{"product_id":"gibraltar-34240-locking-plunger-5-8-11-threaded-stud-steel","title":"Gibraltar 34240 Locking Plunger 5\/8-11 Threaded Stud Steel","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe GIBRALTAR 34240 is a locking knob-style plunger with a knobless threaded stud design, intended for use in positioning, clamping, and indexing applications across industrial and mechanical assemblies. The plunger features a 5\/8-11 external thread with a 1-inch thread length and delivers an initial end force of 5 pounds, ramping to a final end force of 10 pounds at full engagement. The maximum plunger diameter is 0.373 inches with a diameter tolerance of plus 0.001 inches. Constructed from steel with a zinc-plated finish, this plunger is suited for use in shop fixtures, jigs, machine tool setups, and fabrication environments where a secure, repeatable locking position is required.\u003c\/p\u003e\n\u003cp\u003eThis plunger is commonly installed in manufacturing fixtures, workholding equipment, and mechanical assemblies where controlled spring force and positive locking are needed. The knobless threaded stud configuration allows it to be actuated with a separate handle or integrated directly into a panel or plate. The stud thread size is 1\/2-13, and the length under head or shoulder measures 1.3125 inches. A plunger projection of 0.3125 inches provides consistent engagement depth in typical indexing or detent applications. Machinists, tool-and-die technicians, and industrial maintenance professionals are the primary installers of this component.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eLocking plunger design with positive locking element for secure hold at indexed positions\u003c\/li\u003e\n  \u003cli\u003e5\/8-11 external thread with 1-inch thread length for standard fixture integration\u003c\/li\u003e\n  \u003cli\u003eInitial end force of 5 pounds, final end force of 10 pounds for controlled spring engagement\u003c\/li\u003e\n  \u003cli\u003eKnobless threaded stud (1\/2-13) allows flush or recessed installation\u003c\/li\u003e\n  \u003cli\u003eSteel construction with zinc-plated finish for corrosion resistance in shop environments\u003c\/li\u003e\n  \u003cli\u003ePlunger diameter tolerance of plus 0.001 inches for precise fit in bored holes\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement or direct-install component for industrial fixtures, jigs, and mechanical assemblies requiring a 5\/8-11 threaded locking plunger with a knobless stud configuration.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is typically performed by machinists or industrial maintenance technicians using standard hand tools. Ensure the mating threaded bore is clean and free of debris before threading the plunger into position. Verify that the plunger hole diameter in the receiving workpiece matches the maximum plunger diameter of 0.373 inches within the specified tolerance before assembly. Do not exceed the rated end force by using additional mechanical advantage on the locking element.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 5\/8-11\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Length\u003c\/strong\u003e: 1 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInitial End Force\u003c\/strong\u003e: 5 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFinal End Force\u003c\/strong\u003e: 10 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Plunger Diameter\u003c\/strong\u003e: 0.373 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\u003ePlunger Projection\u003c\/strong\u003e: 0.3125 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePlunger Length\u003c\/strong\u003e: 2.186 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength Under Head\/Shoulder\u003c\/strong\u003e: 1.3125 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHead Height\u003c\/strong\u003e: 7\/16 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStud Thread Size\u003c\/strong\u003e: 1\/2-13\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\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: 0.1 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: 34240\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"GIBRALTAR","offers":[{"title":"Default Title","offer_id":51693140279602,"sku":"34240","price":40.82,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/67862b62bb3b6158ad411e2c11b04b92.jpg?v=1788307850","url":"https:\/\/voomisupply.com\/products\/gibraltar-34240-locking-plunger-5-8-11-threaded-stud-steel","provider":"Voomi Supply","version":"1.0","type":"link"}