5306-01-038-8687, BOLT,MACHINE

National Stock Number:
5306-01-038-8687

Federal Supply Class:
5306

National Item Identification Number:
010388687

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:

9419376

24617

GENERAL MOTORS CORP

Techincal Specification:

EXTENDED WASHER DIAMETER	0.513 INCHES MINIMUM AND 0.531 INCHES MAXIMUM
EXTENDED WASHER THICKNESS	0.019 INCHES MINIMUM AND 0.028 INCHES MAXIMUM
FASTENER LENGTH	0.970 INCHES MINIMUM AND 1.000 INCHES MAXIMUM
FEATURES PROVIDED	UNFINISHED HEAD
HARDNESS RATING	22.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM OVERALL
HEAD HEIGHT	0.178 INCHES MINIMUM AND 0.191 INCHES MAXIMUM
HEAD STYLE	HEXAGON EXTENDED WASHER
LOCKING FEATURE	LOCKING TEETH BEARING SURFACE OF HEAD
MATERIAL DOCUMENT AND CLASSIFICATION	SAE ASSN STD ALL MATERIAL RESPONSES OVERALL
MATERIAL	STEEL COMP 1018 OR STEEL COMP 1021 OR STEEL COMP 1022 OVERALL
MINIMUM TENSILE STRENGTH	115000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER	0.250 INCHES
WIDTH BETWEEN FLATS	0.367 INCHES MINIMUM AND 0.375 INCHES MAXIMUM
SURFACE TREATMENT	ZINC OVERALL
THREAD CLASS	2A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.870 INCHES MINIMUM AND 1.000 INCHES MAXIMUM
THREAD QUANTITY PER INCH	20
THREAD SERIES DESIGNATOR	UNRC

Click here to Register for Free 30-day Trial