Spans 2 joists per unit, typically used for bridging or bracing I-joists. Must be installed before subfloor sheathing to reduce joist movement and subsequent floor noise. G90 Gal vanizing finish. Requires 8d x 1-1/2 nails. Meets ICC-ES ESR-1781, FL13285 and L.A. City RR25843 codes. For additional information including I-joist installation, Please See USP Lumber Connectors charts in the Orgill paper catalog R7 Reference Pages. 22 Gauge.