5/16"-18 Grade 5 Hex Bolt - Zinc Coarse Thread
Grade 5 Hex Bolt - Zinc - Coarse Thread - (##) Number of Pieces in 1 Pound
The Grade 5 bolt can be distinguished by the 3 dashes (l) on top of the head of the bolt, please see photo below. A Grade 5 hex bolt has greater tensile strength than a Grade 2 hex bolt. The length of a hex bolt is determined by measuring from under the head of the bolt to the base of the threads. Please note you are buying by the pound so confirm your pieces when considering how much to purchase. (##) Number of pieces in 1 pound.
|Head Style:||Hex||Socket Size:||1/2|
|Proof Load, Lb.:||3,900||Tensile Strength, Lb.:||4,450|
SAE J429 Proof Load and Tensile Strength Requirements Above
Length is Measured from Under the Head to the Bottom of the Bolt