5305-01-598-5899 SCREW,CAP,SOCKET HEAD 5305-01-598-6149 SCREW,CAP,SOCKET HEAD

National Stock Number:
5305-01-598-6145

Federal Supply Class:
5305

National Item Identification Number:
015986145

Description:
SCREW,MACHINE

Detail:
AN EXTERNALLY THREADED FASTENER WHOSE THREADED PORTION IS OF ONE NOMINAL DIAMETER, NO 0 (0.060 IN./1.5 MM) OR LARGER, DESIGNED TO BE HELD OR DRIVEN WITH EITHER A WRENCH OR AN INSERTED DRIVER OR BOTH (EXCLUDING INTERNAL SOCKET OR INTERNAL MULTIPLE SPLINE TYPES), IN SIZES BELOW NO. 10 (0.190 IN./5 MM). NO. 10 AND LARGER SIZES MUST HAVE A HEAD DESIGNED FOR ANY TYPE INSERTED DRIVER (EXCLUDING INTERNAL SOCKET OR INTERNAL 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. EXCLUDES BOLT, CLEVIS; BOLT, EXTERNALLY RELIEVED BODY; SCREW, EXTERNALLY RELIEVED BODY; AND SCREW, ASSEMBLED WASHER. SEE ALSO, SCREW, INSTRUMENT; BOLT, MACHINE; BOLT, INTERNAL WRENCHING; AND SCREW, CAP SOCKET HEAD.


Manufacturer Information:
12759-012650Y3H3FASTENAL COMPANY
295720Y3H3FASTENAL COMPANY


Techincal Specification:
FASTENER LENGTH1.250 INCHES NOMINAL
HEAD DIAMETER0.442 INCHES MINIMUM AND 0.477 INCHES MAXIMUM
HEAD HEIGHT0.153 INCHES NOMINAL
HEAD STYLEFLAT COUNTERSUNK
HEAD SURFACE TREATMENTZINC
INTERNAL DRIVE STYLECROSS RECESS TYPE 1
MINIMUM TENSILE STRENGTH60000 POUNDS PER SQUARE INCH
PART NAME ASSIGNED BY CONTROLLING AGENCYMACHINE SCREW,FLAT HEAD,CROSS RECESSED,ZINC PLATED
NOMINAL THREAD DIAMETER0.250 INCHES
SCREW MATERIAL DOCUMENT AND CLASSIFICATIONASME B18.6.3 ASSN STD SINGLE MATERIAL RESPONSE
SCREW MATERIALSTEEL
SCREW SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONFE/ZN PER ASTM F1941 ASSN STD SINGLE TREATMENT RESPONSE
SCREW SURFACE TREATMENTZINC
SHANK SURFACE TREATMENTZINC
THREAD CLASS2A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.097 INCHES NOMINAL
THREAD QUANTITY PER INCH20


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