Check the listing for details. (100) BOEING BOLT CLOSE 3M33-4H4 5306-00-857-6655. Condition: New. Listed at 50.00 USD. TECHNICAL CHARACTERISTICS - FLIS -------------------------------- NSN: 5306-00-857-6655 INC: 27851 FIIG: A003B0 ITEM NAME: BOLT,CLOSE TOLERANC DEFINITION: AN EXTERNALLY THREADED FASTENER WHOSE UNTHREADED PORTION IS OF A SPECIFIED GRIP LENGTH, PLATED OR UNPLATED, AND IS MACHINED TO A TOLERANCE OF ONE THOUSANDTH (0.001) OF AN INCH (0.025 MM) OR LESS OF A SPECIFIC DIAMETER FOR ITEMS ONE INCH (25 MM) OR LESS IN DIAMETER. ITEMS OVER ONE INCH (25 MM) IN DIAMETER SHALL HAVE A TOLERANCE OF FIFTEEN TEN-THOUSANDTHS (0.0015) OF AN INCH (0.038 MM) OR LESS. THE NOMINAL MAJOR DIAMETER OF THE THREADS SHALL BE AT LEAST ONE THOUSANDTH (0.001) OF AN INCH (0.025 MM) BELOW THE MINIMUM SHANK DIAMETER, BUT NOT BELOW THE MINIMUM MAJOR DIAMETER FOR APPLICABLE CLASS OF FIT, AS SHOWN IN THE SCREW THREAD STANDARDS, FED STD H28 AND/OR OTHER NATIONALLY RECOGNIZED STANDARDS. THE HEAD IS NOT DESIGNED TO BE HELD OR DRIVEN WITH AN INSERTED DRIVER, NOR IS IT DESIGNED FOR ROTATION BY THE THUMB AND FINGERS. A LOCKING FEATURE MAY BE INCORPORATED IN THE DESIGN OF THE HEAD OR THREADS. FOR ITEMS HAVING CLOSE TOLERANCE, AND FABRICATED FROM MATERIAL HAVING 160,000 POUNDS PER SQUARE INCH (1100 MEGAPASCALS) MINIMUM TENSILE STRENGTH, SEE BOLT, SHEAR. FOR ITEMS FABRICATED FROM MATERIAL HAVING LESS THAN 160,000 POUNDS PER SQUARE INCH (1100 MEGAPASCALS) MINIMUM TENSILE STRENGTH AND NOT HAVING A CLOSE TOLERANCE, SEE BOLT, MACHINE. CHARACTERISTIC VALUE THREAD CLASS 3A THREAD DIRECTION RIGHT-HAND THREAD LENGTH 0.469 INCHES MINIMUM FASTENER LENGTH 0.719 INCHES NOMINAL HEAD STYLE HEXAGON HEAD HEIGHT 0.156 INCHES NOMINAL WIDTH BETWEEN FLATS 0.438 INCHES NOMINAL HOLE DIAMETER 0.046 INCHES NOMINAL GRIP DIAMETER 0.2492 INCHES NOMINAL NOMINAL THREAD DIAMETER 0.250 INCHES GRIP LENGTH 0.250 INCHES NOMINAL HOLE QUANTITY 2 HOLE TYPE DRILLED THREAD QUANTITY PER INCH 28 HARDNESS RATING 24.0 ROCKWELL C MINIMUM OVERALL AND 44.0 ROCKWELL C MAXIMUM OVERALL HOLE CONFIGURATION STYLE HEXAGON FLATS SURFACE FINISH 32.0 MICROINCHES GRIP SPECIAL FEATURES TENSILE STRENGTH SET AT ROOM TEMPERATURE NOT ABOVE 1200 DEG F MATERIAL IRON ALLOY 660 OVERALL MATERIAL DOCUMENT AND AMS 5735 ASSN STD SINGLE MATERIAL RESPONSE OVERALL CLASSIFICATION