img

SCREW

Property Specification
Definition A type of fastener with a helical ridge (thread) used to hold objects together or position them
Material Steel (carbon, stainless), brass, aluminum, titanium, plastic
Common Types Wood screw, Machine screw, Self-tapping screw, Lag screw, Drywall screw
Head Types Flat, Pan, Round, Oval, Truss, Hex, Bugle
Drive Types Slotted, Phillips, Torx, Allen (Hex), Robertson (Square), Pozidriv
Thread Types Coarse, Fine, Machine, Self-tapping, Self-drilling
Point Types Sharp point, Flat point, Self-drilling point
Finish/Coating Zinc-plated, Black oxide, Galvanized, Chrome-plated, Painted
Sizes Varies (e.g., M2 to M20 for metric, or #0 to #14 for imperial)
Application Woodworking, metalworking, plastic assembly, electronics, construction
Installation Tool Screwdriver, Power drill, Allen wrench, Torx driver
Holding Mechanism Threads grip material, often creating a tight friction or threaded connection