5305-00-058-3885, SCREW,CAP,SOCKET HEAD

National Stock Number:
5305-00-058-3885

Federal Supply Class:
5305

National Item Identification Number:
000583885

Description:
SCREW,CAP,SOCKET HEAD

Detail:
An externally threaded fastener whose threaded portion is of one nominal diameter. The head has an internal socket or multiple spline for use with an inserted driver. A locking feature may be incorporated in the design of the head or threads. Excludes items with bevel (conical) heads. See BOLT, INTERNAL WRENCHING. Excludes SCREW, SHOULDER; and SCREW, MACHINE.

Manufacturer Information:

FFS86

81348

FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC

Techincal Specification:

THREAD SERIES DESIGNATOR	UNC
NOMINAL THREAD DIAMETER	0.164 INCHES
THREAD QUANTITY PER INCH	32
THREAD CLASS	3A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.375 INCHES NOMINAL
FASTENER LENGTH	0.375 INCHES NOMINAL
MATERIAL	STEEL OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION	66 FED STD SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENT	CADMIUM OR
	ZINC OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-416,TY 2,CL 3 FED SPEC 1ST TREATMENT RESPONSE OR
	QQ-Z-325,TY 2,CL 3 FED SPEC 2ND TREATMENT RESPONSE OVERALL
HARDNESS RATING	36.0 ROCKWELL C MINIMUM AND
	45.0 ROCKWELL C MAXIMUM OVERALL
MINIMUM TENSILE STRENGTH	160000 POUNDS PER SQUARE INCH
MINIMUM YIELD STRENGTH	130000 POUNDS PER SQUARE INCH
HEAD STYLE	FLAT CHAMFER
HEAD DIAMETER	0.262 INCHES MINIMUM AND
	0.270 INCHES MAXIMUM
HEAD HEIGHT	0.159 INCHES MINIMUM AND
	0.164 INCHES MAXIMUM
INTERNAL DRIVE STYLE	HEXAGON
WIDTH ACROSS FLATS	0.141 INCHES MINIMUM AND
	0.143 INCHES MAXIMUM
SURFACE FINISH	125.0 MICROINCHES BEARING SURFACE OF HEAD
	125.0 MICROINCHES THREADS
NONDEFINITIVE SPEC/STD DATA	6 TYPE
SPEC/STD CONTROLLING DATA
MANUFACTURERS CODE	81348
NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCE	FFS86

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