5305-01-287-5777, SETSCREW

National Stock Number:
5305-01-287-5777

Federal Supply Class:
5305

National Item Identification Number:
012875777

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:

MS51955-77

96906

MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M

Techincal Specification:

DEPARTURE FROM CITED DOCUMENT	MODIFIED BY SURFACE TREATMENT
FASTENER LENGTH	2.440 INCHES MINIMUM AND 2.500 INCHES MAXIMUM
HARDNESS RATING	30.0 ROCKWELL C MINIMUM AND 37.0 ROCKWELL C MAXIMUM OVERALL
HEAD HEIGHT	0.361 INCHES MINIMUM AND 0.369 INCHES MAXIMUM
HEAD STYLE	SQUARE
INTERNAL DRIVE STYLE	W/O INTERNAL DRIVE
MATERIAL DOCUMENT AND CLASSIFICATION	66 FED STD ALL MATERIAL RESPONSES OVERALL
NOMINAL THREAD DIAMETER	0.500 INCHES
NONDEFINITIVE SPEC/STD DATA	1 TYPE AND 4 STYLE
PART NAME ASSIGNED BY CONTROLLING AGENCY	SETSCREW
POINT STYLE	CUP
WIDTH BETWEEN FLATS	0.484 INCHES MINIMUM AND 0.500 INCHES MAXIMUM
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	ASTM B633 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENT	ZINC OVERALL
THREAD CLASS	2A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	2.286 INCHES MINIMUM
THREAD QUANTITY PER INCH	13
THREAD SERIES DESIGNATOR	UNC

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