5305-01-581-8986 SCREW,MACHINE Index 5305-01-581-8989 SCREW,MACHINE

National Stock Number:
5305-01-581-8987

Federal Supply Class:
5305

National Item Identification Number:
015818987

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:
BACB30VF4K706725SPS TECHNOLOGIES, LLC
BACB30VF4K717446HUCK INTERNATIONAL, INC
BACB30VF4K71RC86HOWMET GLOBAL FASTENING SYSTEMS INC
BACB30VF4K727624SPS TECHNOLOGIES LLC
BACB30VF4K773197HI-SHEAR CORPORATION
BACB30VF4K781205THE BOEING COMPANY


Techincal Specification:
COLORBLACK
COUNTERSINK ANGLE99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM
FASTENER LENGTH0.798 INCHES MINIMUM AND 0.818 INCHES MAXIMUM
HEAD DIAMETER0.364 INCHES MINIMUM AND 0.397 INCHES MAXIMUM
HEAD STYLEFLAT COUNTERSUNK
HEAD SURFACE TREATMENTALUMINUM
INTERNAL DRIVE STYLETORQUE-SET RIBBED
PART NAME ASSIGNED BY CONTROLLING AGENCYBOLT,100 DEG REDUCED HEAD, CROSS RECESS, 95 KSI SHEAR, SHORT THREAD, 6AL-4V TITANIUM
NOMINAL THREAD DIAMETER0.250 INCHES
SCREW SURFACE TREATMENTALUMINUM
SCREW MATERIALTITANIUM ALLOY
SHANK SURFACE TREATMENTALUMINUM
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.365 INCHES MINIMUM AND 0.375 INCHES MAXIMUM
THREAD SERIES DESIGNATORUNIFIED NATIONAL JOINT FINE (UNJF)
THREAD QUANTITY PER INCH28


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