The 42-7-LF-LN-S from Calmark Birtcher is Wedge-Lok with 3 segment, non-shafted design, lock & flat washer, lock nut and 2-56 tapped hole. This Wedge-Lok has 5.72 mm (0.225") x 5.72 mm (0.225") profile dimensions and 88.90mm (3.5") length. For cold wall applications.