Home / INDUSTRIAL HARDWARE / 1/4 Turns with Grip / GA-151 – Compression Wing Knob Locking 1/4 Turn. GA-151 – Compression Wing Knob Locking 1/4 Turn. Compression Wing Knob Locking 1/4 Turn with 30mm-70mm range. Often used with cabinets that need to be weatherproof as compression on the door helps to add pressure on seals. Category: 1/4 Turns with Grip Product ID: 3061