AT-3B Small Black Nylon Wire Tie Mount – Qty. 500 The AT-3 tie mount is smaller for panel and other small space applications. This part is molded in black nylon and is sized for a #3 wire tie with a maximum width of .20”. Average pull strength is about 50 lbs. The square base measures .44” wide. Use this smaller wire tie for runs with only a few wires or where space prevents use of our larger tie mounts. Excellent for mounting compass wires on center console boats and for overhead panel runs.