5305-01-213-4821 SCREW,MACHINE Index 5306-01-213-4823 BOLT,SHEAR

National Stock Number:
5306-01-213-4822

Federal Supply Class:
5306

National Item Identification Number:
012134822

Description:
BOLT,SHEAR

Detail:
A high strength, 160,000 pounds per square inch (1100 megapascals) minimum tensile strength externally threaded fastener designed for use in applications involving great shear stress. The head is designed to accommodate an external wrench or driver. 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. The unthreaded portion is of specific 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. A locking feature may be incorporated in the design of the head or threads. See BOLT, MACHINE and BOLT, CLEVIS.


Manufacturer Information:
SS5211-4H806725SPS TECHNOLOGIES, LLC
SS5211-4H806950HOWMET GLOBAL FASTENING SYSTEMS INC
SS5211-4H827624SPS TECHNOLOGIES LLC
SS5211-4H850945MERCURY AEROSPACE FASTENERS INC
SS5211-4H856878SPS TECHNOLOGIES, LLC
SS5211-4H878286SIKORSKY AIRCRAFT CORPORATION
SS5211-4H880539SPS TECHNOLOGIES, LLC
SS5211-4H884256AVIBANK MFG., INC.
SS5211-4H892215HOWMET GLOBAL FASTENING SYSTEMS INC


Techincal Specification:
EXTENDED WASHER DIAMETER0.428 INCHES MINIMUM AND 0.438 INCHES MAXIMUM
EXTENDED WASHER THICKNESS0.059 INCHES MINIMUM AND 0.079 INCHES MAXIMUM
FASTENER LENGTH0.791 INCHES MINIMUM AND 0.821 INCHES MAXIMUM
GRIP LENGTH0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM
GRIP DIAMETER0.2485 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM
HARDNESS RATING39.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM OVERALL
HEAD HEIGHT0.290 INCHES MINIMUM AND 0.310 INCHES MAXIMUM
HEAD STYLEDOUBLE HEXAGON EXTENDED WASHER
HOLE CONFIGURATION STYLEDOUBLE HEXAGON LONGITUDINAL HOLE
HOLE DIAMETER0.032 INCHES MINIMUM AND 0.042 INCHES MAXIMUM
HOLE QUANTITY4
HOLE TYPEDRILLED
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-8844,CL1 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 4340 OVERALL
MINIMUM TENSILE STRENGTH180000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER0.250 INCHES
WIDTH BETWEEN FLATS0.312 INCHES NOMINAL
SURFACE FINISH32.0 MICROINCHES BEARING SURFACE OF HEAD
SURFACE FINISH32.0 MICROINCHES GRIP
SURFACE FINISH32.0 MICROINCHES THREADS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONAMS 2401 ASSN STD 1ST TREATMENT RESPONSE AND QQ-P-416,TY2 FED SPEC 2ND TREATMENT RESPONSE OVERALL
SURFACE TREATMENTCADMIUM AND CHROMATE OVERALL
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.531 INCHES MINIMUM AND 0.581 INCHES MAXIMUM
THREAD QUANTITY PER INCH28
THREAD SERIES DESIGNATORUNJF


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