5306-00-579-5395 BOLT,MACHINE Index 5305-00-579-5408 THUMBSCREW

National Stock Number:
5306-00-579-5406

Federal Supply Class:
5306

National Item Identification Number:
005795406

Description:
BOLT,RIBBED SHOULDER

Detail:
An externally threaded fastener whose threaded portion is of one nominal diameter. It has a series of longitudinal ribs, splines or serrations on all or a part of the shoulder. The minor diameter of the ribs must be greater than the major diameter of the threads. See also BOLT, RIBBED NECK.


Manufacturer Information:
315080W357PDI GROUND SUPPORT SYSTEMS, INC.
852812518876U S ARMY AVIATION AND MISSILE COMMAND


Techincal Specification:
DISTANCE FROM LARGEST DIAMETER OF BEARING SURFACE OF HEAD TO RIBS0.062 INCHES NOMINAL
FASTENER LENGTH1.719 INCHES MINIMUM AND 1.871 INCHES MAXIMUM
FEATURES PROVIDEDCASEHARDENED
HARDNESS RATING20.0 ROCKWELL C MINIMUM AND 24.0 ROCKWELL C MAXIMUM OVERALL
HEAD DIAMETER0.750 INCHES NOMINAL
HEAD HEIGHT0.229 INCHES MINIMUM AND 0.239 INCHES MAXIMUM
HEAD STYLEPAN NO. 2
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-634 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 1020 OVERALL
MINIMUM TENSILE STRENGTH110000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER0.500 INCHES
RIB LENGTH0.552 INCHES MINIMUM AND 0.562 INCHES MAXIMUM
RIB MAJOR DIAMETER0.552 INCHES MINIMUM AND 0.562 INCHES MAXIMUM
SHOULDER DIAMETER0.526 INCHES MINIMUM AND 0.531 INCHES MAXIMUM FIRST SHOULDER
SHOULDER LENGTH0.552 INCHES MINIMUM AND 0.562 INCHES MAXIMUM FIRST SHOULDER
SHOULDER SHAPERIBBED FIRST SHOULDER
SURFACE TREATMENTCADMIUM OVERALL
THREAD CLASS2A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.844 INCHES MINIMUM AND 0.906 INCHES MAXIMUM
THREAD SERIES DESIGNATORUNF
THREAD QUANTITY PER INCH20


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