5305-01-222-2313, SCREW,EXTERNALLY RELIEVED BODY

National Stock Number:
5305-01-222-2313

Federal Supply Class:
5305

National Item Identification Number:
012222313

Description:
SCREW,EXTERNALLY RELIEVED BODY

Detail:
An externally threaded fastener whose threaded portion is of one nominal diameter, and whose unthreaded portion has been machined or ground in one or more places or over its entire length to a maximum diameter less than the minimum pitch diameter of the thread (excludes undercut for thread relief). It is No. 0 (0.060 IN.) (1.5 mm) or larger, and is designed to be held or driven with either a wrench or inserted driver (excluding internal socket and multiple spline types) or both in sizes below No. 10 (0.190 IN.) (5 mm) and larger sizes must have a head designed for any type inserted driver (excluding internal socket and multiple spline types) but may also be designed for external wrenching. A locking feature may be incorporated in the design of the head or threads. See also BOLT, EXTERNALLY RELIEVED BODY and BOLT, INTERNAL WRENCHING.

Manufacturer Information:

6550W78P003	70318	ALLMETAL SCREW PRODUCTS CORP
6550W78P003	97424	AMETEK INC

Techincal Specification:

DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER	0.660 INCHES MINIMUM AND 0.700 INCHES MAXIMUM
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY	1
FASTENER LENGTH	1.170 INCHES MINIMUM AND 1.190 INCHES MAXIMUM
FIRST DIAMETER FROM HEAD	0.094 INCHES MINIMUM AND 0.098 INCHES MAXIMUM
HEAD DIAMETER	0.263 INCHES NOMINAL
HEAD HEIGHT	0.092 INCHES NOMINAL
HEAD STYLE	PAN
INTERNAL DRIVE STYLE	CROSS RECESS TYPE 1
MATERIAL DOCUMENT AND CLASSIFICATION	AISI ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIAL	STEEL COMP 303 OVERALL
NOMINAL THREAD DIAMETER	0.138 INCHES
SPECIAL FEATURES	PAINT HEAD BLACK COLOR 3703B PER FED STD 595
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-416 TY 3 CL 1 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENT	CADMIUM AND PHOSPHATE OVERALL
THREAD CLASS	3A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM
THREAD QUANTITY PER INCH	32
THREAD SERIES DESIGNATOR	UNIFIED NATIONAL COARSE (UNC)

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