns: 1fr !important;\n      gap: 32px !important;\n      align-items: stretch !important;\n    }\n\n    @media (min-width: 992px) {\n      #egl-calc-pro-module .egl-calc-body-grid {\n        grid-template-columns: 1fr 1fr !important;\n        gap: 0 !important;\n        box-shadow: 0 10px 40px rgba(14, 21, 37, 0.08) !important;\n      }\n    }\n\n    \/* \u5de6\u4fa7\uff1a\u8868\u5355\u533a *\/\n    #egl-calc-pro-module .egl-calc-form-area {\n      background: #FFFFFF !important;\n      padding: clamp(24px, 4vw, 48px) !important;\n      border: 1px solid var(--egl-border) !important;\n      border-top: 4px solid var(--egl-blue) !important;\n      display: flex !important;\n      flex-direction: column !important;\n      justify-content: center !important;\n    }\n\n    #egl-calc-pro-module .egl-calc-field {\n      margin-bottom: 24px !important;\n    }\n\n    #egl-calc-pro-module .egl-calc-label {\n      display: block !important;\n      font-size: 14px !important;\n      font-weight: 600 !important;\n      color: var(--egl-text-main) !important;\n      margin-bottom: 8px !important;\n    }\n\n    \/* \u6062\u590d\u539f\u751f SELECT \u7684\u529f\u80fd\u6027\uff0c\u9632\u6b62\u65e0\u6cd5\u70b9\u51fb *\/\n    #egl-calc-pro-module .egl-calc-input {\n      width: 100% !important;\n      height: 52px !important;\n      font-family: inherit !important;\n      font-size: 15px !important;\n      color: var(--egl-ink) !important;\n      border: 1px solid var(--egl-border) !important;\n      padding: 0 16px !important;\n      background-color: #FAFAFA !important;\n      position: relative !important;\n      z-index: 10 !important;\n      transition: border-color 0.2s ease !important;\n    }\n\n    #egl-calc-pro-module .egl-calc-select {\n      cursor: pointer !important;\n    }\n\n    #egl-calc-pro-module .egl-calc-input:focus {\n      outline: none !important;\n      border-color: var(--egl-blue) !important;\n      background-color: #FFFFFF !important;\n    }\n\n    #egl-calc-pro-module .egl-calc-btn {\n      width: 100% !important;\n      height: 56px !important;\n      background-color: var(--egl-blue) !important;\n      color: #FFFFFF !important;\n      font-size: 16px !important;\n      font-weight: 600 !important;\n      border: none !important;\n      cursor: pointer !important;\n      margin-top: 8px !important;\n      transition: background-color 0.2s ease !important;\n    }\n\n    #egl-calc-pro-module .egl-calc-btn:hover {\n      background-color: var(--egl-blue-hover) !important;\n    }\n\n    #egl-calc-pro-module .egl-calc-disclaimer {\n      margin-top: 32px !important;\n      display: flex !important;\n      gap: 12px !important;\n      align-items: flex-start !important;\n      padding-top: 24px !important;\n      border-top: 1px dashed var(--egl-border) !important;\n    }\n\n    #egl-calc-pro-module .egl-calc-icon {\n      width: 24px !important;\n      height: 24px !important;\n      background: var(--egl-bg-light) !important;\n      color: var(--egl-text-muted) !important;\n      border-radius: 50% !important;\n      display: flex !important;\n      align-items: center !important;\n      justify-content: center !important;\n      font-weight: 700 !important;\n      font-size: 12px !important;\n      flex-shrink: 0 !important;\n    }\n\n    #egl-calc-pro-module .egl-calc-note-text {\n      font-size: 13px !important;\n      line-height: 1.6 !important;\n      color: var(--egl-text-muted) !important;\n    }\n\n    \/* \u53f3\u4fa7\uff1a\u9ad8\u5bf9\u6bd4\u5ea6\u7ed3\u679c\u533a *\/\n    #egl-calc-pro-module .egl-calc-result-area {\n      background-color: var(--egl-ink) !important;\n      padding: clamp(24px, 4vw, 48px) !important;\n      display: flex !important;\n      flex-direction: column !important;\n    }\n\n    #egl-calc-pro-module .egl-calc-h3 {\n      font-size: 20px !important;\n      font-weight: 600 !important;\n      color: #FFFFFF !important;\n      margin: 0 0 32px 0 !important;\n      padding-bottom: 16px !important;\n      border-bottom: 1px solid rgba(255, 255, 255, 0.1) !important;\n    }\n\n    #egl-calc-pro-module .egl-calc-standby {\n      flex-grow: 1 !important;\n      display: flex !important;\n      align-items: center !important;\n      justify-content: center !important;\n      font-family: ui-monospace, \"SF Mono\", Menlo, monospace !important;\n      color: rgba(255, 255, 255, 0.3) !important;\n      font-size: 14px !important;\n      border: 1px dashed rgba(255, 255, 255, 0.15) !important;\n      min-height: 200px !important;\n      margin-bottom: 32px !important;\n    }\n\n    #egl-calc-pro-module .egl-calc-done {\n      flex-grow: 1 !important;\n      margin-bottom: 32px !important;\n      animation: eglFadeIn 0.3s ease-in-out !important;\n    }\n\n    @keyframes eglFadeIn {\n      from { opacity: 0; transform: translateY(10px); }\n      to { opacity: 1; transform: translateY(0); }\n    }\n\n    #egl-calc-pro-module .egl-calc-value {\n      font-family: ui-monospace, \"SF Mono\", Menlo, monospace !important;\n      font-size: clamp(40px, 4vw, 56px) !important;\n      font-weight: 700 !important;\n      color: #5B8CFF !important;\n      line-height: 1.1 !important;\n      margin-bottom: 24px !important;\n    }\n\n    #egl-calc-pro-module .egl-calc-desc {\n      font-size: 15px !important;\n      line-height: 1.7 !important;\n      color: #DCE2F0 !important;\n      opacity: 0.9 !important;\n    }\n\n    #egl-calc-pro-module .egl-calc-cta {\n      display: block !important;\n      text-align: center !important;\n      height: 56px !important;\n      line-height: 56px !important;\n      background-color: transparent !important;\n      border: 2px solid var(--egl-blue) !important;\n      color: #FFFFFF !important;\n      font-size: 15px !important;\n      font-weight: 600 !important;\n      text-decoration: none !important;\n      transition: all 0.2s ease !important;\n      margin-top: auto !important;\n    }\n\n    #egl-calc-pro-module .egl-calc-cta:hover {\n      background-color: var(--egl-blue) !important;\n    }\n  <\/style>\n\n  <script>\n    function eglExecuteCalc() {\n      var selValue = document.getElementById('eglTypeSel').value;\n      var odString = document.getElementById('eglOdInp').value;\n      var odNum = parseFloat(odString);\n\n      \/* \u907f\u514d &&\uff0c\u5168\u7528\u5d4c\u5957 if \u6216 || *\/\n      if (isNaN(odNum)) {\n        alert('Please enter a valid insert outer diameter in mm.');\n        return;\n      }\n      \n      if (odNum <= 0) {\n        alert('Please enter a valid insert outer diameter in mm.');\n        return;\n      }\n\n      var valLow;\n      var valHigh;\n      var textContent;\n\n      \/* \u4e0d\u4f7f\u7528 indexOf \u800c\u662f\u7eaf\u7b49\u5f0f\uff0c\u907f\u514d\u6f5c\u5728\u903b\u8f91\u6df7\u6dc6 *\/\n      if (selValue === 'brass') {\n        valLow = odNum * 2.0;\n        valHigh = odNum * 2.5;\n        textContent = 'Brass knurled inserts need a substantial boss so the plastic flows fully into the knurl and locks mechanically. A boss of roughly 2.0 to 2.5 times the insert outer diameter keeps the wall from cracking during heat-staking or ultrasonic insertion and supports repeated assembly cycles.';\n      } else {\n        valLow = odNum * 1.5;\n        valHigh = odNum * 2.0;\n        textContent = 'Self-tapping steel inserts cut threads into the plastic, so a boss of about 1.5 to 2.0 times the insert outer diameter is typical. These inserts suit low-stress, one-time assembly \u2014 for repeated assembly, a brass threaded insert holds far better.';\n      }\n\n      document.getElementById('eglValOut').textContent = valLow.toFixed(1) + ' - ' + valHigh.toFixed(1) + ' mm';\n      document.getElementById('eglDescOut').textContent = textContent;\n\n      document.getElementById('eglCalcStandby').style.display = 'none';\n      document.getElementById('eglCalcDone').style.display = 'block';\n    }\n  <\/script>\n<\/section>\n<\/div><\/div><\/div>\n<\/div><\/div>\n","protected":false},"excerpt":{"rendered":"<p>[ ENG-TOOL \/ 002 ] DFM Resource Insert Molding Boss Size Calculator For insert molding, the plastic boss around a metal insert carries the pull-out and torque load. Too thin and it cracks; too thick and it sinks. Enter your insert diameter to get a working boss range. Insert Type Brass Threaded Insert (Knurled)Steel \/ [&hellip;]<\/p>\n","protected":false},"author":8,"featured_media":0,"parent":2255,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_gspb_post_css":"","footnotes":""},"class_list":["post-2319","page","type-page","status-publish","hentry"],"blocksy_meta":[],"_links":{"self":[{"href":"https:\/\/meitu-engelhardt.com\/it\/wp-json\/wp\/v2\/pages\/2319","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/meitu-engelhardt.com\/it\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/meitu-engelhardt.com\/it\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/meitu-engelhardt.com\/it\/wp-json\/wp\/v2\/users\/8"}],"replies":[{"embeddable":true,"href":"https:\/\/meitu-engelhardt.com\/it\/wp-json\/wp\/v2\/comments?post=2319"}],"version-history":[{"count":0,"href":"https:\/\/meitu-engelhardt.com\/it\/wp-json\/wp\/v2\/pages\/2319\/revisions"}],"up":[{"embeddable":true,"href":"https:\/\/meitu-engelhardt.com\/it\/wp-json\/wp\/v2\/pages\/2255"}],"wp:attachment":[{"href":"https:\/\/meitu-engelhardt.com\/it\/wp-json\/wp\/v2\/media?parent=2319"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}