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PRODUCT SPECIFICATIONS Part #: 0000-119326 Fastener Type: Step Bolt Size Description: 5/16"-18 x 3" (FT) Diameter/Nominal Size: 5/16" Length: 3" Thread Pitch: 18 Thread Pitch Type: Coarse Thread Direction: Right Thread Coverage: Full System of Measurement: Inch Grade: A (2) Material: Low Carbon Steel Finish: Zinc Plated Standards Met: A307 Average Piece Weight: 0.0906700 lbs. Step Bolts are similar to carriage bolts in that they both have a square shoulder and a larger bearing surface. Step bolts, however, have a larger and lower-profile with a round head, creating a smooth surface. The larger heads also make it a more difficult pull through soft materials.