5305-01-003-4252, SCREW,CAP,SOCKET HEAD

National Stock Number:
5305-01-003-4252

Federal Supply Class:
5305

National Item Identification Number:
010034252

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:

0.138-32-3AX0.438 HEXSOCKET CRES	70318	ALLMETAL SCREW PRODUCTS CORP
6-32-3A X 7/16 HEX SOCKETHD CRES	70318	ALLMETAL SCREW PRODUCTS CORP
6-32UNC-3AX0.438CRES	70318	ALLMETAL SCREW PRODUCTS CORP
6-32UNC3A7/16SOCKETHEAD	70318	ALLMETAL SCREW PRODUCTS CORP
FF-S-86	81348	FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC

Techincal Specification:

FASTENER LENGTH	0.438 INCHES NOMINAL
HARDNESS RATING	39.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM OVERALL
HEAD DIAMETER	0.218 INCHES MINIMUM AND 0.226 INCHES MAXIMUM
HEAD HEIGHT	0.134 INCHES MINIMUM AND 0.138 INCHES MAXIMUM
HEAD STYLE	KNURLED NO. 1
INTERNAL DRIVE STYLE	HEXAGON
MATERIAL DOCUMENT AND CLASSIFICATION	66 FED STD ALL MATERIAL RESPONSES OVERALL
MATERIAL	STEEL COMP 302 OR STEEL COMP 304 OR STEEL COMP 305 OR STEEL COMP 316 OR STEEL COMP 384 OVERALL
MINIMUM TENSILE STRENGTH	80000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER	0.138 INCHES
NONDEFINITIVE SPEC/STD DATA	6 TYPE AND 6-32 SIZE AND 7/16IN. LENGTH AND 3A CLASS AND UNC SERIES
SPECIFICATION/STANDARD DATA	81348-FF-S-86 GOVERNMENT SPECIFICATION
WIDTH ACROSS FLATS	0.109 INCHES MINIMUM AND 0.111 INCHES MAXIMUM
SUPPLEMENTARY FEATURES	FSCM 80204-ANSI B18.3 TABLE 3 SIZE 6
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENT	PASSIVATE OVERALL
THREAD CLASS	3A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.438 INCHES NOMINAL
THREAD QUANTITY PER INCH	32
THREAD SERIES DESIGNATOR	UNC

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