5305-00-018-0121, SCREW,CAP,HEXAGON HEAD

National Stock Number:
5305-00-018-0121

Federal Supply Class:
5305

National Item Identification Number:
000180121

Description:
SCREW,CAP,HEXAGON HEAD

Detail:
An externally threaded fastener designed for insertion into holes in assembled parts, for mating with a preformed internal thread and for tightening or releasing by torquing the head. The threaded and unthreaded portions are both of the same nominal diameter of 0.190 inch (5 mm) or larger. Head dimensions and sizes of threaded and unthreaded portions shall conform to internationally recognized fastener standards. The thread length being the controlled dimension, the grip length is not specified. A locking feature may be incorporated in the design of the head or threads. Excludes BOLT, MACHINE; BOLT, EXTERNALLY RELIEVED BODY; BOLT, INTERNAL WRENCHING; and SCREW, CAP, SOCKET HEAD.

Manufacturer Information:

125-1068	94033	CARDWELL CONDENSER CORP LAPOINTE-ADMIRAL DIV
180121	21450	ARMY WEAPONS COMMAND ATTN AMSWE-REE-S
180121	24617	GENERAL MOTORS CORP
180121	56442	DIAMOND REO TRUCK CO
180121	72582	ROLLS-ROYCE SOLUTIONS AMERICA INC
180121	7X677	GENERAL MOTORS LLC
180121	81381	STEWART & STEVENSON POWER PRODUCTS LLC
180121	89346	NAVISTAR INTL CORP TRUCK BR OHIO PLANT
214697	21450	ARMY WEAPONS COMMAND ATTN AMSWE-REE-S
4AX58	76040	MACK TRUCKS INC PARTS OPN
60X3230	95201	NAPCO INTERNATIONAL LLC
FF-S-85	81348	FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC

Techincal Specification:

FASTENER LENGTH	0.844 INCHES MINIMUM AND 0.906 INCHES MAXIMUM
HARDNESS RATING	25.0 ROCKWELL C MINIMUM AND 34.0 ROCKWELL C MAXIMUM OVERALL
HEAD HEIGHT	0.226 INCHES MINIMUM AND 0.243 INCHES MAXIMUM
HEAD STYLE	HEXAGON
MATERIAL DOCUMENT AND CLASSIFICATION	SAE J429,GRADE 5 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIAL	STEEL OVERALL
MINIMUM YIELD STRENGTH	92000 POUNDS PER SQUARE INCH
MINIMUM TENSILE STRENGTH	120000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER	0.375 INCHES
NONDEFINITIVE SPEC/STD DATA	2 TYPE AND 10P STYLE AND 3/8-16IN. SIZE
SPECIFICATION/STANDARD DATA	81348-FF-S-85 GOVERNMENT SPECIFICATION AND 24617-180121 MANUFACTURERS STANDARD
WIDTH BETWEEN FLATS	0.551 INCHES MINIMUM AND 0.562 INCHES MAXIMUM
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-Z-325,TYPE 2,CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENT	DICHROMATE ZINC OVERALL
THREAD CLASS	2A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.844 INCHES MINIMUM AND 0.875 INCHES MAXIMUM
THREAD SERIES DESIGNATOR	UNC
THREAD QUANTITY PER INCH	16

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