5305-00-145-1045, SCREW,LAG

National Stock Number:
5305-00-145-1045

Federal Supply Class:
5305

National Item Identification Number:
001451045

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:

FF-B-561 STD P/N-634	81348	FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC
FFB561	81348	FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC
MS16992-634	96906	MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M

Techincal Specification:

FASTENER LENGTH	1.000 INCHES NOMINAL
HEAD HEIGHT	0.150 INCHES MINIMUM AND 0.188 INCHES MAXIMUM
HEAD STYLE	HEXAGON
MATERIAL DOCUMENT AND CLASSIFICATION	QQ-C 591 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIAL	COPPER ALLOY 651 OVERALL
NONDEFINITIVE SPEC/STD DATA	1 TYPE AND 1 STYLE AND D GRADE
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 LENGTH	0.094 INCHES MINIMUM FIRST SHOULDER
SHOULDER SHAPE	ROUND FIRST SHOULDER
WIDTH BETWEEN FLATS	0.425 INCHES MINIMUM AND 0.438 INCHES MAXIMUM

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