{"product_id":"thermo-scientific-centrifuge-tube-screw-caps-with-o-ring","title":"Thermo Scientific Centrifuge Tube Screw Caps with O-Ring Total of 500 Caps","description":"\u003ch3\u003eThermo Scientific Screw Cap Microcentrifuge Tube Caps – Natural Polypropylene, Integrated O-Ring, Knurled Edge, Non-Sterile, PCR Ready (MPN: 3471)\u003c\/h3\u003e\n\u003cp\u003eThe Thermo Scientific 3471 (also cataloged as 3471PK \/ 3471-CS) is a premium, molecular-biology-grade replacement closure precision-engineered for threaded microcentrifuge tubes and screw-cap microtubes. Molded from high-purity natural virgin polypropylene, these heavy-duty caps incorporate a high-retention internal elastomeric O-ring gasket. When threaded down, the O-ring establishes a resilient, gas-tight mechanical seal that withstands extreme relative centrifugal forces and blocks ambient moisture migration. Designed with a ribbed, knurled outer perimeter for secure, slip-free handling during high-throughput benchwork, these non-sterile caps are certified PCR ready and fully autoclave-safe for critical sample banking loops.\u003c\/p\u003e\n\n\u003ch3\u003eTechnical Performance and Design\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003cp style=\"margin: 0;\"\u003e\u003cb\u003eElastomeric O-Ring Seal:\u003c\/b\u003e Outfitted with a high-performance internal O-ring gasket that creates a robust mechanical barrier. This configuration counters severe internal vapor pressure spikes and prevents liquid tracking during extreme-heat boiling steps or long-term deep freezing.\u003c\/p\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cp style=\"margin: 0;\"\u003e\u003cb\u003eKnurled Outer Perimeter Grip:\u003c\/b\u003e The vertical ribbed exterior rim provides excellent surface friction. This structural profile enables fast, non-slip manual tightening or effortless capping and uncapping routines when wearing damp nitrile laboratory gloves.\u003c\/p\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cp style=\"margin: 0;\"\u003e\u003cb\u003ePCR Ready Purity Profile:\u003c\/b\u003e Manufactured under automated cleanroom conditions to secure strict chemical purity metrics. Every batch is validated and certified free of detectable RNase, DNase, human DNA, and molecular PCR inhibitors right out of the bulk packaging.\u003c\/p\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cp style=\"margin: 0;\"\u003e\u003cb\u003eBroad Thermal Architecture:\u003c\/b\u003e Fabricated from laboratory-grade polypropylene designed to resist thermal stress and material embrittlement, performing reliably from ultra-low vapor-phase freezing down to minus 80 C up to steam autoclaving at 121 C.\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eProduct Specifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003cp style=\"margin: 0;\"\u003e\u003cb\u003eCatalog Number \/ MPN:\u003c\/b\u003e 3471 (Cross-listed as 3471PK \/ 3471-CS \/ 3471B-PK)\u003c\/p\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cp style=\"margin: 0;\"\u003e\u003cb\u003eManufacturer \/ Brand:\u003c\/b\u003e Thermo Scientific\u003c\/p\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cp style=\"margin: 0;\"\u003e\u003cb\u003eProduct Type Closure:\u003c\/b\u003e Standard Threaded Screw Cap with O-Ring (Non-Tethered Design)\u003c\/p\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cp style=\"margin: 0;\"\u003e\u003cb\u003eColor Silhouette:\u003c\/b\u003e Natural \/ Clear\u003c\/p\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cp style=\"margin: 0;\"\u003e\u003cb\u003eMaterial Composition:\u003c\/b\u003e Premium Virgin Polypropylene (PP) Cap \/ Synthetic Elastomer O-Ring\u003c\/p\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cp style=\"margin: 0;\"\u003e\u003cb\u003eSterility Metric:\u003c\/b\u003e Non-Sterile (Certified PCR Ready and fully autoclavable for sterile workflows)\u003c\/p\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cp style=\"margin: 0;\"\u003e\u003cb\u003eCompatible Tube Formats:\u003c\/b\u003e Fits standard Thermo Scientific screw-cap microcentrifuge tubes (0.5 mL, 1.5 mL, and 2.0 mL variants)\u003c\/p\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cp style=\"margin: 0;\"\u003e\u003cb\u003eStandard Case Configuration:\u003c\/b\u003e Case of 5000 Caps total (Often distributed as smaller wholesale packs of 500)\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eKey Benefits and Applications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003cp style=\"margin: 0;\"\u003e\u003cb\u003eHigh-Throughput Bio-Banking:\u003c\/b\u003e The benchmark closure choice for securing rare genomic templates, active enzyme master mixes, and clinical protein isolates inside low-temperature mechanical freezers.\u003c\/p\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cp style=\"margin: 0;\"\u003e\u003cb\u003eCentrifugal Safety Assurance:\u003c\/b\u003e Threaded assembly stays locked tight under extreme centrifugal loads, completely eliminating the sudden pop-open hazards linked to traditional friction-fit snap caps.\u003c\/p\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cp style=\"margin: 0;\"\u003e\u003cb\u003eVolatile Solvent Preservation:\u003c\/b\u003e The compressed O-ring gasket minimizes evaporation headroom losses, protecting highly volatile reagents, organic extraction phases, and standard dilution lines from concentration drift.\u003c\/p\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cp style=\"margin: 0;\"\u003e\u003cb\u003eStreamlined Capping Automation:\u003c\/b\u003e Uniform technical exterior dimensions conform to industry standards, supporting smooth interactions with automated capping workstations and manual tube racks.\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003chr\u003e\n\u003cp style=\"margin: 0; font-size: 0.8em;\"\u003e\u003ci\u003eAll product names, logos, and brands are property of their respective owners.\u003c\/i\u003e\u003c\/p\u003e","brand":"Thermo Scientific","offers":[{"title":"Default Title","offer_id":44496974348540,"sku":"6745","price":22.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0627\/8463\/5132\/files\/thermo-scientific-centrifuge-tube-screw-caps-with-o-ring-total-of-500-caps-lab-consumablestubes-vials-and-flasks-thermo-scientific-101486.jpg?v=1713472974","url":"https:\/\/lifesciencestrading.com\/products\/thermo-scientific-centrifuge-tube-screw-caps-with-o-ring","provider":"Life Sciences Trading","version":"1.0","type":"link"}