{"product_id":"gibraltar-34237ss-locking-plunger-threaded-stud-5-16-18","title":"Gibraltar 34237SS Locking Plunger Threaded Stud 5\/16-18","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe GIBRALTAR 34237SS is a locking-style spring plunger with a knobless threaded stud design, intended for use in indexing, positioning, and workholding applications across industrial and mechanical assemblies. The plunger operates on a captive spring mechanism that delivers an initial end force of 1.5 pounds and a final end force of 6 pounds, providing reliable holding force across its travel range. The stud thread size is 1\/4-20 with a 5\/16-18 body thread and a thread length of 0.625 inches. The maximum plunger diameter is 0.179 inches. This part is installed by machinists, toolmakers, and maintenance technicians working with fixtures, jigs, and mechanical assemblies requiring repeatable positioning.\u003c\/p\u003e\u003cp\u003eThe 34237SS is suited for use in production fixtures, machine tool setups, and general industrial equipment where a flush or low-profile locking plunger is needed. The knobless threaded stud configuration allows the unit to be installed in tight clearance locations where a protruding knob would interfere with adjacent components or tooling. The locking element keeps the plunger in the retracted position when needed, preventing unintended engagement during assembly or changeover operations.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eLocking plunger type with integrated locking element to hold plunger in retracted position\u003c\/li\u003e\n\u003cli\u003eKnobless threaded stud design for flush installation in clearance-critical assemblies\u003c\/li\u003e\n\u003cli\u003eInitial end force of 1.5 pounds, final end force of 6 pounds for firm, controlled positioning\u003c\/li\u003e\n\u003cli\u003e5\/16-18 body thread with 0.625 inch thread length for secure installation depth\u003c\/li\u003e\n\u003cli\u003ePlunger projection of 0.1875 inches and plunger length of 1.438 inches\u003c\/li\u003e\n\u003cli\u003eHead height of 0.344 inches with length under head\/shoulder of 0.8125 inches\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement or direct-install spring plunger for industrial fixtures, jigs, and mechanical assemblies requiring a 5\/16-18 threaded locking plunger with a knobless stud configuration.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation is performed by machinists or maintenance technicians using standard hand tools appropriate for threaded fastener installation. Ensure the mating threaded bore is clean and free of debris before installing the plunger. Do not overtighten, as this can deform the plunger housing or damage the locking element. Verify plunger projection and end force requirements are compatible with the application before assembly.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody Thread Size\u003c\/strong\u003e: 5\/16-18\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStud Thread Size\u003c\/strong\u003e: 1\/4-20\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Length\u003c\/strong\u003e: 0.625 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlunger Type\u003c\/strong\u003e: Locking\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eKnob Style\u003c\/strong\u003e: Threaded Stud (without Knob)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Plunger Diameter\u003c\/strong\u003e: 0.179 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlunger Diameter Tolerance\u003c\/strong\u003e: +0.001 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlunger Projection\u003c\/strong\u003e: 0.1875 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlunger Length\u003c\/strong\u003e: 1.438 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInitial End Force\u003c\/strong\u003e: 1.5 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinal End Force\u003c\/strong\u003e: 6 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength Under Head\/Shoulder\u003c\/strong\u003e: 0.8125 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHead Height\u003c\/strong\u003e: 0.344 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLocking Element\u003c\/strong\u003e: Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.02 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: GIBRALTAR\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 34237SS\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"GIBRALTAR","offers":[{"title":"Default Title","offer_id":51689406529842,"sku":"34237SS","price":48.12,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/d2d0665a0774e6198178e98009210b11.jpg?v=1788258992","url":"https:\/\/voomisupply.com\/products\/gibraltar-34237ss-locking-plunger-threaded-stud-5-16-18","provider":"Voomi Supply","version":"1.0","type":"link"}