120pc Steel Rivet Nut Assortment - SAE Plastic storage case and size guide for convenience. Includes at least 120pcs of steel zinc plated flat head knurled body standard length rivet nuts in SAE UNC sizes.. 40pcs 8-32, 40pcs 10-24, 20pcs ¼-20”, 10pcs 5/16-18” and 10pcs 3/8-16”. Drill holes sizes: 8-32 (6mm or 7/32”), 10-24 (7mm or 9/32”), ¼” (9mm or 3/8”), 5/16” (1mm or 7/16”), 3/8” (13mm or 17/32”). Plastic storage case and size guide for convenience RN120 Yes - GASOLINE ENGINE EXHAUST (CONDENSATES/EXTRACTS)