{"product_id":"gibraltar-34146-non-locking-plunger-5-16-18-thread-steel","title":"Gibraltar 34146 Non-locking Plunger 5\/16-18 Thread Steel","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe GIBRALTAR 34146 is a non-locking spring plunger designed for indexing, positioning, and light-duty clamping applications in mechanical assemblies. It features a threaded stud body with a 5\/16-18 thread size and a 5\/8-inch thread length, allowing secure installation into tapped holes in metal fixtures and machine components. The steel construction with a zinc finish provides corrosion resistance suitable for industrial environments. Spring force ranges from 1.5 pounds initial end force to 6 pounds final end force, giving technicians predictable resistance during engagement. The knobless threaded stud style is intended for flush or recessed installations where a protruding knob is not practical.\u003c\/p\u003e\u003cp\u003eThis plunger is used in mechanical and industrial assembly applications where repeatable part positioning or panel retention is needed. It fits into tapped holes requiring a 5\/16-18 thread and is appropriate for machine builders, maintenance technicians, and fabrication professionals working on fixtures, jigs, enclosures, and equipment panels. The compact plunger projection of 3\/16 inches suits installations with limited clearance.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eNon-locking spring plunger with 1.5 pound initial end force and 6 pound final end force\u003c\/li\u003e\n\u003cli\u003e5\/16-18 thread size with 5\/8-inch thread length for secure tapped-hole installation\u003c\/li\u003e\n\u003cli\u003eKnobless threaded stud configuration for low-profile or recessed mounting\u003c\/li\u003e\n\u003cli\u003eMaximum plunger diameter of 0.155 inches with a diameter tolerance of plus 0.001 inches\u003c\/li\u003e\n\u003cli\u003eSteel body with zinc finish for durability and corrosion resistance\u003c\/li\u003e\n\u003cli\u003ePlunger projection of 3\/16 inches suitable for tight-clearance assemblies\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a direct-fit replacement or new-installation spring plunger for mechanical assemblies, fixtures, and equipment panels requiring a 5\/16-18 threaded body with a knobless stud configuration.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation is performed by threading the stud body into a pre-tapped 5\/16-18 hole using a wrench applied to the hex body or shoulder. Ensure the mating hole is clean and properly tapped to the correct depth before installation. Do not overtighten, as excessive torque can distort the plunger housing or affect spring function. Verify plunger projection and spring force are compatible with the intended indexing or retention load before finalizing the assembly.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 5\/16-18\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Length\u003c\/strong\u003e: 5\/8 inches (0.625 inches)\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\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\u003eMaximum Plunger Diameter\u003c\/strong\u003e: 0.155 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: 3\/16 inches (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\u003eLength Under Head\/Shoulder\u003c\/strong\u003e: 0.188 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHead Height\u003c\/strong\u003e: 11\/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\u003eMaterial\u003c\/strong\u003e: Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish\u003c\/strong\u003e: Zinc\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: 34146\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"GIBRALTAR","offers":[{"title":"Default Title","offer_id":51692809453874,"sku":"34146","price":32.18,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/7ffcf2c850f33e09be54743448b74e6b_edf36cc0-5582-4eda-a87b-11fae1b713f4.jpg?v=1788303268","url":"https:\/\/voomisupply.com\/products\/gibraltar-34146-non-locking-plunger-5-16-18-thread-steel","provider":"Voomi Supply","version":"1.0","type":"link"}