Another advantage of the grub screw is more torque may be applied than traditional fasteners. Its uniform diameter along its length means the preservation of consistent threading as it enters. Once it seats in place, it may require some difficulty to remove. This holds especially true if the grub screw corrodes or the driven head suffers damage due to improperly applied torque. Sizes Stainless steel: All DIN, GB Standard and part ASNI standard stainless steel Grub Screws, Example: ISO7380, DIN7981, DIN7982, DIN916, DIN913, DIN7985, DIN912

The grub screw, also known as a set screw, secures the connection between two components or parts. In this article, you’ll learn the purpose of the grub screw, commonly available sizes, applications, and alternatives. Easy to Install - Grub screws are easy to install and require only a threaded hole and a hex wrench. They do not require any additional hardware, such as nuts or washers, which can simplify the installation process. The tip is normally located into a groove in a shaft and allows the shaft to rotate whilst retaining the part in place. Space-Saving - Grub screws can be used in tight spaces where other fasteners might not be practical. This makes them a good choice for applications where space is limited, such as in small machinery or equipment.If it won’t budge and needs to be drilled out, start by taking an awl or centre punch and using it with a hammer to make a small indentation in the visible end of the grub screw - this will help reduce the risk of the drill bit from slipping or wandering while you drill through the metal Besides aesthetics, another advantage of using grub screws (with no leading or trailing edge exposed at the head end) is that they can often offer better resistance to weathering and corrosion as a result. They can also be driven with considerably more torque force than traditional screws, as the uniform diameter right the way along the full length of the grub screw shaft means that they don’t begin to split the hole apart as they go in further. Instead, the the surrounding material into which the set or grub screw is driven will work to reinforce the fastening as it goes in. Knurled cup point grub screws- These grub screws have a cup-shaped indentation on the end, similar to cup point grub screws. However, the surface of the indentation is knurled, which provides an even stronger grip. Knurled cup point grub screws are commonly used in applications where a high level of torque is required, such as in automotive engines or heavy machinery. Rely on Friction - Grub screws rely on friction to secure the object, which can lead to loosening over time. This can be a problem in applications where vibration or movement is present.

Self-tapping and drilling screws are available in steel, carbon steel, and stainless steel. Gauge sizes range from 3.5 to 6.3mm, and lengths range from 12 to 120mm. The knurled cup point is an improvement on the cup point as it has serrations on its tip and its flat end. Those listed above are the most popular types, but there are other more specialist and less popular screw types available, such as: Typical examples of uses for grub screws might include any situation where one object or component needs to clamp to another tightly via friction, but where protruding parts of the fastener would interfere with smooth functioning of the items in question. Grub screws for this purpose are especially widely used in architectural ironmongery, and are a very common feature found wherever door handles are attached to spindle shafts.When choosing the thread, consider the density of the timber. It’s best to use fine threads for hard timber and coarse threads for soft timber. Grub screws, also known as set screws, are a type of threaded fastener that is commonly used in mechanical applications. Grub screws are often used to secure one object within another, such as a shaft or a gear to a hub, or to prevent a sliding part from moving. Grub screws come in a wide variety of sizes and dimensions, and have a number of advantages and disadvantages that should be considered when choosing them for a particular application. Grub screws are usually used to retain parts such as gears, collets & collars to such as gear shafts, etc. and the hardened, high tensile steel type is recommended. Although grub screws are made with both Allen and Slotted type head styles, the Allen type is recommended due to the weakness of the slotted type. Surface Damage - Grub screws can cause surface damage to the object they are securing if they are not installed correctly. Masonry screws (also called concrete screws) are self-tapping screws that are perfect for fixing materials directly into stone, masonry, and concrete without needing wall plugs. They have deep, wide threads, ensuring a secure fit once installed. Often used to fix timber, uPVC frames, pipes, and cable housing into masonry. The type of screw heads available for masonry screws include countersunk, double self-countersunk, flange, flat, pan, raised, and wafer.