Champion Nylon Nut Inserts 8mm Stainless Steel SKU: 225726 MODEL: BSS049 Error. try again later You've successfully joined the club $ 8 .50 pack of 8 Available on orders $50 to $1500. More info × Mitre 10 MAvailable at Mitre 10 MEGA stores. Variants Marine grade 316 stainless steel. Features and benefits Hexagonal. Metric. Self-locking.