5305-00-177-5623 SCREW,LAG Index 5305-00-177-5625 SCREW,LAG

National Stock Number:
5305-00-177-5624

Federal Supply Class:
5305

National Item Identification Number:
001775624

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-561D81348FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC
FFB56181348FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC
MS16992-60696906MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M


Techincal Specification:
FASTENER LENGTH5.000 INCHES NOMINAL
HARDNESS RATING60.0 ROCKWELL B MINIMUM OVERALL
HEAD HEIGHT0.378 INCHES MINIMUM AND 0.444 INCHES MAXIMUM
HEAD STYLEHEXAGON
MATERIAL DOCUMENT AND CLASSIFICATIONFF-B-561,GRADE B FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL OVERALL
MINIMUM TENSILE STRENGTH55000 POUNDS PER SQUARE INCH
NONDEFINITIVE SPEC/STD DATA1 TYPE AND 1 STYLE AND B GRADE
NONMACHINE NOMINAL THREAD DIAMETER0.625 INCHES
NONMACHINE THREAD STYLEGIMLET POINT (TYPE A, AB OR BA)
SHOULDER DIAMETER0.605 INCHES MINIMUM AND 0.642 INCHES MAXIMUM FIRST SHOULDER
SHOULDER SHAPEROUND FIRST SHOULDER
SHOULDER LENGTH0.312 INCHES MINIMUM FIRST SHOULDER
WIDTH BETWEEN FLATS0.906 INCHES MINIMUM AND 0.937 INCHES MAXIMUM
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONASTM A153-60 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTZINC OVERALL


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