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:

THREAD SERIES DESIGNATOR	UNC
NOMINAL THREAD DIAMETER	0.500 INCHES
THREAD QUANTITY PER INCH	13
THREAD CLASS	2A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	2.286 INCHES MINIMUM
FASTENER LENGTH	2.440 INCHES MINIMUM AND
	2.500 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATION	66 FED STD ALL MATERIAL RESPONSES OVERALL
SURFACE TREATMENT	ZINC OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	ASTM B633 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
HARDNESS RATING	30.0 ROCKWELL C MINIMUM AND
	37.0 ROCKWELL C MAXIMUM OVERALL
HEAD STYLE	SQUARE
HEAD HEIGHT	0.361 INCHES MINIMUM AND
	0.369 INCHES MAXIMUM
WIDTH BETWEEN FLATS	0.484 INCHES MINIMUM AND
	0.500 INCHES MAXIMUM
INTERNAL DRIVE STYLE	W/O INTERNAL DRIVE
POINT STYLE	CUP
NONDEFINITIVE SPEC/STD DATA	1 TYPE AND
	4 STYLE
DEPARTURE FROM CITED DOCUMENT	MODIFIED BY SURFACE TREATMENT
PART NAME ASSIGNED BY CONTROLLING AGENCY	SETSCREW
SPEC/STD CONTROLLING DATA
MANUFACTURERS CODE	96906
DEFINITIVE GOVERNMENT SPEC/STD REFERENCE	MS51955-77

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