A set screw is a threaded fastener that is typically used to hold a sleeve, collar or gear on a shaft to prevent relative motion. It is a threaded member that normally does not have a head. Unlike most other threaded fasteners it is basically a compression device normally used to generate axial thrust. Various socket types are provided to allow the set screw to be rotated. These types include hexagon socket, fluted socket, screwdriver slot and square head. Various point designs are available (the part of the set screw that rotates against the shaft being secured) and include: Cup - Hollowed end, is the most commonly used point style. Used when the digging in of the point is not undesirable. Cone - Pointed end, this type generates the highest torsional holding power and is typically used for a permanent connection. Oval - Rounded end that is typically used when frequent adjustment is required. The oval end prevents/reduces indentation. Flat - Cause little damage to the shaft and are used when frequent adjustment is required. Dog - Flat end with the threads stopping short of the end with the end fitting into a hole.
A small screw in the shank of a knob that is tightened to fix the knob on the spindle. Old set-screws varied widely in diameter and thread count.
n. a screw used to fasten a component in a fixed position relative to another component
The small screw that secures the door knob or lever to the spindle.
A machine screw with no head usually used to secure parts on a shaft.
Knurled-edge screw used to hold a glass shade tight in the fitter
Threaded machine screw with flush head normally used to adjust tension or tighten movable parts on shafts.
a socket head screw, which is screwed tight against a key or shaft in order to fix a sprocket or gear on that shaft with pressure and friction.
A small, gnurled screw that is finger-tightened to secure a shade or chimney into it's holder.
The small allen screw used to hold the tires and gears on the axle. See allen screw.
(n) A mechanical threaded fastener, with or without a head, used to prevent rotation or movement between parts, such as a shaft and a collar. Set screws have special types of points for different applications.
A set screw, also called a grub screw in British English, is a type of screw generally used to secure an object within another object. The set screw passes through a threaded hole in the outer object and is tightened against the inner object to prevent it from moving relative to the outer object. It exerts its clamping force through the bottom tip that projects through the hole rather than with a larger head that remains outside.