Comparison : Item # 6640-0236-1000, PA6 HS Blue Bar
Item # C6640-0250-48-24, Nylon 6 HS Blue
Item # 6640-025048120, Nylon 6 HS Blue
Item # C6640-0250-48-1.5, Nylon 6 HS Blue
Item # C6640-0250-48-2, Nylon 6 HS Blue