Swing Eye Bolts – Blank Blank Steel Swing Eye Bolts, Inch S&W P/N Thread (A) Length (B) Head Radius (D) Thickness (F) SBB-1 1/4 2 1/4 1/4 SBB-2 3/8 3 3/4 1/2 1/2 SBB-3 1/2 3 3/4 1/2 1/2 SBB-4 5/8 4 1/2 5/8 5/8