Externally threaded fastener with head often used with a nut but also used in a tapped hole

Anchor, Blind, Carriage, Double end, Eye, Hex, Machine, Penta-head, Shoulder, Socket head, T-Bolt, Tension control, and U-bolt

Flat, Oval, Pan, Truss, Round, Hex, Hex Flange or Washer, Slotted Hex Washer, Socket Cap, and button

Used in all industries

Drive Type, Thread Type, Diameter, length, pitch, threads per inch, coating or plating, material, application details like seal or vibration, and strength needed i.e., tensile, clamp, and shear

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