5305-01-130-9470 SCREW,DRIVE Index 5305-01-130-9472 SCREW,CAP,HEXAGONHEAD

National Stock Number:
5305-01-130-9471

Federal Supply Class:
5305

National Item Identification Number:
011309471

Description:
SCREW,CAP,SOCKET HEAD

Detail:
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.


Manufacturer Information:
189479316764GENERAL MOTORS CORP DELCO REMY DIV
18947931LW55BORGWARNER PDS (ANDERSON), L.L.C.


Techincal Specification:
FASTENER LENGTH2.605 INCHES MINIMUM AND 2.650 INCHES MAXIMUM
FEATURES PROVIDEDFINISHED HEAD
HARDNESS RATING32.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL
HEAD HEIGHT0.306 INCHES MINIMUM AND 0.312 INCHES MAXIMUM
HEAD DIAMETER0.450 INCHES MINIMUM AND 0.460 INCHES MAXIMUM
HEAD STYLEFLAT CHAMFER
INTERNAL DRIVE STYLEHEXAGON
MATERIALSTEEL OVERALL
NOMINAL THREAD DIAMETER0.312 INCHES
PURCHASE DESCRIPTION IDENTIFICATION16764-P30S31S1
SPECIAL FEATURESHIGH GRADE ALLOY STEEL;USED ON AVCO STARTER 1114673;LUBRICANT FINISH,DRY TO TOUCH,PER GM4435-M,CODE A72; GM1131-M,TYPE D SEALER AROUND FLAT UNDER THE HEAD;0.2712 IN. MIN. AND 0.2752 IN. MAX. PITCH DIA. OF THREADEDPORTION;0.2764 IN. MAX. PITCH DIA. AFTER PHOSPHATE COATING;HEAD BEARING SURFACE MUST BE FREE OF TOOL MARKS; 0.850 IN. MIN. LG UNTHREADED PORTION OF FASTENER;BALL-TYPE INTERNAL WRENCHING FACILITY;FLAT U.S. STANDARD SCREW POINT,W/ CHAMFER 35 DEG. MIN. AND 40 DEG. MAX. TO MINOR DIA.
WIDTH ACROSS FLATS0.250 INCHES MINIMUM AND 0.253 INCHES MAXIMUM
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONG-4435-M,CODE A72 MFR REF SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTPHOSPHATE OVERALL
THREAD DIRECTIONRIGHT-HAND
THREAD CLASS2A
THREAD LENGTH1.485 INCHES MINIMUM AND 1.800 INCHES MAXIMUM
THREAD SERIES DESIGNATORUNC
THREAD QUANTITY PER INCH18


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