S-94708A128 0.12" ID x 0.25" OD Bonded Sealing Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance from hot-dipped galvanized steel construction, extending service life in harsh environments.
• Reliable environmental sealing with a bonded neoprene rubber seal (Durometer 65A) that prevents moisture and contaminant ingress.
• Wide operational temperature tolerance from -40°F to 250°F, ensuring performance stability in varying climate conditions.
• Precise fit for No. 4 screws with a 0.12" ID and 0.25" OD, providing secure fastening and vibration resistance.
• Enhanced assembly integrity through the metal-to-rubber bonded design, which prevents seal separation under stress.
• Compliance with global environmental standards including RoHS 3 and REACH, ensuring safe use in regulated industries.
• Consistent thickness range (0.130-0.165") for uniform compression and reliable sealing in repetitive applications.

Professional Applications & Engineering Value

This metal bonded washer integrates a durable hot-dipped galvanized steel base with a neoprene rubber seal to address common industrial challenges like fluid leakage, corrosion, and thermal expansion. The black neoprene seal (Durometer 65A) offers excellent compression set resistance, maintaining a tight seal around No. 4 screw fasteners even under dynamic loads. Ideal for outdoor equipment, electrical enclosures, and automotive assemblies, the washer’s bonded design eliminates the risk of seal dislodgement, while the galvanized coating provides long-term protection against rust. Its ability to perform in temperatures from -40°F to 250°F makes it a versatile choice for applications exposed to seasonal temperature swings, ensuring dependable performance without frequent replacements.

Specification Summary & Compliance

This washer features an ID of 0.12", OD of 0.25", and thickness range of 0.130-0.165", designed specifically for No. 4 screw applications. It conforms to inch-based measurement standards and is manufactured with a hot-dipped galvanized steel body and neoprene seal (Durometer 65A). The product is fully RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, meeting stringent environmental and safety regulations for industrial components.