5306-01-085-3870 BOLT,MACHINE Index 5305-01-085-3873 SCREW,MACHINE

National Stock Number:
5306-01-085-3871

Federal Supply Class:
5306

National Item Identification Number:
010853871

Description:
BOLT,MACHINE

Detail:
An externally threaded fastener designed for insertion through holes in assembled parts and normally intended to be tightened or released by torquing a nut. The threaded and unthreaded portions are both of one nominal diameter of 0.190 inch (5 mm) or larger. The head is not designed to be held or driven with an inserted driver or by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads. Head dimensions and sizes of threaded and unthreaded portions shall conform to internationally recognized fastener standards. For items having a grip length portion machined to a tolerance of 0.0015 inch (0.038 mm) or less, BOLT, SHEAR. See also SCREW, CAP, HEXAGON HEAD and SCREW, MACHINE.


Manufacturer Information:
AS917010U583SAE INTERNATIONAL
AS9170181343SOCIETY OF AUTOMOTIVE ENGINEERS INC
MS9170-220U583SAE INTERNATIONAL
MS9170-2281343SOCIETY OF AUTOMOTIVE ENGINEERS INC
MS9170-2296906MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M


Techincal Specification:
THREAD DIRECTIONRIGHT-HAND
FASTENER LENGTH1.490 INCHES MINIMUM AND
1.510 INCHES MAXIMUM
MATERIALSTEEL COMP 8740 OVERALL
THREAD LENGTH0.740 INCHES MINIMUM AND
0.820 INCHES MAXIMUM
HEAD STYLEDOUBLE HEXAGON W/HOLE
THREAD SERIES DESIGNATORUNF
NOMINAL THREAD DIAMETER0.250 INCHES
THREAD QUANTITY PER INCH28
THREAD CLASS3A
MATERIAL DOCUMENT AND CLASSIFICATIONAMS6322 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENTOXIDE OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONAMS2485 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
HARDNESS RATING26.0 ROCKWELL C MINIMUM AND
32.0 ROCKWELL C MAXIMUM OVERALL
MINIMUM TENSILE STRENGTH125000 POUNDS PER SQUARE INCH
HEAD HEIGHT0.320 INCHES MINIMUM AND
0.340 INCHES MAXIMUM
WIDTH BETWEEN FLATS0.304 INCHES MINIMUM AND
0.313 INCHES MAXIMUM
EXTENDED WASHER DIAMETER0.428 INCHES MINIMUM AND
0.448 INCHES MAXIMUM
EXTENDED WASHER THICKNESS0.060 INCHES MINIMUM AND
0.070 INCHES MAXIMUM
HOLE CONFIGURATION STYLEDOUBLE HEXAGON LONGITUDINAL HOLE
HOLE TYPEDRILLED
HOLE QUANTITY4
HOLE DIAMETER0.070 INCHES NOMINAL
GRIP LENGTH0.690 INCHES MINIMUM AND
0.750 INCHES MAXIMUM
SURFACE FINISH63.0 MICROINCHES BEARING SURFACE OF HEAD
63.0 MICROINCHES GRIP
32.0 MICROINCHES THREADS
FEATURES PROVIDEDFINISHED HEAD


Click here to Register for Free 30-day Trial