{"product_id":"vlier-s59n-threaded-spring-plunger-3-8-16-steel-locking","title":"Vlier S59N Threaded Spring Plunger 3\/8-16 Steel Locking","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe VLIER S59N is a threaded spring plunger designed for positive positioning and indexing applications in mechanical assemblies. It features a 3\/8-16 thread with a 1-1\/8 inch thread length and a steel body with an integrated locking element that secures the plunger in place once installed. The plunger nose diameter ranges from 0.186 to 0.187 inches with a 3\/16 inch projection. Initial end force is 2.8 pounds and final end force is 7.2 pounds, providing consistent, repeatable holding force in tooling, fixtures, and precision assemblies. Licensed machinists, tool and die makers, and mechanical assembly technicians typically specify and install this component.\u003c\/p\u003e\n\u003cp\u003eThe S59N is suited for use in machine tool fixtures, jigs, workholding equipment, and industrial positioning assemblies where a reliable spring-loaded detent is required. The standard-length plunger configuration fits a wide range of threaded bore applications calling for a 3\/8-16 thread. The locking element prevents the plunger body from backing out under vibration or load cycling, making it appropriate for demanding production environments where fastener retention is critical.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e3\/8-16 thread size with 1-1\/8 inch thread and body length for standard fitment\u003c\/li\u003e\n  \u003cli\u003eSteel body and steel nose material for durability in industrial environments\u003c\/li\u003e\n  \u003cli\u003eIntegrated locking element prevents back-out under vibration\u003c\/li\u003e\n  \u003cli\u003e2.8 pound initial end force and 7.2 pound final end force for consistent detent action\u003c\/li\u003e\n  \u003cli\u003ePlunger projection of 3\/16 inch with nose diameter of 0.186 to 0.187 inches\u003c\/li\u003e\n  \u003cli\u003eStandard plunger length type for broad compatibility with common bore configurations\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style threaded spring plunger for mechanical fixtures, jigs, and positioning assemblies that accept a 3\/8-16 threaded bore with a standard 1-1\/8 inch body length.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by machinists or mechanical assembly technicians using standard hand tools sized for the 3\/8-16 thread. De-energize or lock out any powered equipment before installing or removing spring plungers in active machinery. The locking element should be fully engaged to the mating bore upon installation to prevent loosening under load. Do not exceed the rated final end force when selecting this plunger for a given application.\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: 1-1\/8 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBody Length\u003c\/strong\u003e: 1-1\/8 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePlunger Projection\u003c\/strong\u003e: 3\/16 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMinimum Plunger Diameter\u003c\/strong\u003e: 0.186 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Plunger Diameter\u003c\/strong\u003e: 0.187 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInitial End Force\u003c\/strong\u003e: 2.8 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFinal End Force\u003c\/strong\u003e: 7.2 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBody Material\u003c\/strong\u003e: Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNose Material\u003c\/strong\u003e: Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLocking Element\u003c\/strong\u003e: Yes\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePlunger Length Type\u003c\/strong\u003e: Standard\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: S59N\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VLIER","offers":[{"title":"Default Title","offer_id":52080507978034,"sku":"S59N","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/08625929703be95585854b3ef7ed95cc.jpg?v=1790055604","url":"https:\/\/voomisupply.com\/products\/vlier-s59n-threaded-spring-plunger-3-8-16-steel-locking","provider":"Voomi Supply","version":"1.0","type":"link"}