{"product_id":"gibraltar-stpr50-pt-g-locking-pull-ring-plunger-1-2-13","title":"Gibraltar STPR50-PT-G Locking Pull Ring Plunger 1\/2-13","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe GIBRALTAR STPR50-PT-G is a steel locking pull ring plunger designed for indexing, positioning, and locking applications in industrial and mechanical assemblies. It features a 1\/2-13 thread with a thread length of 1.4 inches, a plunger diameter of 0.312 inches, and a plunger projection of 0.5 inches. The locking element holds the plunger in the retracted position, preventing unintended extension during operation. End force ranges from 2.5 pounds initial to 5 pounds final, providing consistent, repeatable holding force. This plunger is installed by maintenance technicians and machine builders working on fixtures, jigs, and positioning assemblies.\u003c\/p\u003e\u003cp\u003eThe STPR50-PT-G is suited for light-duty industrial positioning tasks where a manually retractable, lockable plunger is needed. Typical installations include machine frames, tooling plates, fixture boards, and panel assemblies requiring a positive-stop or index point. The pull ring allows the operator to retract the plunger by hand without tools. This part is sold individually and is appropriate for both original equipment builds and field replacement applications.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eLocking pull ring retracts and holds plunger in disengaged position\u003c\/li\u003e\n\u003cli\u003e1\/2-13 thread for standard tapped-hole installation\u003c\/li\u003e\n\u003cli\u003eEnd force range: 2.5 pounds initial to 5 pounds final for repeatable indexing force\u003c\/li\u003e\n\u003cli\u003eSteel construction for durability in industrial environments\u003c\/li\u003e\n\u003cli\u003eCompact body length of 2 inches suitable for space-constrained assemblies\u003c\/li\u003e\n\u003cli\u003ePlunger diameter of 0.312 inches fits standard indexing receiver bores\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement or new-build component for industrial fixtures, jigs, and positioning assemblies requiring a 1\/2-13 threaded locking pull ring plunger.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation requires a tapped 1\/2-13 hole in the mounting body; verify thread depth accommodates the 1.4-inch thread length before installation. Secure the plunger body with appropriate tooling and confirm the locking element engages and releases freely before putting the assembly into service. Always de-energize or mechanically isolate the host machine before servicing plunger hardware in automated fixtures.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 1\/2-13\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Length\u003c\/strong\u003e: 1.4 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlunger Type\u003c\/strong\u003e: Locking Pull Ring\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlunger Diameter\u003c\/strong\u003e: 0.312 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlunger Projection\u003c\/strong\u003e: 0.5 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlunger Length\u003c\/strong\u003e: 2 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody Length\u003c\/strong\u003e: 2 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength Under Head\u003c\/strong\u003e: 1.4 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHead Height\u003c\/strong\u003e: 0.6 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRing Diameter\u003c\/strong\u003e: 1.26 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInitial End Force\u003c\/strong\u003e: 2.5 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinal End Force\u003c\/strong\u003e: 5 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLocking Element\u003c\/strong\u003e: Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.1 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1\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: STPR50-PT-G\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"GIBRALTAR","offers":[{"title":"Default Title","offer_id":51698376245554,"sku":"STPR50-PT-G","price":28.18,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/61111e0c1d1804ce05fc24d61bc0ffd0.jpg?v=1788361940","url":"https:\/\/voomisupply.com\/products\/gibraltar-stpr50-pt-g-locking-pull-ring-plunger-1-2-13","provider":"Voomi Supply","version":"1.0","type":"link"}