Rivet A4

A4 rivets are manufactured from stainless austenitic steel containing chromium, nickel and molybdenum. These material properties make the rivets a popular choice in shipbuilding.

The material is resistant to aggressive substances, vibration and impact loads. A4 fasteners do not corrode on contact with acids, chlorine, ammonia or seawater.

Stainless A4 rivets are available in several design variants:

• blind rivet consists of a sleeve with a mandrel;
• drive rivet is a smooth shank with a head;
• hollow rivet with internal thread serrations is used for countersunk fastening.

When joining elements with an A4 rivet, the surface remains smooth. The fastener’s head sinks into the base material, filling the prepared hole, or is installed flush with the part’s surface. Installing rivets requires access to the structure from one side only.

Rivet A4 is used for joining non-weldable materials, reinforcing facade structures, and strengthening metal panels.