3/8" x 0.68"OD Split Lock Washer, 18-8 (304) Stainless Steel Spring Lock Washer 50PCS

Split lock washers can help to prevent nuts or bolts from loosening by adding a spring tension force along with split edges that are designed to dig into the nut and material being fastened.

Split lock washers may not be as effective on extremely hard metals as the edges at the split cannot dig in to the surface as well.

Product Name: Split lock washers Brand: Instockbolts Material: 304 stainless steel Thread specification: American thread Dimension：3/8" This split lock washer provides a circular bearing surface with offset split ends which help bite into the mating material to provide a locking feature when tightened beneath a nut.