10 Pack, Shear Pins and Nuts, Replaces Ariens 510016, 51001600, 532005, 53200500. Price is for 10 Shear Pins and 10 nuts. Replaces Ariens shear pins 510016, 51001600 Also Jacobsen 342449, 410120, or 444708 1-3/4" to hear, 2" overall, 1/4" threads.