The M-Series quick release pins feature a conical shield around the push-button head to prevent accidental pin release.
They do not come with a keeper ring, but do have a hole for a user supplied attachment ring.
Note: grip length is the functional working length; it is the distance from the shoulder to the locking ball bearing.
• Positive lock — high resistance to accidental release
• One-hand release — just push the button, then pull
• Sliding internal shaft prevents ball bearings from releasing
• Heat-treated, passivated 17-4 PH stainless steel