Description
5/16″-18 Zinc plated steel carriage bolts have a domed or countersunk head, and the shank is topped by a short square section under the head.
- Square section grips into the part being fixed (usually wood)
- Preventing the bolt from turning when the nut is tightened
- Up to 6″ of thread
- Bolts Over 6″ in length will have a shoulder beneath the head
Body Diameter = 5/16″ (Max 0.324 – Min 0.298)Color = SilverCorner Radius on Square = 0.031Corrosion Resistant = YesFilet Radius = 0.031Finish = ZincHead Diameter = Max 0.719 – Min 0.688Head Height = Max 0.176 – Min 0.156Head Style = DomeMaterial = SteelProduct Type = Carriage BoltSquare Neck Depth = Max 0.187 – Min 0.156Square Neck Width = Max 0.324 – Min 0.307Thread Direction = RightThread Pitch (Count) = 18Thread Standard = UNCThread Type = Coarse
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