Threaded Inserts

A threaded insert is a cylindrical tube-shaped piece of metal with an internal thread. Threaded inserts are designed to be placed into existing holes to provide a threaded receptacle so that screws, bolts or other fixings can be installed. Threaded inserts with an external thread are also used to strengthen existing threads or to repair damaged threads usually in metalwork.
How to fit a threaded insert
The first step is to drill, mill tap or cut a hole of the recommended size into the material the insert will be embedded. The second step depends entirely on the type of insert, the material it will be used with and how the insert will be fitted.
Types of Threaded Insert
For plastic
Plastics are generally categorized into two main types Thermoplastic and Thermoset. These two plastics may sound similar but their physical characteristics are very different. Therefore the type of insert used is different.
• Thermoset
Thermoset plastics, due to cross-linking polymers at the curing stage enhance the materials physical and mechanical properties. This process makes thermoset plastic easier to mill and drill, so a press-fit threaded insert is better for this application.
• Thermoplastic
Threaded inserts for thermoplastic materials are more specialized and require a slightly different approach. Inserts are installed by heating the metal insert to a specific temperature. Once the desired temperature is reached the threaded insert is pressed onto the plastic. The heat from the metal melts the plastic and the insert fits into the desired position. When the plastic cools the insert is retained.
Threaded inserts for metal
Threaded inserts for metal have an external thread. The insert is simply matched by thread size and screwed into the existing threaded hole.
Threaded inserts for wood
It is possible to use both press-in and thread-in inserts in wood. If however a hardwood is being used it is advised to prepare a slightly larger hole than the insert and secure with a suitable adhesive. Hardwoods have a higher chance of cracking than other woods.
Materials and finishes
Threaded inserts are available in various materials and finishes and metric course threads to suit every application.
• Brass
• Steel
• Stainless Steel (316 & 302)
• Bright zinc plated
• Clear passivated
• Galvanised
• Plain
Thread sizes
M3, M3.5, M4, M5, M6, M8 and M10

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Nombre de résultats par page
Description Prix Thread Size Flange Diameter Fixing Hole Diameter Body Outside Diameter Body Depth Material Stainless Steel Type Finish Thickness of Material Maximum Thickness of Material Minimum
N° de stock RS 667-9841
Référence fabricantAVKALS3T-8125-7.9
MarqueAVK
22,96 €
1 Bag of 50
Sachet(s)
M8 17.4mm 13.5mm 13.46mm 10.8mm - - Plain 7.9mm 3.8mm
N° de stock RS 194-304
MarqueAVK
22,84 €
1 Bag of 50
Sachet(s)
M8 17.4mm 13.5mm 13.46mm 11.94mm - - Plain 3.8mm 0.7mm
N° de stock RS 194-427
MarqueAVK
20,03 €
1 Bag of 100
Sachet(s)
M5 10.54mm 7.6mm 7.52mm 8mm - - Plain 3.3mm 0.5mm
N° de stock RS 667-9839
Référence fabricantAVKALS3T-580-5.7
MarqueAVK
22,96 €
1 Bag of 100
Sachet(s)
M5 10.54mm 7.6mm 7.52mm 8mm - - Plain 5.7mm 3.3mm
N° de stock RS 667-9848
Référence fabricantAVKALS3T-610-6.6
MarqueAVK
35,49 €
1 Bag of 100
Sachet(s)
M6 12.7mm 10mm 9.91mm 9.65mm - - Plain 6.6mm 4.2mm
N° de stock RS 194-411
MarqueAVK
15,93 €
1 Bag of 100
Sachet(s)
M4 9.91mm 6.75mm 6.73mm 7.75mm - - Plain 2mm 0.5mm
N° de stock RS 194-376
MarqueAVK
15,03 €
1 Bag of 100
Sachet(s)
M5 8.64mm 7.6mm 7.52mm 8mm - - Plain 3.3mm 0.5mm
N° de stock RS 194-382
MarqueAVK
19,44 €
1 Bag of 50
Sachet(s)
M8 15.11mm 13.5mm 13.46mm 11.94mm - - Plain 3.8mm 0.7mm
N° de stock RS 667-9854
Référence fabricantAVKAKS3T-580-5.7
MarqueAVK
19,14 €
1 Bag of 100
Sachet(s)
M5 8.64mm 7.6mm 7.52mm 8mm - - Plain 5.7mm 3.3mm
N° de stock RS 667-9851
Référence fabricantAVKAKS3T-8125-7.9
MarqueAVK
21,32 €
1 Bag of 50
Sachet(s)
M8 15.11mm 13.5mm 13.46mm 10.8mm - - Plain 7.9mm 3.8mm
N° de stock RS 194-405
MarqueAVK
12,03 €
1 Bag of 100
Sachet(s)
M4 7.87mm 6.75mm 6.73mm 7.75mm - - Plain 2mm 0.5mm
N° de stock RS 667-9835
Référence fabricantAVKALS3T-470-3.3
MarqueAVK
20,30 €
1 Bag of 100
Sachet(s)
M4 9.91mm 6.75mm 6.73mm 7.75mm - - Plain 3.3mm 2mm
N° de stock RS 194-398
MarqueAVK
21,05 €
1 Bag of 100
Sachet(s)
M6 11.56mm 10mm 9.91mm 9.65mm - - Plain 4.2mm 0.7mm
N° de stock RS 194-326
MarqueAVK
25,26 €
1 Bag of 100
Sachet(s)
M6 12.7mm 10mm 9.91mm 9.65mm - - Plain 4.2mm 0.7mm
N° de stock RS 667-9845
Référence fabricantAVKAKS3T-470-3.3
MarqueAVK
16,40 €
1 Bag of 100
Sachet(s)
M4 7.87mm 6.75mm 6.73mm 7.75mm - - Plain 3.3mm 2mm
N° de stock RS 667-9857
Référence fabricantAVKAKS3T-610-6.6
MarqueAVK
27,33 €
1 Bag of 100
Sachet(s)
M6 11.56mm 10mm 9.91mm 9.65mm - - Plain 6.6mm 4.2mm