5305-01-231-1297 SCREW,TAPPING Index 5306-01-231-1299 BOLT,SHEAR

National Stock Number:
5305-01-231-1298

Federal Supply Class:
5305

National Item Identification Number:
012311298

Description:
SCREW,TAPPING

Detail:
A hardened externally threaded fastener whose thread extends to the bearing surface of the head. The thread may be fluted or otherwise designed to cut or form its own mating thread. Excludes SCREW, ASSEMBLED WASHER.


Manufacturer Information:
164081024617GENERAL MOTORS CORP
16408107X677GENERAL MOTORS LLC
942301024617GENERAL MOTORS CORP


Techincal Specification:
NONMACHINE THREAD STYLEDOG TYPE (TYPE B OR C)
NONMACHINE NOMINAL THREAD DIAMETER0.164 INCHES
FASTENER LENGTH0.984 INCHES MINIMUM AND
1.016 INCHES MAXIMUM
MATERIALSTEEL OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONGM6010-M FSCM 24617 MFR REF SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENTPHOSPHATE OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONGM4435-M FSCM 24617 MFR REF SINGLE TREATMENT RESPONSE OVERALL
HARDNESS RATING80.0 ROCKWELL B MINIMUM AND
107.0 ROCKWELL B MAXIMUM OVERALL
HEAD STYLEHEXAGON EXTENDED WASHER
HEAD HEIGHT0.115 INCHES MINIMUM AND
0.160 INCHES MAXIMUM
WIDTH BETWEEN FLATS0.244 INCHES MINIMUM AND
0.250 INCHES MAXIMUM
EXTENDED WASHER DIAMETER0.322 INCHES MINIMUM AND
0.348 INCHES MAXIMUM
EXTENDED WASHER THICKNESS0.019 INCHES MINIMUM AND
0.050 INCHES MAXIMUM
INTERNAL DRIVE STYLEW/O INTERNAL DRIVE
FEATURES PROVIDEDCASEHARDENED


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