{"product_id":"vlier-s55-threaded-spring-plunger-1-4-20-steel","title":"Vlier S55 Threaded Spring Plunger 1\/4-20 Steel","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe VLIER S55 is a threaded spring plunger designed to provide controlled positioning, indexing, or light-duty retention in mechanical assemblies. The S55 features a 1\/4-20 thread with a 1 inch thread length and a standard-length steel body measuring 1 inch. The steel nose projects 3\/16 inches and ranges from 0.117 to 0.118 inches in diameter. Initial end force is 1 pound, with a final end force of 4 pounds, making this plunger well suited for light indexing loads. Machinists, toolmakers, and mechanical assembly technicians are the primary installers of this component.\u003c\/p\u003e\n\u003cp\u003eThe S55 is used in jigs, fixtures, machine tool assemblies, and precision mechanical devices where a repeatable, spring-loaded detent or positioning stop is required. It threads directly into a tapped hole, eliminating the need for a separate housing. This makes it a compact solution for applications with limited space. Both the body and nose are steel, providing durability in industrial environments where contact wear is a concern.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e1\/4-20 threaded body with 1 inch thread length for direct installation into tapped holes\u003c\/li\u003e\n  \u003cli\u003eSteel body and steel nose for wear resistance in industrial applications\u003c\/li\u003e\n  \u003cli\u003eStandard plunger projection of 3\/16 inches\u003c\/li\u003e\n  \u003cli\u003e1 pound initial end force and 4 pound final end force for light indexing duty\u003c\/li\u003e\n  \u003cli\u003ePlunger diameter range of 0.117 to 0.118 inches for consistent engagement\u003c\/li\u003e\n  \u003cli\u003eNo locking element, allowing straightforward installation and removal with standard tooling\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 mechanical assemblies requiring a standard 1\/4-20 threaded spring plunger with a 1 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. The receiving hole must be tapped to 1\/4-20 prior to installation. Ensure the tapped hole depth accommodates the full 1 inch thread length. De-energize or lock out any machinery before installing or servicing spring plungers in moving assemblies.\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: 1 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBody Length\u003c\/strong\u003e: 1 inch\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: 0.117 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Plunger Diameter\u003c\/strong\u003e: 0.118 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInitial End Force\u003c\/strong\u003e: 1 pound\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFinal End Force\u003c\/strong\u003e: 4 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\u003ePlunger Length Type\u003c\/strong\u003e: Standard\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLocking Element\u003c\/strong\u003e: No\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: S55\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VLIER","offers":[{"title":"Default Title","offer_id":52055353917746,"sku":"S55","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/e9eb9b405dbaf5b5b35e469ba9d02851.jpg?v=1790037486","url":"https:\/\/voomisupply.com\/products\/vlier-s55-threaded-spring-plunger-1-4-20-steel","provider":"Voomi Supply","version":"1.0","type":"link"}