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Welcome To British Tools & Fasteners

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GRUB SCREWS

 Grub Screw Tip Types

We carry grub screws with CUP POINTS only, although we may be able to source any of the types below. Please view the 2 categories at the bottom of the page to see our inventory.

Grub Screws

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.

 Flat Point

The flat point tip type is the simplest and least expensive type available and is the one that is most commonly use on model cars. For general use it is fine, but the bottom threads can deform when the grub screw is tightened which can make disassembly difficult.

 Domed Point

The domed point tip type is an improvement on the flat point type in that the threads don't deform upon tightening of the grub screw. There is also an increase in point pressure due to the reduced tip contact area.

Cone Point

The cone point tip type can be used in a couple of different situations. The pointed tip can either located into a machined depression or it can make and indentation into a softer material. It offers better holding power and increased point pressure.

Cup Point

The cup point tip type is an improvement on the cone point with regard to its ability to create an indentation into the surface it is fastened against.

Knurled Cup Point

The knurled cup point is an improvement on the cup point as it has serrations on its tip and its flat end.

Dog Point

The tip is normally located into a groove in a shaft and allows the shaft to rotate whilst retaining the part in place.

Reprinted with kind permission from www.rctek.com

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