5306-00-281-5210, BOLT,MACHINE

National Stock Number:
5306-00-281-5210

Federal Supply Class:
5306

National Item Identification Number:
002815210

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:

5249248	21450	ARMY WEAPONS COMMAND ATTN AMSWE-REE-S
915560	12204	DAIMLER CHRYSLER

Techincal Specification:

DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER	0.093 INCHES MINIMUM AND 0.125 INCHES MAXIMUM FIRST HOLE
FASTENER LENGTH	0.984 INCHES MINIMUM AND 1.016 INCHES MAXIMUM
FEATURES PROVIDED	UNFINISHED HEAD
HARDNESS RATING	15.2 ROCKWELL C MINIMUM AND 25.4 ROCKWELL C MAXIMUM OVERALL
HEAD HEIGHT	0.218 INCHES MINIMUM AND 0.250 INCHES MAXIMUM
HEAD STYLE	HEXAGON
MATERIAL DOCUMENT AND CLASSIFICATION	QQ-S-631 FS1030 FED SPEC 1ST MATERIAL RESPONSE OR QQ0S0631 FS1037 FED SPEC 2ND MATERIAL RESPONSE OR QQ-S-631 FS1038 FED SPEC 3RD MATERIAL RESPONSE OR QQ-S-634 FS1035 FED SPEC 4TH MATERIAL RESPONSE OR QQ-S-634 FS1040 FED SPEC 5TH MATERIAL RESPONSE OVERALL
MATERIAL	STEEL COMP 1030 OR STEEL COMP 1037 OR STEEL COMP 1038 OR STEEL COMP 1035 OR STEEL COMP 1040 OVERALL
NOMINAL THREAD DIAMETER	0.375 INCHES
SHANK UNTHREADED HOLE DIAMETER	0.875 INCHES NOMINAL FIRST HOLE
WIDTH BETWEEN FLATS	0.546 INCHES MINIMUM AND 0.578 INCHES MAXIMUM
SURFACE TREATMENT	CADMIUM OR ZINC OVERALL
THREAD CLASS	3A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.859 INCHES MINIMUM AND 0.891 INCHES MAXIMUM
THREAD QUANTITY PER INCH	24
THREAD SERIES DESIGNATOR	UNF

Click here to Register for Free 30-day Trial