{"product_id":"vlier-ssfrs250-locking-l-handle-spring-plunger-1-4-20","title":"Vlier SSFRS250 Locking L Handle Spring Plunger 1\/4-20","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe VLIER SSFRS250 is a locking L handle spring plunger designed for precise, repeatable positioning and locking in mechanical assemblies. It features a 1\/4-20 thread with a 0.5 inch thread length and a stainless steel body and handle, making it suitable for corrosion-resistant applications. The plunger delivers an initial end force of 0.12 pounds and a final end force of 0.5 pounds, providing controlled spring resistance. Machinists, toolmakers, and mechanical assembly technicians install these plungers in fixtures, jigs, and machine components where positive locking and indexed positioning are required.\u003c\/p\u003e\u003cp\u003eThis spring plunger is intended for use in light-duty mechanical positioning applications across industrial and manufacturing environments. The locking L handle allows the operator to retract and lock the plunger in the retracted position, enabling part loading and unloading without constant manual pressure. It is well suited for use in fixture plates, assembly jigs, and precision tooling where repeatable positioning is critical.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eLocking L handle retracts and holds plunger for hands-free part handling\u003c\/li\u003e\n\u003cli\u003eStainless steel handle and body for corrosion resistance in demanding environments\u003c\/li\u003e\n\u003cli\u003e1\/4-20 thread for compatibility with standard tapped holes in tooling plates and fixtures\u003c\/li\u003e\n\u003cli\u003eLow initial end force of 0.12 pounds rising to 0.5 pounds final end force for controlled engagement\u003c\/li\u003e\n\u003cli\u003eCompact plunger projection of 0.2 inches suits shallow indexing applications\u003c\/li\u003e\n\u003cli\u003eSmall overall package suits confined fixture layouts\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement or direct installation spring plunger for standard 1\/4-20 tapped holes in fixture plates, jigs, and mechanical assemblies requiring a locking L handle plunger.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation is performed by threading the plunger into a pre-tapped 1\/4-20 hole to the specified thread engagement depth. Power down or de-energize any associated equipment before servicing plungers in live fixtures or automated machinery. Use appropriate hand tools for the 0.25 inch hex size; avoid overtightening, which can distort the plunger housing or affect spring performance. Follow applicable machinery safety standards and facility lockout procedures during installation.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\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: 0.5 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody Length\u003c\/strong\u003e: 0.75 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlunger Length\u003c\/strong\u003e: 0.75 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 Projection\u003c\/strong\u003e: 0.2 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength Under Head\u003c\/strong\u003e: 0.5 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength Between Head and Thread\u003c\/strong\u003e: 0.13 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInitial End Force\u003c\/strong\u003e: 0.12 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinal End Force\u003c\/strong\u003e: 0.5 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHandle Length\u003c\/strong\u003e: 0.4 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHandle Diameter\u003c\/strong\u003e: 0.09 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\u003eHead Height\u003c\/strong\u003e: 0.25 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlunger Type\u003c\/strong\u003e: Locking\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHandle Material\u003c\/strong\u003e: Stainless Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.01 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\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: SSFRS250\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VLIER","offers":[{"title":"Default Title","offer_id":51974415679794,"sku":"SSFRS250","price":37.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/7fceea53f236437773a738ba46baf9de_74e6d595-0422-4409-9bf6-15b2725d1b08.jpg?v=1789977266","url":"https:\/\/voomisupply.com\/products\/vlier-ssfrs250-locking-l-handle-spring-plunger-1-4-20","provider":"Voomi Supply","version":"1.0","type":"link"}