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Set screws are compression fasteners that can be used to prevent relational motion of permanently located parts. They are typically used in electronics and for applications where space is a key concern.
Set screws feature these key characteristics:
• A hexagonal socket recessed in one end, or an external square or slotted head
• A point designed to bear against a mating part at the opposite end
• Threads extending the entire length of the shaft
HEAD TYPES

Slotted
Single slot for driving with a standard screwdriver.
Socket
Recessed drive makes screws ideal for flush mounting.
Square
Enables external wrenching of the screw. Use in environments in which grease or dirt might clog a recessed drive.
POINT TYPES
Cone
Pointed end generates highest torsional holding power in applications where parts must be permanently located.
Cup
Cup-shaped point features a conical depression for excellent holding power with slight penetration.
Flat
Minimizes shaft damage in applications where parts are frequently reset or when fastening into thin walls.
Holo-Knurl®
Trademarked ridged cup point provides exceptional holding power. Socket features ratchet locking action.
Knurled Cup
Provides more resistance to vibration than a plain cup point. Deep socket broach assures a good hex key fit.
Oval
Rounded point reduces indentation and prevents deformation of parts in applications requiring frequent adjustment.
Set Screw Information