RPI RPH190 1/2” External Tooth Washer

Yes, the stainless steel construction provides excellent corrosion resistance. This ensures long-lasting durability and reliability, even when used in demanding shop environments where moisture or chemical exposure is common.

Absolutely. The external teeth design is specifically engineered to bite into mating surfaces. This provides a strong, reliable tensioning grip that helps prevent bolts and screws from vibrating loose over time.

Each order contains 25 individual washers. This bulk quantity is ideal for stocking up your workshop, ensuring you have enough hardware on hand for multiple assembly or maintenance projects.

Yes, they are precisely sized at 1/2 inch to ensure a secure fit with standard 1/2-inch diameter bolts and screws, making them a dependable choice for your hardware applications.

Yes, for more comprehensive maintenance needs, this component is also available as part of the Lockwasher Kit (RPI Part #RPK413), which includes a broader selection of hardware.

They are perfectly suited for general shop maintenance and equipment repair. Their robust build is designed to handle the typical demands of professional workspaces and hardware assembly tasks.

Yes, these are Factory New parts supplied by RPI, built to meet high standards for quality and performance required in professional repair and equipment assembly.

They are ideal for use with 1/2-inch bolts and screws where locking action is required. They are designed to sit perfectly between the fastener head and the mating surface for maximum security.

Yes, this is part of the RPI General Shop Aids line. These washers are essential components for technicians and hobbyists who frequently perform assembly, maintenance, or fastening tasks.

Yes, the 1/2-inch nominal diameter is a standard specification. This makes these washers an excellent and reliable replacement part for existing hardware setups that require a consistent, secure locking profile.