Screw Caps, Stoppers and Stopcocks Manufacturer, Suppliers and Exporter in India

Jaincolab Manufacturers is leading Screw Caps, Stoppers and Stopcocks Manufacturer,and supplier and Exporter in India, Algeria (Algiers), Angola (Luanda), Argentina (Buenos Aires), Armenia (Yerevan), Australia(Canberra), Austria (Vienna), Bahrain (Manama), Bangladesh (Dhaka), Bhutan (Thimphu), Bolivia (Sucre), Botswana (Gaborone), Brazil (Brasília), Brunei (Bandar Seri Begawan), Montenegro (Podgorica), Morocco (Rabat), Mozambique (Maputo), Myanmar (Naypyidaw), Namibia (Windhoek), Nepal (Kathmandu), New Zealand (Wellington), Nigeria (Abuja), Oman (Muscat), Palestine (Ramallah), Panama (Panama City), Papua New Guinea (Port Moresby), Paraguay (Asunción), Peru (Lima), Philippines (Manila)¸ Portugal (Lisbon), Qatar (Doha), Rwanda (Kigali), Saudi Arabia (Riyadh), Senegal (Dakar), Serbia (Belgrade), Sierra Leone (Freetown), Slovakia (Bratislava), South Africa (Cape Town) (Pretoria) (Bloemfontein), South Sudan (Juba), Spain (Madrid), Sri Lanka (Sri Jayawardenepura Kotte) (Colombo), Sudan (Khartoum), Syria (Damascus), Tanzania (Dodoma), Thailand (Bangkok), Togo (Lomé), Tonga (Nuku'alofa), Trinidad and Tobago (Port of Spain), Tunisia (Tunis), Turkey (Ankara), Turkmenistan (Ashgabat), Uganda (Kampala), United Arab Emirates (Abu Dhabi), United Kingdom (London), United States (Washington, D.C.)

Screw Caps, Stoppers and Stopcocks from JaincoLab are the closures and flow-control fittings that seal and regulate flow on burettes, separating funnels and other laboratory glassware. Stopcocks come in straight-through, valve-type, double-oblique, T-bore and high-vacuum patterns with PTFE or glass keys in borosilicate barrels, alongside plastic caps, PTFE washers, rubber rings and cap fittings.

Last updated: October 2026.

What are Screw Caps, Stoppers and Stopcocks?

This range covers the caps, rubber rings, closures and flow-control stopcocks used to seal and regulate flow on laboratory glassware. JaincoLab's Screw Caps, Stoppers and Stopcocks range includes straight-through, valve-type, double-oblique, T-bore and high-vacuum stopcocks in borosilicate glass with either PTFE or glass keys, together with plastic caps, PTFE washers and cap fittings, for use with burettes, separating funnels and other Lab Glassware.

Selected Screw Caps, Stoppers and Stopcocks — Model Numbers and Specifications

Other listed items in this range include Plastic Cap (JA-SCSAS-1651), PTFE Washer (JA-SCSAS-1652), Rubber Ring (JA-SCSAS-1653), Cap Fittings (JA-SCSAS-1654), Stopcocks, Glass Key, Straight Through (JA-SCSAS-1657), Burette Stopcocks, Glass Key, Straight Through (JA-SCSAS-1659), Valve Type Stopcocks (JA-SCSAS-1660/1661), Double Oblique Stopcocks (JA-SCSAS-1662/1663), T Bore Stopcocks (JA-SCSAS-1664/1665) and High Vacuum Stopcocks (JA-SCSAS-1666/1668) — full dimensional specifications for these are available on request as part of a quotation.

Applications

Frequently Asked Questions

Q: How is Screw Caps, Stoppers and Stopcocks different from Screwthreads, Discs and Joints?
A: Screw Caps, Stoppers and Stopcocks covers closures and flow-control valves such as burette and vacuum stopcocks, while Screwthreads, Discs and Joints covers the ground-glass spherical, cone and socket joints used to connect apparatus together.

Q: What is the difference between a PTFE-key and a glass-key burette stopcock?
A: The Burette Stopcocks, PTFE Key, Straight Through (JA-SCSAS-1658) have a self-lubricating PTFE key that needs no stopcock grease, with interchangeable keys held by a plastic screw-thread retaining device and a 1:10 taper. A glass-key straight-through version (JA-SCSAS-1659) is also listed.

Request a Quote

To price PTFE-key burette stopcocks (JA-SCSAS-1658), High Vacuum Stopcocks (JA-SCSAS-1666) or closures, share your item list with the key type, quantities and delivery destination.