5305-00-113-8480, SCREW,EXTERNALLY RELIEVED BODY

National Stock Number:
5305-00-113-8480

Federal Supply Class:
5305

National Item Identification Number:
001138480

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:

5522-160	11871	RECON/OPTICAL, INC.
5522-160	80294	BOURNS INSTRUMENTS INC

Techincal Specification:

DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER	0.109 INCHES MINIMUM AND 0.141 INCHES MAXIMUM
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER	0.765 INCHES MINIMUM AND 0.797 INCHES MAXIMUM
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY	2
FASTENER LENGTH	1.234 INCHES MINIMUM AND 1.266 INCHES MAXIMUM
FIRST DIAMETER FROM HEAD	0.243 INCHES MINIMUM AND 0.249 INCHES MAXIMUM
HEAD DIAMETER	0.389 INCHES MINIMUM AND 0.414 INCHES MAXIMUM
HEAD HEIGHT	0.155 INCHES MINIMUM AND 0.170 INCHES MAXIMUM
HEAD STYLE	FILLISTER
INTERNAL DRIVE STYLE	SLOT
MATERIAL DOCUMENT AND CLASSIFICATION	ASTM A108 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIAL	STEEL COMP 1010 OVERALL
NOMINAL THREAD DIAMETER	0.250 INCHES
SECOND DIAMETER FROM HEAD	0.200 INCHES MINIMUM AND 0.210 INCHES MAXIMUM
SPECIAL FEATURES	FIRST DIA THD
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-416,TY 1,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENT	CADMIUM OVERALL
THREAD CLASS	2A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.437 INCHES MINIMUM AND 0.495 INCHES MAXIMUM
THREAD SERIES DESIGNATOR	UNF
THREAD QUANTITY PER INCH	28

Click here to Register for Free 30-day Trial