National Item Identification Number
01-251-3445
012513445
5305-01-251-3445
5305012513445
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)
2V507
MC MASTER-CARR SUPPLY COMPANY
473 RIDGE RD
DAYTON
NJ
08810
732-329-3200
39428
Reference Numbers (Part Numbers)
91251A537
91251A537
Required Categories
THREAD SERIES DESIGNATOR
NOMINAL THREAD DIAMETER
THREAD QUANTITY PER INCH
THR
Required Description
UNC
0.250 INCHES
20
2A
RIGHT-HAND
0.400 INCHES MINIMUM AND
0.500 INCHES MA
