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Screwthreads, Discs and Joints Manufacturer, Suppliers and Exporter in India

Jaincolab Manufacturers is leading Screwthreads, Discs and Joints 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.)

Screwthreads, Discs and Joints at JaincoLab supply the ground-glass connecting hardware for building reaction, distillation and vacuum-line assemblies, along with sintered glass discs for filtration. The range covers male and female spherical joints, single cone and socket joints, cone-with-tip, screwthread and flat-flange joints, plastic joint clips and two grades of sintered disc; female spherical joints are listed from S13 to S51 with a 100 mm shank.

Last updated: October 2026.

What are Screwthreads, Discs and Joints?

This range covers the ground-glass connecting hardware used to build up laboratory glassware assemblies — spherical, cone and socket joints in a choice of standard sizes, screwthread and flat-flange joints for secure connections, plastic joint clips to hold fittings together, and sintered glass discs used for filtration. JaincoLab's Screwthreads, Discs and Joints range is used alongside condensers, distillation heads and other Lab Glassware to build custom reaction and distillation setups.

Selected Screwthreads, Discs and Joints — Model Numbers and Specifications

ProductProduct CodeShank Length (mm)Socket Size
Joints, Spherical, FemaleJA-SDAJ-1669100S13 Capillary Bore
Joints, Spherical, FemaleJA-SDAJ-1669100S13 / S19 / S29 / S35 / S41 / S51

Other listed items in this range include Joints, Spherical, Male (JA-SDAJ-1670), Joints, Screwthread (JA-SDAJ-1671), Joints, Flat Flange (JA-SDAJ-1672), Economy Range Sintered Discs (JA-SDAJ-1673), Premium Brand Sintered Discs (JA-SDAJ-1674), Joints, Cone, Single (JA-SDAJ-1675), Joints, Socket, Single (JA-SDAJ-1676), Joints, Cone with Tip (JA-SDAJ-1677) and Joint Clips, Plastic (JA-SDAJ-1678) — full dimensional specifications for these are available on request as part of a quotation.

Applications

SettingTypical use
Research LaboratoryBuilding custom distillation, reflux and vacuum-line assemblies from standard ground-glass joints
School / College Chemistry LabSecuring apparatus connections with joint clips during practical experiments
General Bench WorkFiltration using sintered glass discs in funnels and filter assemblies

Frequently Asked Questions

Q: How is Screwthreads, Discs and Joints different from Screw Caps, Stoppers and Stopcocks?
A: Screwthreads, Discs and Joints covers the ground-glass connecting hardware — spherical, cone and socket joints and sintered discs — used to build apparatus assemblies, while Screw Caps, Stoppers and Stopcocks covers the closures and flow-control valves fitted to those assemblies.

Q: Which sizes are the female spherical joints available in?
A: The Joints, Spherical, Female (JA-SDAJ-1669) have a 100 mm shank and are listed in S13, S19, S29, S35, S41 and S51 socket sizes, plus an S13 version with a capillary bore. Male spherical joints are listed separately as JA-SDAJ-1670.

Request a Quote

Specify the joint type and size, for example Joints, Spherical, Female (JA-SDAJ-1669) in S29, or the sintered disc grade you need, add quantities and the delivery destination, and ask for a quotation.

Joints, Spherical, Female

Joints, Spherical, Female

Product Code : JA-SDAJ-1669

Female spherical glass joints with a 100 mm shank, product code JA-SDAJ-1669, listed in socket sizes S13, S19, S29, S35, S41 and S51, plus an S13 capillary bore version, for building glass apparatus.

Note: Female spherical joints, 100 mm shank, socket sizes S13 to S51 and S13 capillary bore.

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Joints, Spherical, Male

Joints, Spherical, Male

Product Code : JA-SDAJ-1670

Male spherical glass joints with a 100 mm shank, product code JA-SDAJ-1670, listed in sizes S13, S19, S29, S35, S41 and S51, plus an S13 capillary bore version, for ball-and-socket connections in glass apparatus.

Note: Male spherical joints, 100 mm shank, sizes S13 to S51 and S13 capillary bore.

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Joints, Screwthread

Joints, Screwthread

Product Code : JA-SDAJ-1671

Glass screwthread joints with a 110 mm shank, product code JA-SDAJ-1671, listed in screw thread sizes 13, 14, 18, 24, 25, 28 and 32, with minimum bores from 7.5 mm to 26.0 mm, for glassblowing.

Note: Screwthread joints, 110 mm shank, thread sizes 13 to 32, minimum bore 7.5 to 26.0 mm.

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Joints, Flat Flange

Joints, Flat Flange

Product Code : JA-SDAJ-1672

Glass flat flange joints, product code JA-SDAJ-1672, listed in five sizes: 10 mm bore with 30 mm flange, 25/55, 50/85, 75/120 and 100 mm bore with 150 mm flange, for building flanged vessels and connections.

Note: Flat flange joints in five sizes from 10 mm bore / 30 mm flange to 100 mm bore / 150 mm flange.

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Economy Range Sintered Discs

Economy Range Sintered Discs

Product Code : JA-SDAJ-1673

Economy range sintered glass discs, product code JA-SDAJ-1673, listed in diameters of 10, 20, 30, 40, 50, 60, 65 and 90 mm, each in porosity grades 0, 1, 2, 3 and 4, for fusing into filters and gas bubblers.

Note: Economy sintered glass discs, 10 to 90 mm diameter, porosity grades 0 to 4.

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Premium Brand Sintered Discs

Premium Brand Sintered Discs

Product Code : JA-SDAJ-1674

Premium brand sintered glass discs, product code JA-SDAJ-1674, listed in diameters of 10, 20, 30, 40, 50, 60, 65 and 90 mm, each in porosity grades 0 to 4, for glassblowing into filters, bubblers and supports.

Note: Premium brand sintered glass discs, 10 to 90 mm diameter, porosity grades 0 to 4.

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Joints, Cone, Single

Joints, Cone, Single

Product Code : JA-SDAJ-1675

Single ground-glass cone joints on a 110 mm shank, product code JA-SDAJ-1675, listed in 12 cone sizes: B7, B10, B12, B14, B19, B24, B29, B34, B40, B45, B50 and B55, for glassblowing and repair of jointed apparatus.

Note: Single cone joints, 110 mm shank, in 12 cone sizes from B7 to B55.

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Joints, Socket, Single

Joints, Socket, Single

Product Code : JA-SDAJ-1676

Single ground-glass socket joints on a 110 mm shank, product code JA-SDAJ-1676, listed in 12 sizes: B7, B10, B12, B14, B19, B24, B29, B34, B40, B45, B50 and B55, for glassblowing and repair of jointed apparatus.

Note: Single socket joints, 110 mm shank, in 12 sizes from B7 to B55.

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Joints, Cone with Tip

Joints, Cone with Tip

Product Code : JA-SDAJ-1677

Ground-glass cone joints with a tip on a 90 mm shank, product code JA-SDAJ-1677, listed in 10 cone sizes: B10, B14, B19, B24, B29, B34, B40, B45, B50 and B55, for glassblowing condensers, funnels and similar apparatus.

Note: Cone joints with tip, 90 mm shank, in 10 cone sizes from B10 to B55.

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Joint Clips, Plastic

Joint Clips, Plastic

Product Code : JA-SDAJ-1678

Plastic joint clips for holding ground-glass cone and socket joints together, product code JA-SDAJ-1678, listed for joint sizes B10, B14, B19, B24, B29 and B34.

Note: Plastic joint clips for B10, B14, B19, B24, B29 and B34 ground-glass joints.

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