The T50 Genuine Arrow staples are made in the united states from quality stainless steel material, ensuring your stapling is precise, strong and long-lasting – first time, every time. Available in 6mm (1/4 inch), 8mm (5/16 inch), 10mm (3/8 inch), 12mm (1/2 inch), 13mm (17/32 inch) and 14mm (9/16 inch) sizes with a flat crown width of 10mm. Also in stainless steel and monel materials. 5/16 in. sizeGenuine Arrow T50 staplesQuality stainless steel material for long-lasting durabilityAvailable in 6 mm, 8 mm, 10 mm, 12 mm, 13 mm and 14 mm leg lengthsFlat 10 mm crownCompatible with the Arrow T50 Heavy Duty Staple Gun and other brands5/16 in.8mm1,000 per pack