{"product_id":"vlier-slr375-locking-knob-plunger-3-8-16-steel","title":"Vlier SLR375 Locking Knob Plunger 3\/8-16 Steel","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe VLIER SLR375 is a locking knob handle plunger designed for precision positioning and indexing applications in industrial and mechanical assemblies. Built from steel with a zinc gold chromate finish, this spring-loaded plunger features a countersunk knob style and delivers an initial end force of 1 pound ramping to a final end force of 8 pounds. The 3\/8-16 threaded body installs into tapped holes and provides a maximum plunger diameter of 0.185 inches with a plunger projection of 0.22 inches. The locking plunger type holds position under vibration or repeated cycling, making it reliable in demanding mechanical environments where inadvertent plunger movement is a concern.\u003c\/p\u003e\n\u003cp\u003eThe SLR375 is suited for use in jigs, fixtures, machine tool components, and industrial equipment requiring positive detent or locking retention. It installs in any assembly where a 3\/8-16 threaded mounting hole is available. The compact body length of 1.26 inches makes it appropriate for space-constrained panel or frame installations. Maintenance technicians and machine builders working on production tooling, automation equipment, and industrial enclosures are the primary installers of this component.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eLocking plunger type holds position and resists inadvertent retraction\u003c\/li\u003e\n  \u003cli\u003eCountersunk knob style for low-profile, flush-friendly installation\u003c\/li\u003e\n  \u003cli\u003e3\/8-16 thread size with 0.75 inch thread length for standard tapped-hole compatibility\u003c\/li\u003e\n  \u003cli\u003eSteel construction with zinc gold chromate finish for corrosion resistance\u003c\/li\u003e\n  \u003cli\u003eInitial end force of 1 pound to final end force of 8 pounds for controlled engagement\u003c\/li\u003e\n  \u003cli\u003eHead diameter of 1 inch and hex size of 0.2188 inches for standard wrench installation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement or new-installation plunger for industrial assemblies, jigs, and fixtures that accept a 3\/8-16 threaded spring plunger with a locking knob handle.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by machine builders or maintenance technicians using a standard wrench on the 7\/32 hex. Thread the plunger into a pre-tapped 3\/8-16 hole and tighten to the assembly specification. Ensure the mounting surface is clean and free of debris before threading in. Disengage or de-energize any moving machinery before servicing or replacing plunger components.\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: 0.75 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBody Length\u003c\/strong\u003e: 1.26 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Plunger Diameter\u003c\/strong\u003e: 0.185 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePlunger Projection\u003c\/strong\u003e: 0.22 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePlunger Length\u003c\/strong\u003e: 1.26 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: 8 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePlunger Type\u003c\/strong\u003e: Locking\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eKnob Style\u003c\/strong\u003e: Countersunk\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHead Diameter\u003c\/strong\u003e: 1 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHex Size\u003c\/strong\u003e: 0.2188 inches (7\/32)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFinish\u003c\/strong\u003e: Zinc Gold Chromate\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.0625 pounds\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: SLR375\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VLIER","offers":[{"title":"Default Title","offer_id":51959999234354,"sku":"SLR375","price":33.74,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/d548c82db8246d1b2ffcf239124f73a3_89f25f28-8a9b-4169-b7fb-d32ce630bac1.jpg?v=1789946034","url":"https:\/\/voomisupply.com\/products\/vlier-slr375-locking-knob-plunger-3-8-16-steel","provider":"Voomi Supply","version":"1.0","type":"link"}