HI-SHEAR CORPORATION | 73197 |
HI-SHEAR CORPORATION | 73197 |
THREAD CLASS | 3A |
THREAD DIRECTION | RIGHT-HAND |
THREAD LENGTH | 0.256 INCHES MINIMUM AND 0.296 INCHES MAXIMUM |
FASTENER LENGTH | 0.704 INCHES MINIMUM AND 0.724 INCHES MAXIMUM |
HEAD STYLE | FLAT COUNTERSUNK |
HEAD DIAMETER | 0.297 INCHES MINIMUM AND 0.302 INCHES MAXIMUM |
GRIP DIAMETER | 0.1885 INCHES MINIMUM AND 0.1895 INCHES MAXIMUM |
INTERNAL DRIVE STYLE | HIGH-TORQUE |
NOMINAL THREAD DIAMETER | 0.190 INCHES |
GRIP LENGTH | 0.428 INCHES MINIMUM AND 0.448 INCHES MAXIMUM |
THREAD QUANTITY PER INCH | 32 |
MINIMUM TENSILE STRENGTH | 160000 POUNDS PER SQUARE INCH |
COUNTERSINK ANGLE | 100.0 DEGREES NOMINAL |
SURFACE FINISH | 63.0 MICROINCHES GRIP |
MATERIAL | STEEL COMP 4140 OVERALL OR STEEL COMP E4340 OVERALL OR STEEL COMP 6150 OVERALL OR STEEL COMP 8735 OVERALL OR STEEL COMP 8740 OVERALL OR STEEL COMP 4130 OVERALL |
MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-5626 MIL SPEC 1ST MATERIAL RESPONSE OVERALL OR MIL-S-5400 MIL SPEC 2ND MATERIAL RESPONSE OVERALL OR MIL-S-8503 MIL SPEC 3RD MATERIAL RESPONSE OVERALL OR MIL-S-6098 MIL SPEC 4TH MATERIAL RESPONSE OVERALL OR MIL-S-6049 MIL SPEC 5TH MATERIAL RESPONSE OVERALL OR MIL-S-6758 MIL SPEC 6TH MATERIAL RESPONSE OVERALL |
SURFACE TREATMENT | CADMIUM OVERALL AND CHROMATE OVERALL |
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TY 2 CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
THREAD SERIES DESIGNATOR | UNF |
A SCREW, MACHINE or SCREW, CAP, SOCKET HEAD whose unthreaded portion is of specified grip length, plated or unplated, and is machined to a tolerance of one thousandth ( . 1 IN.) ( . 25 mm) or less of a specific diameter for items (1. IN.) (25 mm) or less in diameter. Items over (1. IN.) (25 mm) in diameter shall have a tolerance of fifteen ten thousandths ( . 15 IN.) ( . 38 mm) or less. The nominal major diameter of the threads shall be at least one thousandth ( . 1 IN.) ( . 25 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 designed to be held or driven with an inserted driver. It is not designed for rotation by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads. |