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12 Point Bolt - Thread: 1/4-28, External Wrenching Bolt, Flanged, 12 Point, Cadmium Plated Steel Alloy, Drilled Head

Detail	Characteristic
EXTENDED WASHER DIAMETER	0.428 INCHES MINIMUM AND 0.438 INCHES MAXIMUM
EXTENDED WASHER THICKNESS	0.069 INCHES NOMINAL
FASTENER LENGTH	0.762 INCHES NOMINAL
GRIP DIAMETER	0.2485 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM
GRIP LENGTH	0.250 INCHES NOMINAL
HARDNESS RATING	39.0 ROCKWELL C MINIMUM OVERALL AND 43.0 ROCKWELL C MAXIMUM OVERALL
HEAD HEIGHT	0.300 INCHES NOMINAL
HEAD STYLE	DOUBLE HEXAGON W/HOLE
HOLE CONFIGURATION STYLE	DOUBLE HEXAGON LONGITUDINAL HOLE
HOLE DIAMETER	0.037 INCHES NOMINAL
HOLE TYPE	DRILLED
HOLE QUANTITY	4
MATERIAL	STEEL COMP 8740 OVERALL OR STEEL COMP E4340 OVERALL OR STEEL COMP 4340 OVERALL OR STEEL COMP 6150 OVERALL OR STEEL COMP 4140 OVERALL
MINIMUM TENSILE STRENGTH	180000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER	0.250 INCHES
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENT	CADMIUM OVERALL AND CHROMATE OVERALL
THREAD CLASS	3A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.492 INCHES MINIMUM
THREAD SERIES DESIGNATOR	UNF
THREAD QUANTITY PER INCH	28
WIDTH BETWEEN FLATS	0.304 INCHES MINIMUM AND 0.313 INCHES MAXIMUM

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Inventory	N/A {4}
Estimated Ship Date	N/A Ships in 1 Business Day
Inventory Note	N/A Need additional stock? Call (877) 920-1876 or email
Weight	N/A 0.015 lb
NSN	N/A 5306-00-942-2186
NIIN	N/A 00-942-2186
Part # Unpunctuated	N/A MS21250H04004
Minimum Order Note	N/A Minimum order is 5. Must order in increments of 1.
Country of Origin	N/A USA

Note	N/A Our inventory is extensive. The majority of the items listed in our catalog are stocked and available for immediate shipment.
California Residents	N/A Prop 65 Warning: This product may contain chemicals known to the State of California to cause cancer, and birth defects or other reproductive harm.

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