Ensure a secure fastening with this Internal Tooth Lockwasher. Made of durable 316 Stainless Steel, it provides reliable performance in demanding environments. With an outside diameter of .312 inches and a thickness of .02 inches, it is suitable for various applications. The internal tooth design offers enhanced grip and prevents loosening of fasteners. Featuring an inside diameter of .146 inches and a hole size of #6, it is compatible with corresponding screws and bolts. Rest assured of its compliance with RoHS regulations for environmentally friendly production. Trust this lockwasher for efficient and effective fastening solutions.