Thread inserts 24 size: M5 x 0.8; 15 size: M6 x 1.0; 10 size M8 x 1.25; 6 size M10 x 1.5; 5 size: M12 x 1.75. Draper Expert range is our benchmark for quality. High quality stainless steel thread inserts provides stronger assemblies where there is a tapped hole.