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NAS1351C4LE16

Socket Head Screw

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Description

Fastener Length: 0-63/64", Thread: 1/4-28, Head Width: 3/16", Thread Length: 0-63/64"

Specifications

Fastener Length 0.970 inches minimum and 1.000 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
Internal Drive Style Hexagon
Length 0 63/64
Locking Feature Patch threads or pellet threads or strip threads
Material CRES
Min. Tensile Strength (psi) 80000 pounds per square inch
Minimum Yield Strength 30000 pounds per square inch
Specification Data 80205-nas1351 professional/industrial association standard
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 0.899 inches minimum and 1.000 inches maximum
Thread Qty 28
Thread Qty Per Inch (tpi) 28
Thread Series Designator UNRF
Thread Size 1/4
Width Across Flats 0.188 inches minimum and 0.190 inches maximum

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