RapidBolt
When 254 SMO is the right washer material
316L stainless washers suit general corrosion service, but warm seawater, brines and chloride-contaminated process streams drive pitting and crevice attack at bearing surfaces — exactly where a locking washer must grip. 254 SMO raises the pitting and crevice threshold through roughly 6% molybdenum and added nitrogen. For joints that see both chlorides and vibration, the washer material should be reviewed with the same care as the stud and nut. Send the actual exposure — temperature, chloride level, crevices and cyclic load — and we confirm whether the 254 SMO washer family, size and documentation fit the joint.