5360-01-282-9979 SPRING,HELICAL,COMPRESSION Index 5306-01-282-9981 BOLT,SHEAR

National Stock Number:
5305-01-282-9980

Federal Supply Class:
5305

National Item Identification Number:
012829980

Description:
SETSCREW

Detail:
An externally threaded device whose threaded portion is of one nominal diameter with or without a head and having a cup, cone, or other type of machined point designed to prevent or restrict relative movement of parts and designed to be driven with either a wrench or inserted driver. A locking feature may be incorporated in the design of the head or threads.


Manufacturer Information:
FF-S-21081348FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC
MS51955-11096906MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M


Techincal Specification:
DEPARTURE FROM CITED DESIGNATORAS MODIFIED BY SURFACE TREATMENT
FASTENER LENGTH2.320 INCHES MINIMUM AND 2.500 INCHES MAXIMUM
HARDNESS RATING30.0 ROCKWELL C MINIMUM AND 37.0 ROCKWELL C MAXIMUM OVERALL
HEAD HEIGHT0.544 INCHES MINIMUM AND 0.582 INCHES MAXIMUM
HEAD STYLESQUARE
INTERNAL DRIVE STYLEW/O INTERNAL DRIVE
MATERIAL DOCUMENT AND CLASSIFICATION66 FED STD ALL MATERIAL RESPONSES OVERALL
PART NAME ASSIGNED BY CONTROLLING AGENCYSETSCREW
NOMINAL THREAD DIAMETER0.750 INCHES
NONDEFINITIVE SPEC/STD DATA1 TYPE AND 4 STYLE
POINT STYLECUP
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONASTM B633 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTZINC OVERALL
THREAD CLASS2A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH2.120 INCHES MINIMUM AND 2.500 INCHES MAXIMUM
THREAD QUANTITY PER INCH10
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
WIDTH BETWEEN FLATS0.729 INCHES MINIMUM AND 0.750 INCHES MAXIMUM


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