A grub set screw is slightly more versatile than a traditional bolt in this sense, due to its ability to be driven flush with surfaces or recessed and effectively hidden from view. Instead, they’re usually threaded right to the top, and are the same diameter all the way along their length, meaning that the grub screw can be fully driven into its hole to sit flush with (or even countersunk into, depending on the application) the workpiece. As stated in the section above, the most common uses for grub screws are to join or clamp one object or component tightly against another, but in specific scenarios where the use of a more traditional nut and bolt combination isn’t ideal for various reasons. A good quality and reliable RS PRO socket screw ensures the fixing will remain strong and stable, whatever the application. You’ll nearly always need a hex drive or Allen wrench attachment to use flush-seated headless grub screws.

Brass is an alloy of copper and zinc, and the relative proportions of metals in the alloy can vary according to manufacturer specifications and the required mechanical functioning of the screws. There are various thread sizes and lengths and can be used for both industrial and personal purposes. Again, various formats of nylon hex head set screws are widely available from most suppliers and wholesalers in the UK. They’re almost always found being used in mechanical systems where two or more metal surfaces rub or press directly together, and where there isn’t room to fit a bolt or other type of protruding head between the two flush surfaces without limiting proper functionality or movement of the part(s).In this guide, we’ll look at some of the more common uses of grub screws and set screws, what the most widely used and easily available sizes and gauges of grub screws are, and how/why to choose between different manufacturing materials and end styles to get the best results for the job at hand. Although slotted varieties are sold for use with standard flat-head screwdrivers, they’re less common than hex, Torx or Allen internal-wrenching drives, because slotted varieties are inherently less robust and more easily deformed during insertion under high torque forces. Grub screw tend to be used in mechanical systems where there is not adequate space to fit protruding bolt heads or where multiple surfaces press or rub together.

We'll also discuss the most widely used sizes, gauges, and end styles of grub screws, and how to choose them based on their manufacturing materials and end styles. They offer an additional degree of plastic deformation on tightening under high torque, which helps them fit to the exact contours of the component or object being mated to, providing tighter grip (especially on uneven or rough surfaces). Because they’re often chosen to work in tight or confined spaces, or as part of more intricate assemblies, it’s common to find grub screws available in a wide range of very small sizes. They offer an additional degree of plastic deformation on tightening under high torque, which helps them fit the exact contours of the component or object being mated to, providing a tighter grip (especially on uneven or rough surfaces). The design of grub screws means they’re intended to offer this secure gripping or joining facility without the use of a nut, as opposed to the typical arrangement found with most bolts.

Grub screws, also known as set screws, are a type of fixing screw that’s most often used to join one component or part securely to another. Brass grub screws are a common material chosen for many domestic, professional and hobbyist applications, Brass grub screws for door handles are notably popular choices when it comes to securing internal ironmongery and smaller fittings. Similarly, an M5 x 150mm set screw will be 5mm in diameter across its threaded section, and 150mm long from head to end. Flat point - This is used when the lateral force is applied randomly and when threaded part has an insufficient thickness. However, if you required a more adjustable set screw that can be slightly adjusted or loosened then the oval point is the most recommended.