Hex Cap Screws Grade 8 Yellow Zinc 1/4"-28

1/4"-28 Yellow Zinc Hex Cap Screws - Grade 8

Diameter - Thread Pitch: 1/4" - 28


  • 1/4"-28
  • Hexagon head designed to be driven by a wrench or socket
  • Also called hex cap bolts, hex bolts, tap bolts or hex cap screws
  • Grade 8 Yellow zinc plated fasteners are heat treated and hardened for a more durable finished fastener
  • REACH and RoHS Compliant

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


**1/4"-28 Hex Cap Screws listed as PT, usually have a threaded portion of about 3/4".
However, this can vary slightly from manufacturer to manufacturer.

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Product Specifications
Across Flats (Width)
7/16" (Max 0.437 - Min 0.428)
Color
Yellow
Drive Style
External Hex
Finish
Yellow Zinc Plated
Grade
8
Head Height
Max 0.163 - Min 0.150
Head Height Basic
5/32"
Head Style
Hex
Material
Steel
Product Type
Hex Cap Screws
System of Measurement (Unit)
Inch
Thread Direction
Right Hand
Thread Pitch (Count)
28 Per Inch
Thread Standard
UNF
Thread Type
Fine
Tolerance (IFI)
Actual measurements may vary slightly +/- depending on production run within IFI Tolerances
Wrench Size
7/16"