{"product_id":"gibraltar-34252-knob-handle-plunger-3-8-16-steel","title":"Gibraltar 34252 Knob Handle Plunger 3\/8-16 Steel","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe GIBRALTAR 34252 is a non-locking knob handle plunger with a threaded stud body, designed for use in positioning, indexing, and locating applications across light industrial and mechanical assembly environments. The plunger features a 3\/8-16 external thread with a 0.75 inch thread length and a maximum plunger diameter of 0.216 inches. Spring end force ranges from 1.5 pounds initial to 8 pounds final, making it suitable for applications requiring controlled, repeatable plunger engagement. Constructed from steel with a zinc-plated finish, the 34252 is installed by machine builders, maintenance technicians, and fabrication professionals.\u003c\/p\u003e\n\u003cp\u003eThis plunger is used in machine tool fixtures, jigs, workholding assemblies, and general mechanical positioning systems. The knobless threaded stud design allows the unit to be threaded directly into a tapped hole without requiring a knob for actuation. The compact body length of 0.9688 inches and plunger projection of 0.2188 inches make it well-suited for tight-clearance mounting locations in both light industrial and precision assembly applications.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eNon-locking plunger type for straightforward spring-loaded engagement\u003c\/li\u003e\n  \u003cli\u003e3\/8-16 external thread with 0.75 inch thread length for secure installation in tapped housings\u003c\/li\u003e\n  \u003cli\u003eSpring force range of 1.5 pounds initial to 8 pounds final end force\u003c\/li\u003e\n  \u003cli\u003eKnobless threaded stud design allows flush or recessed mounting\u003c\/li\u003e\n  \u003cli\u003eSteel construction with zinc-plated finish for corrosion resistance in industrial environments\u003c\/li\u003e\n  \u003cli\u003eStud thread size of 5\/16-18 for standard hardware compatibility\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement or direct installation component for mechanical fixtures, jigs, and positioning assemblies that accept a 3\/8-16 threaded plunger with a non-locking spring mechanism.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by threading the stud directly into a pre-tapped 3\/8-16 hole using standard hand tools. Ensure the mating thread is clean and free of debris before installation. Disengage or de-energize any moving components in the assembly before servicing or replacing the plunger. Do not exceed the rated final end force when compressing the plunger during installation or operation.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 3\/8-16\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Length\u003c\/strong\u003e: 0.75 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStud Thread Size\u003c\/strong\u003e: 5\/16-18\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: 8 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Plunger Diameter\u003c\/strong\u003e: 0.216 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePlunger Projection\u003c\/strong\u003e: 0.2188 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePlunger Length\u003c\/strong\u003e: 1.691 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePlunger Diameter Tolerance\u003c\/strong\u003e: plus 0.001 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBody Length\u003c\/strong\u003e: 0.9688 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength Under Head\/Shoulder\u003c\/strong\u003e: 0.219 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHead Height\u003c\/strong\u003e: 13\/32 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePlunger Type\u003c\/strong\u003e: Non-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\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\u003eFinish\u003c\/strong\u003e: Zinc-Plated\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.03 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\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: 34252\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"GIBRALTAR","offers":[{"title":"Default Title","offer_id":51715195928882,"sku":"34252","price":46.43,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/5ed6933ff91e511044e46bce8cd22ccd.jpg?v=1788510424","url":"https:\/\/voomisupply.com\/products\/gibraltar-34252-knob-handle-plunger-3-8-16-steel","provider":"Voomi Supply","version":"1.0","type":"link"}