This is a set of Dubro Heavy-Duty Ball Links for use with 4-40 threaded rod.
FEATURES: Black nylon link construction
Brass swivel-ball construction
Beveled brass swivel-ball stand-off
Hex-Head machine mounting screw
INCLUDES: Two Heavy-Duty ball links w/brass swivel-balls
Two beveled brass swivel-ball stand-offs
Two 4-40 x 5/8" hex-head mounting screws
Two #4 lock nuts (metal construction w/nylon insert)
REQUIRES: 3/32" allen wrench
1/4" open-end wrench or nutdriver
SPECS: Ball Link Length: 27mm (1.063")
Standoff Height: 3.2mm (0.125")
COMMENTS: Also available in a set of twelve, use DUBQ0898.