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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. You can find out more in our [threaded inserts guide](/web/content/discovery/ideas-and-advice/threaded-inserts-guide). **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 InsertFor 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.• ThermosetThermoset 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.• ThermoplasticThreaded 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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Threaded Inserts, Threaded Bushing, for Wood | RS

Threaded Inserts

Buy M6 Threaded Inserts. Browse our latest M6 Threaded Insert offers. Free next day delivery.

M6 Threaded Inserts | RS

<p>An M6 threaded insert is a cylindrical tube-shaped metal fixing with an internal thread. They are inserted into an existing hole which provides a threaded receptacle so that screws, bolts, and other threaded fixings can be installed. M6 Threaded inserts are available in a range of fixing hole diameters and body depths to suit a variety of metalwork and panel building applications.</p><p>RS offer a range of high-quality M6 inserts from leading brands including AVK, Bollhoff, POP, and of course RS PRO.</p><h2>How to fit a threaded insert</h2><p>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.</p><h2>What material are M6 threaded inserts made of?</h2><p>Our M6 inserts are available in brass, steel, or stainless steel (316 and 302 grade). Finishes can be plain, galvanized, or bright zinc plated.</p>

Buy M8 Threaded Inserts. Browse our latest M8 Threaded Insert offers. Free next day delivery.

M8 Threaded Inserts | RS

<p>An M8 threaded insert is a cylindrical tube-shaped metal fixing with an internal thread. They are inserted into an existing hole which provides a threaded receptacle so that screws, bolts, and other threaded fixings can be installed. M8 Threaded inserts are available in a range of fixing hole diameters and body depths to suit a variety of metalwork and panel building applications.</p><p>RS offer a range of high-quality M8 inserts from leading brands including AVK, Bollhoff, and POP.</p><h2>How to fit a threaded insert</h2><p>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.</p><h2>What material are M8 threaded inserts made of?</h2><p>Our M8 inserts are available in steel. Finishes can be plain or galvanized.</p>

Buy from our selection of threaded inserts from Böllhoff. At RS, we strive to give you the best offers from our supplier and to promptly deliver in the shortest time.

Böllhoff Threaded Inserts | RS

Buy our range of brass threaded inserts. Browse our latest threaded inserts offers. Don't miss out on our latest deals!

Brass Threaded Inserts | RS

Shop our range of threaded inserts. Browse our latest offers for threaded inserts. Don't miss out on our latest deals!

M3 Threaded Inserts | RS

Buy our range of m5 threaded inserts. Browse our latest threaded inserts offers. Don't miss out on our latest deals!

M5 Threaded Inserts | RS

M4 Threaded Inserts | RS

Steel Threaded Inserts | RS

Buy from our selection of threaded inserts from Avk. At RS, we strive to give you the best offers from our supplier and to promptly deliver in the shortest time.

Avk Threaded Inserts | RS Components

Buy from our selection of threaded inserts from Pop. At RS, we strive to give you the best offers from our supplier and to promptly deliver in the shortest time.

Pop Threaded Inserts | RS Components

Please browse our range of Pramet Threaded Inserts at RS, our aim is to give you the best offers with free next day delivery.

Pramet Threaded Inserts | RS

<p>Explore Pramet's quality threaded inserts designed for precision and reliability.</p><h2>What is a Threaded Insert?</h2><p>A threaded insert is a cylindrical tube-shaped piece of metal with an internal thread and have several alternative names such as Screw Thread Inserts, Insert Nut fixings and Bolt Threads.</p><p>Pramet 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 into walls or other materials like metal, wood, or plastic. Threaded inserts with an external thread are also used to strengthen existing threads or to repair damaged threads usually in metalwork.</p><p>To read more about Threaded Inserts, visit our guide:<a href="https://uk.rs-online.com/web/content/discovery/ideas-and-advice/threaded-inserts-guide">A Complete Guide to Threaded Inserts</a></p><h3>Are Threaded Inserts Industrial Fasteners?</h3><p>Inserts allow for further insertion of screws and bolts which makes them a must-have in toolboxes for builders, carpenters, manufacturers, and engineers, not just for larger industrial projects! They are often used in:</p><ul><li>Milling</li><li>Ramping</li><li>Repairing holes</li><li>Extending the working life of a drilled hole by minimising wear and tear. They are used when the material is either too strong, too thing or too weak for direct insertion of screws and bolts.</li></ul><h4>Check your sizes.</h4><p>Whether inserted into wood or metal, a threaded insert needs to match the diameter and threading of the screw or bolt that it will host.</p>

Böllhoff Threaded Inserts

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