5306-01-050-9644, BOLT,MACHINE

5306-01-050-9643 BOLT,INTERNAL WRENCHING

National Stock Number:
5306-01-050-9644

Federal Supply Class:
5306

National Item Identification Number:
010509644

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:

B1821BH025C100C	80204	AMERICAN NATIONAL STANDARDS INSTITUTE INCORPORATED
FF-S-85	81348	FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC
MS18154-8L	96906	MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M

Techincal Specification:

FASTENER LENGTH	0.969 INCHES MINIMUM AND 1.000 INCHES MAXIMUM
FEATURES PROVIDED	FINISHED HEAD
HARDNESS RATING	32.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL
HEAD HEIGHT	0.150 INCHES MINIMUM AND 0.163 INCHES MAXIMUM
HEAD STYLE	HEXAGON
LOCKING FEATURE	PATCH OR STRIP THREADS
MATERIAL DOCUMENT AND CLASSIFICATION	SAE GRADE 8 ASSN STD ALL MATERIAL RESPONSES OVERALL
MATERIAL	STEEL COMP 1013 OR STEEL COMP 1015 OR STEEL COMP 1016 OR STEEL COMP 1017 OR STEEL COMP 1018 OR STEEL COMP 1019 OR STEEL COMP 1020 OR STEEL COMP 1021 OR STEEL COMP 1022 OR STEEL COMP 1023 OR STEEL COMP 1524 OR STEEL COMP 1025 OR STEEL COMP 1026 OR STEEL COMP 1527 OR STEEL COMP 1029 OR STEEL COMP 1030 OR STEEL COMP 1033 OR STEEL COMP 1034 OR STEEL COMP 1035 OR STEEL COMP 1536 OR STEEL COMP 1037 OR STEEL COMP 1038 OR STEEL COMP 1039 OR STEEL COMP 1040 OR STEEL COMP 1541 OVERALL
MINIMUM TENSILE STRENGTH	150000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER	0.250 INCHES
NONDEFINITIVE SPEC/STD DATA	2 TYPE AND 10P STYLE AND 8 GRADE
SPECIAL FEATURES	ONE 0.062 IN. DIA HOLE IN HEAD
WIDTH BETWEEN FLATS	0.428 INCHES MINIMUM AND 0.438 INCHES MAXIMUM
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-416 TY 2 CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENT	CADMIUM AND CHROMATE OVERALL
THREAD DIRECTION	RIGHT-HAND
THREAD CLASS	2A
THREAD LENGTH	0.938 INCHES MINIMUM
THREAD SERIES DESIGNATOR	UNC
THREAD QUANTITY PER INCH	20

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