5305-01-078-4446, SCREW,EXTERNALLY RELIEVED BODY

National Stock Number:
5305-01-078-4446

Federal Supply Class:
5305

National Item Identification Number:
010784446

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:

29268-1

09344

ROCKWELL COLLINS, INC. DBA RC DISPLAYS SYSTEMS

Techincal Specification:

DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER	0.215 INCHES MINIMUM AND 0.225 INCHES MAXIMUM
COUNTERSINK ANGLE	98.0 DEGREES MINIMUM AND 102.0 DEGREES MAXIMUM
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY	1
FASTENER LENGTH	0.385 INCHES NOMINAL
FIRST DIAMETER FROM HEAD	0.067 INCHES MINIMUM AND 0.077 INCHES MAXIMUM
HEAD DIAMETER	0.225 INCHES NOMINAL
HEAD STYLE	FLAT COUNTERSUNK
INTERNAL DRIVE STYLE	CROSS RECESS TYPE 1
MATERIAL DOCUMENT AND CLASSIFICATION	QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIAL	STEEL CORROSION RESISTING OVERALL
NOMINAL THREAD DIAMETER	0.112 INCHES
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-35,TYPE 2 FED SPEC 1ST TREATMENT RESPONSE OR MIL-C-13924,CL4 MIL SPEC 2ND TREATMENT RESPONSE OVERALL
SURFACE TREATMENT	PASSIVATE AND OXIDE OVERALL
THREAD CLASS	2A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.111 INCHES MINIMUM AND 0.121 INCHES MAXIMUM
THREAD QUANTITY PER INCH	40
THREAD SERIES DESIGNATOR	UNIFIED NATIONAL COARSE (UNC)

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