We can supply barbed wires for you Based on ASTM A 121, here is one of the common size of double twist Gavanized barbed wires.

1. Barbed Wire size: 4 points , 5" barbed  distance
2. Wire Length : 500 M
3. Wire Gauge : 15-1/2"
4. Zinc coating stander : Class 3
5. Package : 500M/roll ,Bulk,pallet

Double twist galvanized Barbed Wire Details:

Material: Galvanized Steel Wire 
Wire Gauge : 12" 12-1/2" 13" 13-1/2" 14" 14-1/2" 15" 15-1/2" 16"
Numbers of Barb Points: 2 or 4
Twist of Barbed Wire: single twist , double twist
Spacing of Barb Points: 3" 4" 5"

1. Zinc coating Barbed Wire

2. PVC coated Barbed Wire in different colors

3. Stainless Steel Barbed Wire 304 grade

4. Single Twist galvanized Barbed Wire

5. Double Twist Galvanized Barbed Wire

6. Post for Barbed wire

7.Doule Twist Barbed wire packaged in wooden Pallet

8.Galvanized Barbed Wire In Container