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NAS1216-04E4L

Screw

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Description

Fastener Length: 1/4", Thread: 4-40, Thread Length: 1/4"

Specifications

Bearing Surface Of Head Surface Finish 32.0 microinches
Fastener Length 0.235 inches minimum and 0.265 inches maximum
Hardness Rating 36.0 rockwell c minimum and 40.0 rockwell c maximum
Head Diameter 0.205 inches minimum and 0.219 inches maximum
Head Height 0.070 inches minimum and 0.080 inches maximum
Head Style Pan Head
Internal Drive Style High-torque
Length 1/4
Locking Feature Patch
Material Iron
Min. Tensile Strength (psi) 160000 pounds per square inch
Screw Material Iron alloy 660
Screw Material Specification Ams 5731 assn std single material response or ams 5732 assn std single material response or ams 5737 assn std single material response
Screw Surface Treatment Passivate
Screw Surface Treatment Specification Qq-p-35 fed spec single treatment response
Specification Data 80205-nas1216 professional/industrial association standard
Thread Class 3a
Thread Diameter 0.112
Thread Direction Right-hand
Thread Length 0.185 inches minimum and 0.265 inches maximum
Thread Qty 40
Thread Qty Per Inch (tpi) 40
Thread Series Designator UNJC
Thread Size 4
Thread Surface Finish 32.0 microinches

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 NAS1216-04E4L. Try the cross-reference lookup to search by a different part number.

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