5306-00-057-2506 BOLT,SQUARE NECK Index 6685-00-057-2508 CONTROL,TEMPERATURE,INDICATING

National Stock Number:
5306-00-057-2507

Federal Supply Class:
5306

National Item Identification Number:
000572507

Description:
BOLT,SQUARE NECK

Detail:
A headed externally threaded fastener whose threaded portion is of one nominal diameter, with a square neck directly beneath the head.


Manufacturer Information:
2400272S125HILLMAN GROUP INC THE
ASME-B18.505047THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS
B18.580204AMERICAN NATIONAL STANDARDS INSTITUTE INCORPORATED
MS35751-2096906MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
MS35751-2196906MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M


Techincal Specification:
FASTENER LENGTH2.219 INCHES MINIMUM AND 2.281 INCHES MAXIMUM
HARDNESS RATING95.0 ROCKWELL B MAXIMUM OVERALL
HEAD DIAMETER0.563 INCHES MINIMUM AND 0.594 INCHES MAXIMUM
HEAD HEIGHT0.125 INCHES MINIMUM AND 0.145 INCHES MAXIMUM
HEAD STYLEROUND
MATERIALSTEEL OVERALL
MINIMUM TENSILE STRENGTH55000 POUNDS PER SQUARE INCH
NECK LENGTH0.125 INCHES MINIMUM AND 0.156 INCHES MAXIMUM
NECK WIDTH0.245 INCHES MINIMUM AND 0.260 INCHES MAXIMUM
NOMINAL THREAD DIAMETER0.250 INCHES
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONASTM B633 ASSN STD ALL TREATMENT RESPONSES OVERALL
SURFACE TREATMENTZINC OVERALL
THREAD CLASS2A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.750 INCHES MINIMUM
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
THREAD QUANTITY PER INCH20


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