Overview Reviews Product Description Replacement Hardware for MK450 and MK4+ Blades Attaches blades to hub - 6 Stainless Steel Bolts, 6 (SS) Washers, 6 (SS) Nyloc nuts Product Videos Custom Field Product Reviews Write a Review Write a Review × MK4 Wind Generator Blade Hardware Kit Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Email * Review Subject * Comments *