5306-01-170-3178 BOLT,MACHINE Index 5305-01-170-3180 SCREW,MACHINE

National Stock Number:
5305-01-170-3179

Federal Supply Class:
5305

National Item Identification Number:
011703179

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:
6550W73P00197424AMETEK INC


Techincal Specification:
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER0.255 INCHES MINIMUM AND 0.265 INCHES MAXIMUM
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY1
FIRST DIAMETER FROM HEAD0.074 INCHES MINIMUM AND 0.078 INCHES MAXIMUM
HEAD HEIGHT0.060 INCHES MINIMUM AND 0.080 INCHES MAXIMUM
INTERNAL DRIVE STYLECROSS RECESS TYPE 1
PROPRIETARY CHARACTERISTICSPACS


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