Stanley Heavy Duty Staples 12mm x 1000 pack delivers reliable fastening for demanding applications. These robust staples penetrate tough materials with consistent performance, making them ideal for construction, upholstery, and industrial projects. The 12mm length accommodates thicker substrates whilst maintaining secure hold. With 1000 staples per box, you'll have ample supply for extended jobs. Compatible with standard heavy-duty staple guns, these staples offer professional-grade dependability at practical value.