Reduction sleeves
Reduction sleeves can be used to connect components and pipes with different threads. To make this possible, reduction sleeves have metric female threads in various sizes, which allow them to be used as adapters for structural parts with these nominal diameters. Thread reduction is also called fitting or thread fitting.

Reduction sleeves, also known as transition sleeves, reduction connectors, threaded adapters or reducers, are made of brass, steel, and other metals and are designed to withstand high pressures. They are not the same as the flexible reduction sleeves used for low-pressure water lines.
Colloquially, reduction sleeves are also called transition nuts, reducing sleeves, reducing nuts or reducers.
TITAN can supply your business with reduction sleeves made of high-quality materials in numerous sizes for many industrial applications. Simply select the appropriate amount of reduction or contact us for custom designs. We manufacture made-to-measure reduction sleeves using state-of-the-art machinery at our plant in Bergisch Gladbach.
Reduction sleeves – applications
Whether in industrial plant engineering, in cooling and heating construction, for compressed air applications or in supply engineering: Thread fitting by means of reducers is a critical aspect of all kinds of pipe connections. Reduction sleeves from 2 inches to 1 inch, 1 to ¾ inch, ½ to 3/8 inch, and 1 to ½ inch are commonly used. Brass reduction sleeves are mainly used in the field of water technology but aren’t suitable for use in water containing salt and chlorine. In this case, stainless steel reduction sleeves are preferred.

Available in many dimensions: reduction sleeves from TITAN
We supply round reduction sleeves with various female threads made of galvanized steel and stainless steel 1.4305 in common sizes from stock – with ultra-fast delivery. Order any of the variants below by 1 pm and your shipment will be dispatched the same day:
Dimension | G1 | G2 | outer diameter (mm) | Length (mm) | pu |
---|---|---|---|---|---|
M6-M8 | M6 | M8 | 13 | 40 | 100 |
M6-M10 | M6 | M10 | 16 | 40 | 100 |
M8-M10 | M8 | M10 | 16 | 40 | 100 |
M8-M12 | M8 | M12 | 16 | 40 | 100 |
M10-M12 | M10 | M12 | 16 | 40 | 100 |
M10-M16 | M10 | M16 | 22 | 40 | 50 |
M12-M16 | M12 | M16 | 22 | 40 | 50 |
Our range of Reduction sleeves
Article-No.: | Material | Finish | Dimension | C1 | C2 |
---|---|---|---|---|---|
I0000608 | Steel | Galvanized | M6-M8 | M6 | M8 |
I0000610 | Steel | Galvanized | M6-M10 | M6 | M10 |
I0000610BL | Steel | Plain | M6-M10 | M6 | M10 |
I0000810 | Steel | Galvanized | M8-M10 | M8 | M10 |
I0000812 | Steel | Galvanized | M8-M12 | M8 | M12 |
I0001012 | Steel | Galvanized | M10-M12 | M10 | M12 |
I0001016 | Steel | Galvanized | M10-M16 | M10 | M16 |
I0001216 | Steel | Galvanized | M12-M16 | M12 | M16 |
IVA00608 | Stainless steel V2A | Plain | M6-M8 | M6 | M8 |
IVA00610 | Stainless steel V2A | Plain | M6-M10 | M6 | M10 |
IVA00810 | Stainless steel V2A | Plain | M8-M10 | M8 | M10 |
IVA00812 | Stainless steel V2A | Plain | M8-M12 | M8 | M12 |
IVA01012 | Stainless steel V2A | Plain | M10-M12 | M10 | M12 |
IVA01016 | Stainless steel V2A | Plain | M10-M16 | M10 | M16 |
IVA01216 | Stainless steel V2A | Plain | M12-M16 | M12 | M16 |

Do you need reducers?
Then you will find exactly what you’re looking for in our product range. We also offer reducers in numerous designs and dimensions. These turned parts are available from stock, for example, as hexagonal reducers with male and female threads or as round reducers with two different female threads, each made of galvanized steel or stainless steel 1.4305.
About TITAN Befestigungstechnik-Großhandel GmbH
TITAN Befestigungstechnik-Großhandel GmbH has been developing and producing high-quality fastening elements for a wide range of applications in industries such as plant engineering, electronics manufacturing, electrical engineering, assembly technology and construction since 1984.
We are your reliable partner for standardized mechanical precision components such as standoffs, spacer sleeves, long nuts, brass anchors, hanger bolts and shoulder screws, pipe hangers and stud bolts. We also manufacture custom drawing parts made from free-cutting steel, stainless steel, and brass on state-of-the-art rotary transfer and CNC machines at our location in Bergisch Gladbach.
Flexibility and fast delivery times are our core strength. We offer a wide range of thread sizes and key widths in large quantities from stock. You can rely on quality products from TITAN!