{"product_id":"vlier-sprsn250-pull-ring-plunger-1-4-20-stainless-steel","title":"Vlier SPRSN250 Pull Ring Plunger 1\/4-20 Stainless Steel","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe VLIER SPRSN250 is a stainless steel pull ring plunger designed for precision indexing, positioning, and light-duty locking applications in mechanical assemblies. It features a 1\/4-20 thread with a thread length of 0.31 inches and a non-locking, spring-loaded plunger with a diameter of 0.16 inches and a projection of 0.19 inches. The pull ring allows manual retraction of the plunger without tools, making it well suited for fixtures, jigs, and machine components where repeatable positioning under moderate spring force is required. End force ranges from 0.5 pounds initial to 2 pounds final.\u003c\/p\u003e\n\u003cp\u003eThis plunger is used in industrial and mechanical applications where a threaded, spring-loaded detent or stop point is needed. Typical installations include tooling fixtures, adjustment panels, drawer slides, and indexing mechanisms in both light manufacturing and maintenance environments. The pull ring design allows the plunger to be retracted by hand, which is useful in assemblies that require frequent repositioning or access. The stainless steel construction suits environments where corrosion resistance is a factor.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003ePull ring allows tool-free manual plunger retraction\u003c\/li\u003e\n  \u003cli\u003eNon-locking spring-loaded design for repeatable detent positioning\u003c\/li\u003e\n  \u003cli\u003eStainless steel construction for corrosion resistance\u003c\/li\u003e\n  \u003cli\u003e1\/4-20 thread for straightforward installation into standard tapped holes\u003c\/li\u003e\n  \u003cli\u003eEnd force range of 0.5 pounds initial to 2 pounds final for light-duty indexing\u003c\/li\u003e\n  \u003cli\u003eCompact body length of 0.44 inches suits tight assembly clearances\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a standard 1\/4-20 threaded spring plunger for use in mechanical assemblies, tooling fixtures, and industrial equipment requiring a non-locking pull ring detent plunger.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by threading the SPRSN250 into a pre-tapped 1\/4-20 hole using a 0.25 inch hex wrench on the head. Ensure the mating hole is clean and free of debris before installation. De-energize or lock out any powered equipment before servicing assemblies that contain spring plungers. Do not overtighten, as excessive torque can damage the plunger body or compress the internal spring beyond its design range.\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\u003eThread Length\u003c\/strong\u003e: 0.31 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBody Length\u003c\/strong\u003e: 0.44 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength Under Head\u003c\/strong\u003e: 0.31 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHead Height\u003c\/strong\u003e: 0.18 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHex Size\u003c\/strong\u003e: 0.25 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePlunger Diameter\u003c\/strong\u003e: 0.16 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePlunger Length\u003c\/strong\u003e: 0.62 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePlunger Projection\u003c\/strong\u003e: 0.19 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRing Diameter\u003c\/strong\u003e: 0.62 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInitial End Force\u003c\/strong\u003e: 0.5 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFinal End Force\u003c\/strong\u003e: 2 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePlunger Type\u003c\/strong\u003e: Non-Locking Pull Ring\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLocking Element\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Stainless Steel\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: VLIER\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: SPRSN250\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VLIER","offers":[{"title":"Default Title","offer_id":52073923117362,"sku":"SPRSN250","price":26.02,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/c7ef36811ecd839074aa4f4216d70083.jpg?v=1790050850","url":"https:\/\/voomisupply.com\/products\/vlier-sprsn250-pull-ring-plunger-1-4-20-stainless-steel","provider":"Voomi Supply","version":"1.0","type":"link"}