Chrome Plated Steel Bent Receiver Pin, With Swiveling Lock Head, For Ease In Tight Spaces Has 5/8" & 1/2" Bent Pins To Fit 5/8" & 1/2" Size Receiver Holes, All Weather Cover Protects The Lock Key Way Form The Harsh Elements, Uses Master Lock Key Blank K1BOX Or Ilco Blank M1 TV #320-952.