{"product_id":"vlier-ssm57-threaded-spring-plunger-5-16-18-stainless","title":"Vlier SSM57 Threaded Spring Plunger 5\/16-18 Stainless","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe VLIER SSM57 is a stubby threaded spring plunger designed for applications requiring high end force in restricted or tight-clearance spaces. The stainless steel body and nose provide corrosion resistance and durability in demanding environments. Threaded at 5\/16-18 with a body and thread length of 0.562 inches, this plunger delivers an initial end force of 1.25 pounds and a final end force of 4 pounds. The maximum plunger diameter is 0.135 inches with a projection of 0.084 inches, making it well suited for compact assemblies where standard-length plungers will not fit. Mechanical assemblers and precision equipment technicians are the primary installers of this component.\u003c\/p\u003e\n\u003cp\u003eThe SSM57 is intended for use in industrial and mechanical assemblies where positive spring-loaded positioning, detenting, or locking is needed in a confined space. Its stubby form factor allows installation in recessed bores or threaded holes with minimal surrounding clearance. The high final end force of 4 pounds makes it appropriate for applications that require firm, consistent plunger engagement, such as tooling fixtures, indexing mechanisms, or positioning assemblies where repeatable spring-loaded contact is critical.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eStubby plunger length type for use in restricted spaces with limited depth clearance\u003c\/li\u003e\n  \u003cli\u003eStainless steel body and nose material for corrosion resistance and long service life\u003c\/li\u003e\n  \u003cli\u003e5\/16-18 thread for easy installation into standard threaded holes\u003c\/li\u003e\n  \u003cli\u003eInitial end force of 1.25 pounds and final end force of 4 pounds for high-force detent applications\u003c\/li\u003e\n  \u003cli\u003ePlunger projection of 0.084 inches and maximum plunger diameter of 0.135 inches for compact fitment\u003c\/li\u003e\n  \u003cli\u003eNo locking element, allowing straightforward threaded installation and removal\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style threaded spring plunger for high end force and restricted space applications requiring a 5\/16-18 threaded body with a stubby profile.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by mechanical assemblers or maintenance technicians using standard hand tools suitable for a 5\/16-18 threaded fastener. Ensure the receiving threaded hole is clean and free of debris before installation. De-energize or power down any associated equipment before servicing components in the assembly. Do not overtighten, as this may damage the plunger mechanism or thread engagement.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\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: 0.562 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBody Length\u003c\/strong\u003e: 0.562 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePlunger Length Type\u003c\/strong\u003e: Stubby\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Plunger Diameter\u003c\/strong\u003e: 0.135 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePlunger Projection\u003c\/strong\u003e: 0.084 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInitial End Force\u003c\/strong\u003e: 1.25 pounds\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: Stainless Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNose Material\u003c\/strong\u003e: Stainless Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLocking Element\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eApplication\u003c\/strong\u003e: High End Force, Restricted Space\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: SSM57\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VLIER","offers":[{"title":"Default Title","offer_id":52115700646194,"sku":"SSM57","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/91044e1f5cb019b4f288f7ce99cb12e9.jpg?v=1790080069","url":"https:\/\/voomisupply.com\/products\/vlier-ssm57-threaded-spring-plunger-5-16-18-stainless","provider":"Voomi Supply","version":"1.0","type":"link"}