5305-00-281-3294, SETSCREW

National Stock Number:
5305-00-281-3294

Federal Supply Class:
5305

National Item Identification Number:
002813294

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:

156972	58275	SASCO INC CANADIAN DIV
A308411	00000	ORDNANCE CORPS

Techincal Specification:

FASTENER LENGTH	0.734 INCHES MINIMUM AND 0.766 INCHES MAXIMUM
HEAD HEIGHT	0.172 INCHES MINIMUM AND 0.203 INCHES MAXIMUM
HEAD STYLE	SQUARE
INTERNAL DRIVE STYLE	W/O INTERNAL DRIVE
MATERIAL DOCUMENT AND CLASSIFICATION	QQ-S-630 FS1018 FED SPEC 1ST MATERIAL RESPONSE OR QQ-S-631 FED SPEC 2ND MATERIAL RESPONSE OR QQ-S-634 FED SPEC 3RD MATERIAL RESPONSE OR QQ-S-630 FED SPEC 4TH MATERIAL RESPONSE OR QQ-S-631 FED SPEC 5TH MATERIAL RESPONSE OR QQ-S-634 FED SPEC 6TH MATERIAL RESPONSE OR QQ-S-633 FED SPEC 7TH MATERIAL RESPONSE OR QQ-S-633 FED SPEC 8TH MATERIAL RESPONSE OVERALL
NOMINAL THREAD DIAMETER	0.250 INCHES
POINT DIAMETER	0.180 INCHES MINIMUM AND 0.183 INCHES MAXIMUM
POINT LENGTH	0.109 INCHES MINIMUM AND 0.141 INCHES MAXIMUM
POINT STYLE	DOG
WIDTH BETWEEN FLATS	0.234 INCHES MINIMUM AND 0.266 INCHES MAXIMUM
SURFACE TREATMENT	ZINC OVERALL
THREAD CLASS	1A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.516 INCHES MINIMUM AND 0.609 INCHES MAXIMUM
THREAD QUANTITY PER INCH	20
THREAD SERIES DESIGNATOR	UNIFIED NATIONAL COARSE (UNC)

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