#4 SAE Flat Washer Black Zinc SD which provides corrosion resistance and

which provides corrosion resistance and a smooth

preventing the fastener from loosening due to vibration or other external forces

Made of high-strength steel and manufactured to ASTM A325 specifications

and various industrial settings where high-performance fastening is required

this bolt is an excellent choice for both indoor and outdoor projects

#4 SAE Flat Washer Black Zinc SD which provides corrosion resistance and#4 SAE Flat Washer Black Zinc is a high quality washer that is designed to be used with #4 screws. It is made from durable steel and has a black zinc finish that provides excellent corrosion resistance. This washer is perfect for use in a variety of applications, including automotive, marine, and industrial. It is also great for use in DIY projects around the home.