5305-01-362-7255, SETSCREW

National Stock Number:
5305-01-362-7255

Federal Supply Class:
5305

National Item Identification Number:
013627255

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-200	81348	FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC
MS51476-14	96906	MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M

Techincal Specification:

FASTENER LENGTH	0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM
HARDNESS RATING	45.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM OVERALL
HEAD STYLE	HEADLESS (SETSCREW)
INTERNAL DRIVE STYLE	HEXAGON
MATERIAL DOCUMENT AND CLASSIFICATION	66 FED STD ALL MATERIAL RESPONSES OVERALL
MATERIAL	STEEL COMP 4032 OR STEEL COMP 4037 OR STEEL COMP 4137 OR STEEL COMP 4140 OR STEEL COMP 8630 OR STEEL COMP 8640 OVERALL
NOMINAL THREAD DIAMETER	0.313 INCHES
NONDEFINITIVE SPEC/STD DATA	1 TYPE AND 4 STYLE
POINT STYLE	CUP
WIDTH ACROSS FLATS	0.156 INCHES NOMINAL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	ASTM B633,TY 2 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENT	ZINC AND CHROMATE OVERALL
THREAD DIRECTION	RIGHT-HAND
THREAD CLASS	3A
THREAD SERIES DESIGNATOR	UNC
THREAD QUANTITY PER INCH	18

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