Astro Pneumatic 120PC Steel Riven SAE Nut Assortment RN120 The Astro Pneumatic 120PC Steel Riven SAE Nut Assortment RN120 includes at least 120PC of steel zinc plated flat head knurled body standard length rivet nuts in SAE UNC sizes. 40PC 8-32, 40PC 10-24, 20PC 1/4-20”, 10PC 5/16-18” and 10PC 3/8-16”. Drill holes sizes: 8-32 (6mm or 7/32”), 10-24 (7mm or 9/32”), 1/4” (9mm or 3/8”), 5/16” (1mm or 7/16”), 3/8” (13mm or 17/32”). The Astro Pneumatic 120PC Steel Riven SAE Nut Assortment RN120 includes a plastic storage case and size guide for convenience.