Button Head Coupler, Pull On for 5/8" Zerks 1/8-27 NPT 

• Button Head, Heavy Duty, Pull-On 1/8-27 NPT 
• Aluminum, 7,500 psi, for use with Heavy Duty Button Head Fittings
• Air and Battery Equipment
• Fits Zerks that measure 5/8" across the face
• Price is for 1 Piece