Overview Reviews Product Description IMPA 730663 Malleable cast iron nut No. 310 galvanised, ½" BSP Product Videos Custom Field IMPA Code 730663 Product Reviews Write a Review Write a Review × IMPA 730663 Malleable cast iron nut No. 310 galvanised, ½" BSP Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Email * Review Subject * Comments *