Concertina 12″, 14″, 15″, 16″, 18″, 24″, 30″ Birmingham Barbed Tape Ltd. produces the above (depending on the size of the coil) in options of 3, 5, 7 or 9 clips. Options of 31, 33, 51 and 56 spirals are available or alternatively, any spiral number the client requires to create a unique product to the buyer’s need. Again, these sizes and spiral options are available in either stainless steel strip over stainless steel core wire (see steel specification attached). Stainless steel strip over galvanised core wire of the least cost option of galvanised strip over galvanised core wire. Double Concertina 30″/24″ Each cluster of barbs to be four needle sharp barbs on 4″ centres, each barb to measure 2,4″ in length. Adjacent coil loops shall be alternatively clipped together and attached at 3 points of approximate equal spacing around the coil diameter. Length 20′ per roll.
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