5305-00-177-5622, SCREW,LAG

5306-00-177-5621 BOLT,EXTERNALLY RELIEVED BODY

National Stock Number:
5305-00-177-5622

Federal Supply Class:
5305

National Item Identification Number:
001775622

Description:
SCREW,LAG

Detail:
AN EXTERNALLY THREADED FASTENER HAVING A SQUARE OR HEXAGON HEAD AND WITH A CONTINUOUS THREAD (WOOD SCREW TYPE OR FETTER TYPE) EXTENDING FROM A GIMLET OR CONE POINT FOR A DISTANCE OF SLIGHTLY MORE THAN ONE-HALF THE LENGTH OF THE SCREW.

Manufacturer Information:

230018	2S125	HILLMAN GROUP INC THE
ANSI B18.2.1	80204	AMERICAN NATIONAL STANDARDS INSTITUTE INCORPORATED
ASME-B18.2.1	05047	THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS
FF-B-561 TY1ST1GRB	80244	GENERAL SERVICES ADMINISTRATION FEDERAL SUPPLY SERVICE
FFB561	81348	FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC
MS16992-506	96906	MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M

Techincal Specification:

FASTENER LENGTH	2.500 INCHES NOMINAL
HARDNESS RATING	60.0 ROCKWELL B MINIMUM OVERALL
HEAD HEIGHT	0.150 INCHES MINIMUM AND 0.188 INCHES MAXIMUM
HEAD STYLE	HEXAGON
MATERIAL	STEEL OVERALL
MINIMUM TENSILE STRENGTH	55000 POUNDS PER SQUARE INCH
NONMACHINE NOMINAL THREAD DIAMETER	0.250 INCHES
NONMACHINE THREAD STYLE	GIMLET POINT (TYPE A, AB OR BA)
SHOULDER DIAMETER	0.237 INCHES MINIMUM AND 0.260 INCHES MAXIMUM FIRST SHOULDER
SHOULDER SHAPE	ROUND FIRST SHOULDER
WIDTH BETWEEN FLATS	0.425 INCHES MINIMUM AND 0.438 INCHES MAXIMUM
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	ASTM A153 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENT	ZINC OVERALL

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