A2 Stainless Steel. Thread size ~ 3mm. Thread pitch ~ 0.5mm.
WING NUTS TO FIT METRIC BOLTS & SCREWS A2 STAINLESS STEEL M3 M4 M5 M6 M8 M10 M12
WING NUTS BUTTERFLY HAND NUT DIN 315 A2 STAINLESS STEEL M3 M4 M5 M6 M8 M10 M12
M3 M4 M5 M6 M8 M10 M12 WING NUTS BUTTERFLY NUT TO FIT BOLTS SCREWS ZINC PLATED
WING NUTS WHITE NYLON BUTTERFLY NUT TO FIT BOLTS & SCREWS M3 M4 M5 M6 M8 M10 M12
M3 (3mm�) M4 (4mm�) A2 Stainless Steel Hex Head Fully Threaded Bolts + Nuts
M3 / 3mm ZINC MACHINE POZI PAN HEAD SCREWS BOLTS WITH FULL NUTS & THICK WASHERS