About this item Our lock nuts are made of 304 stainless steel, which have high hardness and won’t be deformed. This locknuts kit is one of the few in the market with better quality and more quantity making it a cost-efficient choice. Our locknuts are designed with nylon insert making it capable enough to replace common lock washers and hold bolts more firmly, which are highly ideal fasteners for professional users and DIYers. Total 185 pieces nylon insert lock nuts are packed in a sturdy plastic box, which allows you organize the lock nuts according to size neatly and conveniently. Besides, it can be also used as a convenient box to store other items on the go job sites. We are highly confident with our products, and I believe that you won’t regret it if you got these nice bargains:) If you have any question about our product, please feel free to contact me, and I’ll reply you as soon as possible within 12 hours (ma…