Description:1.Designed with hex head and carbon steel material.2.Fixing component, industrial and construction fasteners.3.Used widely in the home and office appliance, communication equipment, ship assembly and other machinery industry.Specification:Product Name: Hex Head BoltsMaterial: Carbon SteelPerformance Grade: 5 UNCThread Size: 1/4" x 1-3/4" (D*L)Number of Teeth: 20Rod Length: 44.45mm / 1.75"Hex Width: 11mm / 0.43"Hex Thickness:4.2mm / 0.17"Package Content: 10 x Hex Head Bolts