WH148-1A-2: single turn, 17mm, metal shaft and bushing, horizontal adjustment WH148-1A-1: single turn, 17mm, metal shaft and bushing, vertical adjustment WH148-1B-2: multi turn, 17mm, metal shaft and bushing, horizontal adjustment WH148-1A-2MJ: single turn, 20mm, metal shaft and bushing, metal bracket WH148-1B-2J: multi turn, 20mm, metal shaft and bushing, metal bracket WH148-2B-2: multi turn, 17.2mm, metal shaft and bushing, another top foot WH148-3A-2: single turn, 21mm, metal shaft and bushing, four feet WH148-3B-2: multi turn, 21mm, metal shaft and bushing, double four feet WH148-3B-2J: multi turn, 25mm, metal shaft and bushing, metal bracket WH148-4A-1: single turn, 18mm, metal shaft and bushing, special shaft WH0161: single turn, 17mm, plastic shaft and metal shaft