Product Description Threaded insert rivets. Replacement insert packs include 30 of each size threaded rivet listed below: SAE sizes: 6-32, 8-32, 10-24, 1/4"-20. Metric sizes: 3 mm x 0.5, 4 mm x 0.7, 5 mm x 0.8, 6 mm x 1.0. Performance Tool Threaded Insert Rivets - Metric at Motosport $21.94 Buy Now Check Price on Amazon Check Price on eBay Category: Threading ToolSize: MetricMPN: W5252