Ideal for contractors managing repetitive installs, ITW Ramset's 3 in. Insulfast Concrete Pinsare packaged in quantities of 500, offering consistent fastening performance across large-scale jobs. The durable HDPE washer combined with a hardened steel pin ensures compatibility with various rigid insulation materials and surfaces. This SKU includes only the fasteners, the T4 I-F tool and required fuel cells (T4IFUEL) are sold separately to complete the fastening system.