materials supply for various works under mgnrega- 1 stone for masonry work 2 portland cement 3 coarse sand ( zone iii ) 4 stone aggregate ( single size ) :20 mm nominal size 5 stone aggregate ( single size ) : 10 mm nominal size 6 stone aggregate ( single size ) : 40 mm nominal size 7 twisted steel / deformed bars 8 solid blocks of size 30x20x15cm 9 fine sand ( zone iv ) 10 mild steel tubes hot finished welded type 11 red oxide zinc chromate primer 12 galvanised steel j or l hooks 8 mm dia 13 bitumen washer 14 g.i. plain washer thick 15 precoated aluminium trafford sheet 0.450mm thick 16 galvanised wire mesh of average width of aperture 1.4 and nominal dia. of wire 0.63 mm 17 wire nails 18 quarry muck 19 polythene water storage tank with cover 20 pvc pipe 63 mm outer dia . 6kgf / cm2 21 pvc elbow 63 mm dia 22 pvc bend 63 mm dia 23 pvc tee 63x63x63 mm dia