AuvecoPak 1/4-20 Well Nuts 4pc.

Screw Size : 1/4-20
Head Diameter : 0.635"
Overall Length : 1.051"
Shank Length : 1.00"
Shank Diameter : 0.500"
Head Thickness : 0.051"
Hole Size : 1/2"
Grip Range : 0.250-0.457"
Material : Neoprene
Includes : Captive Brass Nut