80 series staples (21GA fine wire, flat crown U-shaped pneumatic staples) Also known as: Type 80/810/812/814/816 staples, they are 21GA fine U-shaped, flat crown (12.8mm) light-duty adhesive collated staples, compatible with 80 series pneumatic staple guns. Core Specification Parameters Wire gauge: 21GA, wire diameter ≈ 0.8mm; cross-section: width 0.95mm, thickness 0.65mm Crown width (shoulder width): 12.75–12.9mm (flat crown) Leg length (model named 80XX): 4/6/8/10/12/14/16mm (8004, 8006, 8008, 8010, 8012, 8014, 8016) Collation/packaging: Adhesive collation; 10,000 pieces/box, 20 boxes/carton (200,000 pieces/carton) Material & Surface Technology Base material: Low-carbon steel wire (Q235), with good toughness, not easy to break, and no splitting of thin materials Surface: Electro-galvanized (bright white/color zinc, regular rust resistance); copper-plated and 304 stainless steel options available (for humid/outdoor environments) Staple tip: Chisel-shaped sharp point, with sharp piercing ability, smooth feeding into the gun, and low jamming rate Performance Features 21GA is thinner, does not damage thin fabrics/thin boards, and does not split materials; the flat crown has a large stress area, ensuring stable grip and resistance to pulling through Adhesive collation allows continuous nailing without scattering, compatible with light-duty pneumatic staple guns