Fibre Rush Tacks: Also called Fibre Rush Nails, Fibre Tacks are nails that are 1/4" long. Fibre Rush Tacks are required to attach certain material to the frame of a chair seat. Weaving materials to pair with Fibre Rush Tacks include Danish Cord, Shaker Tape, Fibre Rush, Natural Rush, Seagrass, & Splint. They are sold in 12 packs and 100 packs.