5306-01-556-4212 BOLT,MACHINE Index 5306-01-557-6074 BOLT,MACHINE

National Stock Number:
5306-01-556-6417

Federal Supply Class:
5306

National Item Identification Number:
015566417

Description:
BOLT,MACHINE

Detail:
An externally threaded fastener designed for insertion through holes in assembled parts and normally intended to be tightened or released by torquing a nut. The threaded and unthreaded portions are both of one nominal diameter of 0.190 inch (5 mm) or larger. The head is not designed to be held or driven with an inserted driver or by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads. Head dimensions and sizes of threaded and unthreaded portions shall conform to internationally recognized fastener standards. For items having a grip length portion machined to a tolerance of 0.0015 inch (0.038 mm) or less, BOLT, SHEAR. See also SCREW, CAP, HEXAGON HEAD and SCREW, MACHINE.


Manufacturer Information:
1003858261C19MIL-COTS CORPORATION
12759-005410Y3H3FASTENAL COMPANY
140070Y3H3FASTENAL COMPANY
3820414C2338X5ND DEFENSE LLC
3820414C25F5P2ASF LOGISTICS, LLC


Techincal Specification:
THREAD CLASS2A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.75 INCHES NOMINAL
THREAD QUANTITY PER INCH20
THREAD SERIES DESIGNATORUNC
FASTENER LENGTH1.250 INCHES NOMINAL
HEAD HEIGHT0.150 INCHES MINIMUM AND 0.163 INCHES MAXIMUM
HEAD STYLEHEXAGON
MATERIALSTEEL OVERALL
III PART NAME ASSIGNED BY CONTROLLING AGENCYBOLT,HEX FLANGE 1/4-20 X 1-1/4
PROPRIETARY CHARACTERISTICSNPAC
MINIMUM TENSILE STRENGTH150000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER0.250 INCHES
WIDTH BETWEEN FLATS0.438 INCHES NOMINAL
SURFACE TREATMENTOIL OVERALL


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