5306-01-555-4985, BOLT,MACHINE

National Stock Number:
5306-01-555-4985

Federal Supply Class:
5306

National Item Identification Number:
015554985

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:

10038479	61C19	MIL-COTS CORPORATION
12759-00458	0Y3H3	FASTENAL COMPANY
19932	0Y3H3	FASTENAL COMPANY
3821089C1	338X5	ND DEFENSE LLC
5310000445-00	535V1	PLASAN NORTH AMERICA, INC.

Techincal Specification:

MINIMUM TENSILE STRENGTH	120000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER	0.375 INCHES
SPECIAL FEATURES	TYPICAL CASE HARDNESS IS RATED ROCKWELL C 40 MINIMUM; CASE DEPTH 0.005 INCH TO 0.011 INCH; TYPICAL CORE HARDNESS IS RATED ROCKWELL C 25 TO 34.
WIDTH BETWEEN FLATS	0.552 INCHES MINIMUM AND 0.562 INCHES MAXIMUM
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	ASTM F1941, FE/ZN 3A ASSN STD SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENT	ZINC OVERALL
THREAD CLASS	2A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	1.210 INCHES MINIMUM AND 1.270 INCHES MAXIMUM
THREAD QUANTITY PER INCH	16
THREAD SERIES DESIGNATOR	UNC
EXTENDED WASHER DIAMETER	0.771 INCHES MINIMUM AND 0.793 INCHES MAXIMUM
FASTENER LENGTH	1.210 INCHES MINIMUM AND 1.270 INCHES MAXIMUM
FEATURES PROVIDED	CASEHARDENED
HEAD HEIGHT	0.307 INCHES MINIMUM AND 0.331 INCHES MAXIMUM
HEAD STYLE	CHAMFER SERRATED FLANGE
MATERIAL	STEEL OVERALL
III PART NAME ASSIGNED BY CONTROLLING AGENCY	BOLT,HEX FLANGD 3/8-16 X 1-1/4
PROPRIETARY CHARACTERISTICS	NPAC

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