5305-01-090-9077, SCREW,CAP,SOCKET HEAD

National Stock Number:
5305-01-090-9077

Federal Supply Class:
5305

National Item Identification Number:
010909077

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:

CA21089-4-6HS	29372	HOWMET GLOBAL FASTENING SYSTEMS INC.
CA21089-4-6HS	71286	HOWMET GLOBAL FASTENING SYSTEMS INC

Techincal Specification:

FASTENER LENGTH	1.107 INCHES MINIMUM AND 1.127 INCHES MAXIMUM
INTERNAL DRIVE STYLE	HEXAGON
MATERIAL DOCUMENT AND CLASSIFICATION	MIL-S-5626 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-6049 MIL SPEC 2ND MATERIAL RESPONSE OVERALL
MATERIAL	STEEL COMP 4140 OR STEEL COMP 8740 OVERALL
MINIMUM TENSILE STRENGTH	180000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER	0.250 INCHES
SPECIAL FEATURES	DOUBLE LEAD MODIFIED MINOR DIA. THREADS. ITEM IS FURNISHED WITH ONE RETAINING RING CA21089-GR AND WITH ONE FLAT BEAM NUT CA2108
SURFACE FINISH	32.0 MICROINCHES BEARING SURFACE OF HEAD
SURFACE FINISH	32.0 MICROINCHES GRIP
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-416 TY2 CL2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENT	CADMIUM OR CHROMATE OVERALL
THREAD CLASS	3A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.599 INCHES MINIMUM AND 0.819 INCHES MAXIMUM
THREAD QUANTITY PER INCH	28
THREAD SERIES DESIGNATOR	UNF
WIDTH ACROSS FLATS	0.156 INCHES MINIMUM AND 0.159 INCHES MAXIMUM

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