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655-590-9122

Socket Head Cap Screws

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Description

Fastener Length: 1-1/4", Hole Diameter: 3/64", Thread: 1/4-28, Head Width: 3/16", Thread Length: 1

Specifications

Fastener Length 1.210 inches minimum and 1.250 inches maximum
Hardness Rating 80.0 rockwell b minimum
Head Diameter 0.365 inches minimum and 0.375 inches maximum
Head Height 0.244 inches minimum and 0.250 inches maximum
Head Style Flat chamfer
Hole Configuration Style Round internal hexagon
Hole Diameter 0.047
Hole Quantity 6
Hole Type Drilled
Internal Drive Style Hexagon
Length 1 1/4
Material Iron
Material Specification Ams 5732 assn std single material response
Min. Tensile Strength (psi) 80000 pounds per square inch
Minimum Yield Strength 30000 pounds per square inch
Surface Treatment Passivate
Surface Treatment Specification Qq-p-35 fed spec single treatment response
Thread Class 3a
Thread Diameter 0.250
Thread Direction Right-hand
Thread Length 1.000 inches minimum
Thread Qty 28
Thread Qty Per Inch (tpi) 28
Thread Series Designator UNF
Thread Size 1/4
Width Across Flats 0.188 inches minimum and 0.190 inches maximum

Other sizes

Parts that share this base number, ordered by size. Always verify the full specification before substituting.

Cross-reference

Similar parts

Parts with matching key dimensions — often from a different standards family. Candidates for comparison only; verify the full specification before substituting.

  • MS24673-13 MS 1/4-28 · 0.073 in · Flat chamfer · CRES
  • MS24673-14 MS 1/4-28 · 0.073 in · Flat chamfer · CRES
  • NAS1351-4H24P NAS 1/4-28 · 0.073 in · Flat chamfer · Steel
  • NAS1351C4H24 NAS 1/4-28 · 0.073 in · Flat chamfer · CRES
  • NAS1351C4H28 NAS 1/4-28 · 0.073 in · Flat chamfer · CRES
  • NAS1351N4H20 NAS 1/4-28 · 0.073 in · Flat chamfer · Iron

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Catalog data updated 2026-07-05. Report a data error