M20 x 21mm Metric Fine Track Square Nut | AIMS Industrial

Built for trade and industrial hardware, Metric Fine Track Square Nut Grade 8 Plain suits the rated application with engineering-grade construction and corrosion-rated finishes. Linch pins, self-tappers, hex bolts and piano hinges in the Hobson specialty range cover the gap between common bolted joints and purpose-built assemblies. Used across general engineering, sheet metal fabrication, hinging and pivoting joints, and workshop hardware. Material and finish options span plain steel, zinc plated, 304 stainless and 316 stainless for indoor, external and corrosive environments. Designed for consistent performance across trade and industrial service.