TUBULAR & SEMI TUBULAR RIVETS We only use annealed wire in coil form to manufacture rivets, thus making the final riveting process hassle free. We undertake manufacturing of rivets to any specific requirement of customers precisely according to the drawings or sample rivets provided. Solid and Semi-Tubular rivets can be completely customized as per the needs . https://www.kova.in/tubular-semi-tubular-rivets/