S-3118N14 0.188" ID x 0.75" OD Finishing Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance in harsh environments thanks to 316 stainless steel construction
• Optimal flush-mounting for a smooth, professional finish with the precision 82° countersink angle
• Enhanced joint durability and load distribution from a Rockwell B83 hardness rating
• Perfect fit and secure fastening for No. 8 screws with a precise 0.188" inner diameter
• Reliable surface coverage and stability provided by the generous 0.75" outer diameter
• Guaranteed material safety for regulated industries with full RoHS 3 and REACH compliance
• Consistent dimensional accuracy and interchangeability within the inch measurement system

Professional Applications & Engineering Value

This 316 stainless steel countersunk washer is engineered to solve critical challenges in demanding applications. Its high corrosion resistance is vital for marine, chemical processing, and outdoor infrastructure, preventing fastener failure and maintenance costs. The 82° countersink angle ensures a perfect, flush fit with corresponding fasteners, eliminating protrusions for improved safety and aesthetics in assemblies. The specified dimensions for a No. 8 screw size guarantee a precise fit, preventing loosening under vibration and ensuring the washer performs its essential function of distributing load and protecting surfaces effectively in industrial settings.

Specification Summary & Compliance

This washer conforms to standard inch system dimensions with an ID of 0.188", OD of 0.75", and a thickness of 0.115-0.135". It is manufactured from 316 Stainless Steel and heat-treated to a Rockwell B83 hardness. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it meets stringent environmental and safety standards for industrial and international use.