Alloy Steel Quick-Release pin from the Jergens Kwik-Lok Pin brand.
Style: T-Handle
Pin Diameter: 5/16"
Grip Length: 1.25"
Double Sheer Strength: 12800 lbs
Pin Body: High Strength Alloy Steel, 4130 heat treated and cadmium plated, yellow trivalent chromium passivation
Handle: Handle is black cast aluminum and the button is blue anodized aluminum