The Stanley Flat Narrow Crown Staples in 12mm size are designed for heavier duty applications and thicker materials. This longer 12mm length makes them ideal for securing thicker fabrics, heavier upholstery, insulation materials, and robust construction applications where maximum penetration and holding power are essential. Suitable for use with the 6-CT-10X Cable Tacker, FatMax® Composite 4-in-1 Stapler and FatMax® Lightweight Composite Hammer Tacker, these 12mm staples deliver superior holding strength whilst maintaining the reliability you expect from Stanley fasteners. The flat narrow crown design ensures secure fixing even in demanding applications. Supplied in a convenient plastic box containing 1000 staples, this pack provides long-lasting value for professional tradespeople and serious DIY enthusiasts alike. Features and Benefits: • 12mm size ideal for heavy-duty applications and thicker materials • Compatible with multiple Stanley tackers and staplers • Superior holding power for demanding tasks • 1000 staples per box for extended professional use • Durable plastic storage box for organised storage Specifications: Size (mm): 12 Pack Qty.: 1000 Type: Flat Narrow Crown