{"product_id":"gibraltar-34154-non-locking-knob-plunger-1-4-20-thread","title":"Gibraltar 34154 Non-locking Knob Plunger 1\/4-20 Thread","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe GIBRALTAR 34154 is a non-locking spring plunger designed for indexing, positioning, and light-duty locking applications in industrial and mechanical assemblies. It features a 1\/4-20 threaded stud body with a 1\/2 inch thread length and a small-diameter plunger measuring 0.1240 inches maximum. The spring delivers an initial end force of 0.50 pounds ramping to a final end force of 2.50 pounds, making it suitable for low-load detent and positioning tasks. The knobless threaded stud configuration allows the plunger to be installed flush or countersunk into a tapped bore without an exposed handle above the surface. Machinists, tool and die technicians, and mechanical assembly professionals typically install this component.\u003c\/p\u003e\n\u003cp\u003eThis plunger is suited for use in jigs, fixtures, tooling plates, and machine tool components where repeatable positioning or light detent action is required. The threaded stud design allows direct installation into a tapped hole in metal or engineered plastic assemblies. The 1\/8 inch plunger projection and 0.1240 inch plunger diameter make it appropriate for fine-pitch indexing features and precision fixtures where a low-profile, compact plunger is needed. Its locking element provides added resistance against unintended backing out of the threaded bore during operation or vibration.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eNon-locking plunger type for smooth, repeatable detent action\u003c\/li\u003e\n  \u003cli\u003e1\/4-20 threaded stud body with 1\/2 inch thread length for secure installation in tapped bores\u003c\/li\u003e\n  \u003cli\u003eSpring end force range of 0.50 pounds initial to 2.50 pounds final for light-load positioning\u003c\/li\u003e\n  \u003cli\u003eKnobless threaded stud configuration for low-profile, flush-mount installations\u003c\/li\u003e\n  \u003cli\u003eLocking element resists backing out under vibration or cyclic loading\u003c\/li\u003e\n  \u003cli\u003eMaximum plunger diameter of 0.1240 inches suits precision fixture and tooling applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement or direct-fit component for industrial jigs, fixtures, tooling plates, and mechanical assemblies requiring a 1\/4-20 threaded non-locking spring plunger.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is typically performed by machinists or mechanical assembly technicians using a standard hex wrench or spanner tool sized for the stud head. The receiving bore must be tapped to 1\/4-20 specification before installation. Ensure the mating bore is clean and free of debris before threading the stud in. Do not overtighten, as this can deform the plunger bore or affect spring travel and end force characteristics.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 1\/4-20\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStud Thread Size\u003c\/strong\u003e: 10-32\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Length\u003c\/strong\u003e: 0.5000 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\u003eMaximum Plunger Diameter\u003c\/strong\u003e: 0.1240 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePlunger Diameter Tolerance\u003c\/strong\u003e: +0.0010 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePlunger Projection\u003c\/strong\u003e: 0.1250 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePlunger Length\u003c\/strong\u003e: 1.0620 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength Under Head\/Shoulder\u003c\/strong\u003e: 0.1250 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHead Height\u003c\/strong\u003e: 15\/64 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInitial End Force\u003c\/strong\u003e: 0.50 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFinal End Force\u003c\/strong\u003e: 2.50 pounds\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: 0.01 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: 34154\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"GIBRALTAR","offers":[{"title":"Default Title","offer_id":51711719702834,"sku":"34154","price":33.21,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/32171bfa03582a0a85185a60656a4169.jpg?v=1788478869","url":"https:\/\/voomisupply.com\/products\/gibraltar-34154-non-locking-knob-plunger-1-4-20-thread","provider":"Voomi Supply","version":"1.0","type":"link"}