Bolt Base 2mm A2 Stainless Steel Grub Screws Hex Socket Set Screw Cup Point DIN 916 M2 X 4-10

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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). This will depend on the brand and model, and again on the exact type of screw being used for any given application. This is especially the case if the drive recess has been damaged during insertion, or where corrosion has occurred around the threads.

Grub Screws, Set Screw, Security Screws | RS - RS Components

United Kingdom (Deutsch, English) (Nederlands, français, English) (Português) (Български) (English, français) (简体中文, English) (čeština, English) (dansk, English) (eesti keel) (suomi, English) (français, English) (Deutsch, English) (magyar, English) (English) (English) (Italiano,English) (한국어) (latviešu) (lietuvių k.Grub screws are commonly used to secure a pulley or a gear to a shaft or for attaching a handle or cam to a spindle. Hex grub screws provide a very secure, non-slip and deformation-resistant drive socket for seating grub and set screws with high torque forces. 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.

Grub Screws | Farnell UK M3 Grub Screws | Farnell UK

The most obvious point of distinction between grub screws and other types of standard screws and bolts is that true grub screws tend not to feature a protruding head. Brass is prized as a material in applications where low friction between moving parts is required (such as locks, door handles, gears and bearings), many of which are jobs commonly associated with grub and set screws as we’ve already seen. 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. The most common feature between all variants is that they all are headless, fully threaded screws that feature a hexagonal drive. Hex heads are by far the most common type of drive style from both grub and set screws, whether it’s an internal recessed drive socket (as in a true grub screw) or a protruding head on a set screw (more similar to a familiar standard bolt, but with full threading of the shaft).The “M” designation for metric screws indicates the outer diameter of the screw in millimetres, so for an M2 screw, the outer diameter is 2mm.