National Item Identification Number
01-438-3450
014383450
5305-01-438-3450
5305014383450
National Stock Number
Item Name
SCREW,CAP,SOCKET HEAD
Federal Supply Class
5305
Description
An externally threaded fastener whose threaded portion is of one nominal diameter. The head has an internal socket or multiple spline for use with an inserted driver. A locking feature may be incorporated in the design of the head or threads. Excludes items with bevel (conical) heads. See BOLT, INTERNAL WRENCHING. Excludes SCREW, SHOULDER; and SCREW, MACHINE.
Commercial and Government Entity Code (Supplier Data)
15852
W S DARLEY & CO
2000 ANSON DR
MELROSE PARK
IL
60160
708-345-8050
15852
W S DARLEY & CO
2000 ANSON DR
MELROSE PARK
IL
60160
708-345-8050
15852
W S DARLEY & CO
2000 ANSON DR
MELROSE PARK
IL
60160
708-345-8050
Reference Numbers (Part Numbers)
B229 REF NO 55
Z10100820033
5401400
Required Categories
THREAD SERIES DESIGNATOR
NOMINAL THREAD DIAMETER
THREAD QUANTITY PER INCH
FAS
Required Description
UNC
0.250 INCHES
20
0.375 INCHES NOMINAL
STEEL OVERALL
ASTM A167, 18-8SS AS