National Item Identification Number
01-299-7607
012997607
5305-01-299-7607
5305012997607
National Stock Number
Item Name
SCREW,CAP,HEXAGON HEAD
Federal Supply Class
5305
Description
An externally threaded fastener designed for insertion into holes in assembled parts, for mating with a preformed internal thread and for tightening or releasing by torquing the head. The threaded and unthreaded portions are both of the same nominal diameter of 0.190 inch (5 mm) or larger. Head dimensions and sizes of threaded and unthreaded portions shall conform to internationally recognized fastener standards. The thread length being the controlled dimension, the grip length is not specified. A locking feature may be incorporated in the design of the head or threads. Excludes BOLT, MACHINE; BOLT, EXTERNALLY RELIEVED BODY; BOLT, INTERNAL WRENCHING; and SCREW, CAP, SOCKET HEAD.
Commercial and Government Entity Code (Supplier Data)
78509
STANDARD NUT AND BOLT COMPANY
49 ABBOTT STREET
CUMBERLAND
RI
02864
508-675-1125
30003
Reference Numbers (Part Numbers)
1/2-20UNCX8 IN. LG GR 8
1551AS246-1
Required Categories
THREAD SERIES DESIGNATOR
NOMINAL THREAD DIAMETER
THREAD QUANTITY PER INCH
THR
Required Description
UNF
0.500 INCHES
20
2A
RIGHT-HAND
4.000 INCHES MINIMUM
7.880 INCHES MINIMU