RAM MOUNTS RAM-234-SKU Security Pin-Lock Kit for Ram Complete Laptop Mounting Systems. Includes:1/4"-20x10 1/2" Long Threaded Rod, 1"x3/4"x6 1/2" Long Tube, spring, plastic flange with bose, 2 plastic wedges, 1/4"-20 NY-Lock nut, 1/4" flat washer, 4 #8-32x1/2" Long machine screws, 4 #8-32 thin NY-lock nuts, #8-32x1 1/2" long machine screw, #8-32 NY-Lock nut (Thick Nut), 3/4" ODx1/4" ID black plastic washer, locking knob with 2 keys, #8-32x3/8" long machine screw, #8 flat washer.