Screw Caps

Screw Caps, Septa & Liners for Laboratory Vials – Wide Range Available in NZ

Discover the trusted selection of screw caps, septa, and vial liners at MicroAnalytix NZ, your local source for premium laboratory consumables. Designed for secure sample storage, instrumental analysis, and chromatography, our collection includes a wide variety of Screw thread caps, Crimp Caps, Snap Top Caps, GC Septa and metal caps sourced from trusted brands like JG Finneran, Macherey-Nagel, and MicroScience.

Extensive Range of Screw Caps Sizes

We offer one of the most comprehensive selections of screw caps in NZ, with compatibility across virtually all standard vial neck sizes:

Sizes: 8mm, 9mm, 10mm, 13mm, 15mm, 17mm, 18mm, 20mm, 24mm

Thread Sizes: 8-425mm, 9-425mm, 10-425mm, 13-425mm, 15-415mm, 15-425mm, 18-400mm, 20-400mm, 22-400mm, 24-400mm, 24-414mm

These screw thread caps ensure tight, reliable sealing for sample integrity during transport, storage, and analysis.

Screw Cap Types to Fit Your Lab Needs

Our selection includes both general-use and specialty screw cap options:

• Magnetic Seals
• Polypropylene Open Hole Caps
• Solid Top Polypropylene Caps
• R.A.M.™ Series: Smooth Cap, Ribbed Cap, Magnetic Cap, Smooth PP Open Hole Cap, Ribbed PP Open Hole Cap
• Top Seal™ Closures
• Ribbed/Smooth Thermoset Solid Top Caps

Each cap is compatible with a variety of septa (e.g. PTFE/Silicone, PTFE/Rubber, slit septa) to suit a wide range of analytical methods, including GC and HPLC.

Colour Options for Easy Identification

Our screw caps are available in a broad colour palette to suit sample identification systems:

Black, White, Blue, Silver, Green, Red, Yellow, Natural, Transparent, Pink, and Orange

Whether you're equipping a GC, HPLC, or LC-MS lab, or need dependable vial caps for long-term storage, our collection of lab-grade caps and septa ensures compatibility, performance, and value. Whether you're searching for black screw caps NZ, metal cap options, or screw cover caps NZ, MicroAnalytix has you covered with premium quality, local support, and fast delivery.

Browse our full range of screw caps and sealing solutions today to find the perfect fit for your lab's needs.