DOME NUTS TO FIT METRIC BOLTS M3,4,5,6,8,10,12,14,16,18,20mm A2 STAINLESS STEEL

A2 Stainless Steel. M3 ; thread pitch 0.5mm, spanner size 5.5mm. A2 Stainless Steel Hexagon. M4 ; thread pitch 0.7mm, spanner size 7mm. M5 ; thread pitch 0.8mm, spanner size 8mm. M6 ; thread pitch 1.0mm, spanner size 10mm.

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