{"product_id":"vlier-sssd56-threaded-spring-plunger-5-16-18-stainless-steel","title":"Vlier SSSD56 Threaded Spring Plunger 5\/16-18 Stainless Steel","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe VLIER SSSD56 is a threaded spring plunger designed for indexing, positioning, and light retention applications in mechanical assemblies. The body is machined from stainless steel, and the nose is Delrin, providing corrosion resistance alongside a non-marring contact point. This plunger carries a 5\/16-18 thread with a 1-inch thread length, a plunger projection of 3\/16 inches, and a plunger diameter ranging from 0.133 to 0.135 inches. Initial end force is 3 pounds and final end force is 15 pounds. It is installed by machinists, tool-and-die technicians, and maintenance mechanics wherever repeatable spring-loaded positioning is required.\u003c\/p\u003e\n\u003cp\u003eThis plunger suits standard-length threaded bore applications in jigs, fixtures, machine tool components, and automation equipment. Its stainless steel body makes it appropriate for environments where mild corrosion resistance is needed. The Delrin nose reduces surface damage to mating parts during repeated contact cycles. The 5\/16-18 thread is a common unified coarse pitch, compatible with a wide range of tapped holes in ferrous and non-ferrous workpieces.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eStainless steel body for corrosion resistance in demanding shop environments\u003c\/li\u003e\n  \u003cli\u003eDelrin nose minimizes marring on mating surfaces during repeated engagement\u003c\/li\u003e\n  \u003cli\u003e3-pound initial end force and 15-pound final end force for positive positioning feedback\u003c\/li\u003e\n  \u003cli\u003eStandard plunger length type with 1-inch body and thread length\u003c\/li\u003e\n  \u003cli\u003ePlunger projection of 3\/16 inches suits shallow indexing applications\u003c\/li\u003e\n  \u003cli\u003eNo locking element  -  allows straightforward thread-in installation and adjustment\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style threaded spring plunger for tapped 5\/16-18 bores in jigs, fixtures, and precision mechanical assemblies requiring spring-loaded indexing or retention.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by threading the plunger directly into a tapped 5\/16-18 bore using a hex key or appropriate drive tool. Ensure the mating bore is clean and free of debris before installation. Torque to the assembly manufacturer's specification and verify plunger travel is unobstructed before returning the assembly to service. Power down or de-energize any automated equipment before servicing spring plungers in active assemblies.\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: 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: 0.133 inches\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\u003eInitial End Force\u003c\/strong\u003e: 3 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFinal End Force\u003c\/strong\u003e: 15 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: Delrin\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: None\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: SSSD56\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VLIER","offers":[{"title":"Default Title","offer_id":51979029217586,"sku":"SSSD56","price":19.42,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/393dcf3204da4712b94365b4139976b3.jpg?v=1789980560","url":"https:\/\/voomisupply.com\/products\/vlier-sssd56-threaded-spring-plunger-5-16-18-stainless-steel","provider":"Voomi Supply","version":"1.0","type":"link"}