S-95481A032 0.171" ID x 0.51" OD Finishing Washers

Key Features & Benefits at a Glance

• Superior Chemical Resistance: Made from durable Nylon plastic, this washer resists corrosion from oils, solvents, and many chemicals, ensuring long-term reliability in harsh environments.
• Precision Fit for No. 8 Screws: With an exact 0.171" ID, it provides a secure, flush fit, preventing loosening and maintaining assembly integrity.
• Wide Temperature Tolerance: Performs reliably in extreme conditions, from -40°F to 180°F, making it suitable for both indoor and outdoor applications.
• Optimal Surface Flushness: The 82° countersink angle allows screw heads to sit perfectly flush, reducing snagging and improving safety and aesthetics.
• Excellent Mechanical Strength: Rockwell R120 hardness offers a robust balance of toughness and flexibility, resisting deformation under load.
• Broad Compatibility & Coverage: A large 0.51" OD distributes load effectively, protecting surfaces and increasing joint stability.
• Environmentally Compliant: RoHS 3 compliant for use in regulated industries, ensuring safety and meeting global environmental standards.

Professional Applications & Engineering Value

This Nylon countersunk washer is engineered to solve critical challenges in industrial applications where metal fasteners are unsuitable. Its non-conductive and corrosion-resistant Nylon material prevents galvanic corrosion and electrical interference, making it ideal for electrical enclosures, automotive assemblies, and marine equipment. The precise 82° countersink angle and inch system dimensions ensure a perfect, flush fit with No. 8 screws, eliminating protrusions that can cause injury or equipment damage. This design is crucial in applications requiring smooth surfaces, such as in consumer electronics, machinery panels, and aerospace components. The washer’s ability to maintain performance across a wide temperature range from -40°F to 180°F provides reliability in volatile environments, reducing maintenance needs and downtime.

Specification Summary & Compliance

This washer features an ID of 0.171" and OD of 0.51" with an 82° countersink angle, designed specifically for No. 8 screw sizes in the inch measurement system. It is manufactured from Nylon plastic with a Rockwell R120 hardness and is compliant with RoHS 3 (2015/863/EU) regulations, ensuring it is free from hazardous substances. The product is suitable for use within a temperature range of -40°F to 180°F, meeting requirements for various industrial and commercial applications.