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AN525-832-7

Aeronautical Standard Machine Screw

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Description

AN 525-832-7 Washer Head Machine Screw

Specifications

Extended Washer Diameter 0.375
Extended Washer Thickness 0.023 inches minimum and 0.028 inches maximum
Fastener Length 0.438
Finish Cadmium ll
Grip Length 1/16
Hardness Rating 26.0 rockwell c minimum and 32.0 rockwell c maximum
Head Diameter 0.312
Head Height 0.082 inches minimum and 0.092 inches maximum
Head Style Round extended washer, Washer Head
Internal Drive Style Slot
Length 7/16
Material Steel
Min. Tensile Strength (psi) 125000 pounds per square inch
Screw Material Steel
Screw Material Specification Qq-s-689,c4-canceled fed spec single material response
Screw Surface Treatment Cadmium and chromate zinc
Screw Surface Treatment Specification An-p-61 mil std 1st treatment response and mil-p-6889,type 1-canceled mil spec 2nd treatment response
Size 8-32
Thread Class 3a
Thread Diameter 0.164
Thread Direction Right-hand
Thread Length 0.375 inches minimum
Thread Qty 32
Thread Qty Per Inch (tpi) 32
Thread Series Designator UNC
Thread Size 8

Other sizes

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

Cross-reference

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