The Index Arm Shoulder Bolt no longer needs to be removed for maintenance. To apply more grease, simply hook up your favorite grease gun and give the grease zerk a squirt!
This is a huge time saver, plus the added advantage of no longer risking accidental damage to the index return spring upon reassembly.
The bolt is made from 4140 Pre-Hardened Chromoly steel and fully machined while in its hardened state. This gives the bolt a beautiful finish that is also very durable.