GB/T 869 Countersunk Head Rivets - | Steel | Aluminum
Preparation
Drill matching holes in the components using a countersink drill bit (typically 82° or 90° included angle).
Deburr holes and ensure surfaces are clean.
Rivet Insertion
Place the rivet into the pre-drilled countersunk cavity, ensuring the head sits flush with the surface.
Setting the Rivet
Position the bucking bar firmly against the rivet tail.
Apply uniform hammering to the rivet head using a rivet gun until:
The tail expands, filling the hole via plastic deformation.
A tight interference fit is achieved.
Inspection
Verify the rivet head remains fully recessed below/level with the surface.
Check for no gap between components
Application
Mechanical Equipment & Cabinets:
Various equipment housings, protective covers, control panels, and cabinet door panels requiring smooth appearance or prevention of operator injury from protruding objects.
Automotive Manufacturing:
Body panels (especially externally visible parts like doors, hoods, roofs, and side panels) where surface flatness and aesthetics are critical.Connections of chassis and interior trim panels (requiring flush surfaces to prevent snagging on clothing or items).Streamlined component connections.
Rail Transportation:
Connections for high-speed rail, subway, and other train car bodies—including external skins, interior panels, and flooring—demanding surface smoothness, aerodynamic performance, and visual appeal.
