BOSTITCH STCR50191/4-6M 1/4-Inch by 7/16-Inch Heavy-Duty PowerCrown Staple (6,000 per Box) PowerCrown technology improves drivability and reduces buckling Coated finish increases withdrawal strength Quantity: 6000 Fits Bostitch tools: T6-8, T6-8OC2, PC1000, PC2000, PC4000, PC4000C1, PC5000, H30-8, P6C-8, USO56-1