HCC channel connections are used to mount framing systems together. Lock nuts and set screws are used to build support structures for various applications. The HC channel connections are available in three series to be used with channels HMPB & HMPC. The series are 28 for channel type 28/15 and 28/28; 36 for channel type 36/36; and serious 41 for channel type 41/41 and 41/21. Material Available are stainless steel type 1.4301 & 1.4401 and galvanized mild steel.