Penn Elcom - C0679 - Triangular Corner. Penn Elcom Sale! from 608 /per Qty. Add to Cart This item is a recurring or deferred purchase. By continuing, I agree to the cancellation policy and authorize you to charge my payment method at the prices, frequency and dates listed on this page until my order is fulfilled or I cancel, if permitted. Triangular Corner. Part No. C0679? Finish PennBrite Material 1.2mm Steel Internal Radius 4.1mm Weight 51g Qty available:71 SKU:C0679 Corners - All Corners - Flat