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NAS428HK4A13

Bolt

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Description

Fastener Length: 1-7/16", Hole Diameter: 3/64", Thread: 1/4-28, Thread Length: 1-13/32"

Specifications

Fastener Length 1.375 inches minimum and 1.437 inches maximum
Features Provided Finished head
Grip Length 0.062 inches minimum and 0.301 inches maximum
Hardness Rating 26.0 rockwell c minimum and 32.0 rockwell c maximum
Head Height 0.141
Head Style Crowned hexagon
Hole Configuration Style Hexagon flats
Hole Diameter 0.045 inches minimum and 0.050 inches maximum
Hole Quantity 1
Hole Type Drilled
Length 1 7/16
Material Steel
Minimum Yield Strength 125000 pounds per square inch
Special Features Slotted shank
Specification Data 80205-nas428 professional/industrial association standard
Surface Treatment Cadmium and chromate
Thread Class 3a
Thread Diameter 0.250
Thread Direction Right-hand
Thread Length 1.313 inches minimum and 1.406 inches maximum
Thread Qty 28
Thread Qty Per Inch (tpi) 28
Thread Series Designator UNF
Thread Size 1/4
Width Between Flats 0.428 inches minimum and 0.440 inches maximum

Other sizes

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

Cross-reference

No interchangeable or dimensionally similar parts are on record for NAS428HK4A13. Try the cross-reference lookup to search by a different part number.

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