Set Screw Points

Socket Setscrew

Socket set screws are used to generate a compressive load, the direct opposite to a fastener tensile load that we see with the installation of bolts and screw. Their purpose is to hold parts beneath the cup or points, and withstand any rotational movement or lateral displacement and to resist vibration.

The holding power of set screws is determined by their seating torque, accordingly socket set screws are made of the highest class or grades and have internal hexagon drives. Lower tensile set screws have slotted drives, and are traditionally called grub screws.

Socket set screws can be specified by either their hardness this is normally 45H or their class that is normally 14.9

Socket Set Screws        

   Product         Applications

Cup Point Setscrew  

Cup points are concave Hollowed ends and are the most commonly used point style. Used when the digging in of the point is not undesirable, leaves a ring dentation mark.

Dog Point Setscrew 

Dog point is a Flat end with the threads stopping short of the end with the end fitting into a circular locating hole ensuring alignment

Cone Point Setscrew  

Cone Pointed end, this type of point generates the highest torsional holding power and is typically used for a permanent connection. It can also act as an adjuster or a pivot point

Knurled Cup point Setscrew

Knurled cup point is a cup point with knurls' cut on the outside of the cup for improved locking and to resist vibration by digging into the butting surface

Oval Point Setscrew

Oval or Rounded end set screw is typically used when frequent adjustment is required. The oval end reduces indentation and can butt at different angles. 

Flat Point Setscrew

Flat point causes little damage to the shaft and is used when frequent adjustment is required, flat points will align against ground flats and can be used against a thin wall or soft material.

Thrust Point Setscrew 

Thrust point is a rounded point the allows movement at the base of the set screw, thrust points often fit into a mating cup

Set Screw Tips  

Tips at the end of the set screw are in various soft materials like plastic and copper are designed to reduce damage to the surface they butt against  

Plunger Point Setscrew   

Set screw containing a spring and ball bearing, used 

Socket Set screw History

Fastener socket screw

fixings and fasteners including Allen screws

socket screwed product information at fastenerdata