Rapid no 140 precision cut flat wire staple are made from high performance stainless steel for strength and durability flat wire staples have a larger holding area against the material making it ideal for thin plastic or insulation stainless steel wire classification class 2 aisi 304 ideal for outdoor use or use in humid areas type 140 stainless steel size 10mm leg length quantity 650 for use with the rapid r44 r64 r34 ms840 alu 740 r211 r11 r54 e tac csn140 and esn114 tackers