Click to expand Tap to zoom Armstrong 6978 & 6979 Set Clamp Screw & Nut Assembly by Armstrong Sale $176.00 SKU A6978_6979-SET 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity Add to cart Armstrong Clamp Screw & Nut Assembly Armstrong Part # 6978 & 6979 SET