FASTENER POP QUIZ FEATURING METRIC FASTENERS [Sponsor] EUROLINK FASTENER SUPPLY SERVICE “Hard-to-Find Metric Fasteners Delivered” Q: What hardness should metric through hardened steel plain washers conform to? A: WATCH VIDEO NOW TO GET THE CORRECT ANSWER. Eurolink is the premier US distributor of metric fasteners and fastener lines with hard-to-find metric fasteners manufactured to both … Continue reading Fastener Pop Quiz: METRIC FASTENERS