Posted on by Jeff Thompson

Screw drive types

Screw Head - Slotted.svg Slotted (flat or straight)
Screw Head - Phillips.svg Phillips (“crosshead”)
PH
Screw Head - Pozidrive.svg Pozidriv (SupaDriv)
PZ
Screw Head - Square External.svg Square
Screw Head - Robertson.svg Robertson (square)
Screw Head - Hex External.svg Hex
Screw Head - Hex Socket.svg Hex socket (Allen)
Screw Head - Torx.svg Torx
T & TX
Screw Head - Torx-security.png Security Torx
TS
Screw Head - Tri-wing.svg Tri-Wing
Screw Head - Torq-set.svg Torq-set
Screw Head - Spanner.svg Spanner head
(Snake-eye)
Screw Head - Triple Square.svg Triple square
XZN
Screw Head - Polydrive.svg Polydrive
Screw Head - One-way Clutch.svg One-way
Screw Head - Spline.svg Spline drive
Screw Head - Double Hex.svg Double hex
Screw Head - Bristol.svg Bristol

From Wikipedia’s series on screw drive types, which is, thankfully, an actual topic.  These are like mechanical emoticons.

Leave a Reply

Your email address will not be published. Required fields are marked *