An anvil for a surgical stapler. In at least one form, the anvil includes an elongate anvil body portion that has an upper portion and a staple forming undersurface. An anvil mounting portion is adjacent to the elongate anvil body and is configured to movably support the anvil on a portion of the surgical stapler. An anvil cap is configured to be mechanically interlocked to the upper portion of the elongate anvil body. At least one weld is provided between the anvil cap and the upper portion of the elongate anvil body portion.
