Comparison : Item # 7/16, 4140 Annealed and Cold Drawn Alloy Steel - Hexagons
Item # 1/2, 4140 Annealed and Cold Drawn Alloy Steel - Hexagons
Item # 9/16, 4140 Annealed and Cold Drawn Alloy Steel - Hexagons
Item # 5/8, 4140 Annealed and Cold Drawn Alloy Steel - Hexagons
Item # 11/16, 4140 Annealed and Cold Drawn Alloy Steel - Hexagons