Brand Name: Arrow Fastener *Series: T50 *Crown Width: 3/8 in. *Length: 9/16 in. *Gauge: 18 Ga. *Crown Type: Flat Crown *Product Type: Heavy Duty Staples *Number in Package: 1250 pk *Packaging Type: Boxed *Material: Galvanized Steel *Color:Gray *Discovery NBR, SUP, EXP