600Pcs Foam Board Fasteners – 1-1/8 Inch Metal Washers for Fixing Installation

Customers find these washers perform well, with one mentioning they work great for installing foam backer board. Moreover, the washers receive positive feedback for their quality, with one customer noting they're as good as expensive name-brand alternatives, and customers consider them a great value. However, the screw quality receives mixed reviews, with several customers reporting that the screw heads are not large enough.