Hex Cap Screws Hot Dipped Galvanized 307A Grade A 3/8-16"

3/8"-16 Hot Dip Galvanized Hex Cap Screws

Diameter - Thread Pitch: 3/8" - 16

  • 3/8"-16
  • Hexagon head designed to be driven by a wrench or socket
  • Also called hex cap bolts, hex bolts, tap bolts or hex cap screws
  • Hot dipped galvanized finish offers corrosion resistance due to the molten zinc bath finishing process
  • Creates a bonded alloy coating
  • Due to the finishing process for Hot Dip Galvanized fasteners, it is recommended to only use Hot Dip Galvanized fasteners with Hot Dip Galvanized fasteners and not mix metals. This can create threading and durability issues.

A hex cap screw in smaller sizes may not have a shoulder. When a hex cap screw is fully threaded it can also be referred to as a tap bolt.

A Hex Bolt is measured as: Diameter x Thread Pitch x Length from Under Head
FT: Fully Threaded
PT: Partially Threaded

** 3/8"-16 Hex Cap Screws listed as PT, usually have a threaded portion of about 1".
However, this can vary slightly from manufacturer to manufacturer.

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Product Specifications
Corrosion Resistant
Drive Style
External Hex
Hot Dip Galvanized
Head Height
Basic 15/64", Max 0.243 - Min 0.226
Head Style
Product Type
Hex Cap Screws
System of Measurement (Unit)
Thread Direction
Right Hand
Thread Pitch (Count)
16 Per Inch
Thread Standard
Thread Type
Tolerance (IFI)
Actual measurements may vary slightly +/- depending on production run within IFI Tolerances
Width Across Corners
Max 0.650 - Min 0.628
Wrench Size