Genuine Unistrut P2346-EG 8 Hole Wing Shape 90 Degree Connector Fitting for All 1-5/8" Strut Channel TRUSTED BRAND - Genuine UNISTRUT. ESSENTIAL PART - 8 Hole Wing Shape 90 Fitting Bracket for 3 Way Channel Cross Section. FOR USE WITH - 1/2" bolt in all 1-5/8" series channels. DIMENSIONS - 9/16"" diameter hole; thickness: 1/4"" (6mm). SILVER FINISH - Electro-Galvanized Zinc; ASTM B633, Type III.