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Carriage Bolts Zinc Plated Steel 5/16-18"

5/16"-18 Zinc Plated Carriage Bolt

Diameter - Thread Pitch: 5/16-18

  • 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

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.

REACH and RoHS Compliant
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Product Specifications
Color
Silver
Corner Radius on Square
0.031
Corrosion Resistant
Yes
Filet Radius
0.031
Finish
Zinc Plated
Head Diameter
Max 0.719 - Min 0.688
Head Height
Max 0.176 - Min 0.156
Head Style
Dome
Material
Steel
Product Type
Carriage Bolt
Square Neck Depth
Max 0.187 - Min 0.156
Square Neck Width
Max 0.324 - Min 0.307
System of Measurement (Unit)
Inch
Thread Direction
Right Hand
Thread Pitch (Count)
18 Per Inch
Thread Standard
UNC
Thread Type
Coarse
Tolerance (IFI)
Actual measurements may vary slightly +/- depending on production run within IFI Tolerances

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