| AMERICAN NATIONAL STANDARDS INSTITUTE, INCORPORATED | 80204 |
| AMERICAN SOCIETY OF MECHANICAL ENGINEERS | 5047 |
| FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC | 81348 |
| AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC | 756 |
| MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M | 96906 |
| THREAD CLASS | 2A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.750 INCHES MINIMUM |
| FASTENER LENGTH | 4.469 INCHES MINIMUM AND 4.531 INCHES MAXIMUM |
| HEAD STYLE | BUTTON |
| HEAD DIAMETER | 0.563 INCHES MINIMUM AND 0.594 INCHES MAXIMUM |
| HEAD HEIGHT | 0.125 INCHES MINIMUM AND 0.145 INCHES MAXIMUM |
| NECK LENGTH | 0.125 INCHES MINIMUM AND 0.156 INCHES MAXIMUM |
| NOMINAL THREAD DIAMETER | 0.250 INCHES |
| THREAD QUANTITY PER INCH | 20 |
| MINIMUM TENSILE STRENGTH | 55000 POUNDS PER SQUARE INCH |
| HARDNESS RATING | 95.0 ROCKWELL B MAXIMUM OVERALL |
| NECK WIDTH | 0.245 INCHES MINIMUM AND 0.260 INCHES MAXIMUM |
| MATERIAL | STEEL OVERALL |
| MATERIAL DOCUMENT AND CLASSIFICATION | SAE GR 1 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| SURFACE TREATMENT | ZINC OVERALL |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | ASTM B633 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| THREAD SERIES DESIGNATOR | UNC |
| A headed externally threaded fastener whose threaded portion is of one nominal diameter, with a square neck directly beneath the head. |
ANSI Z87.1
$0.00
ANSI B74.18
$0.00
ANSI B212.1
$0.00
ANSI Z21.22
$0.00
ANSI Z359.1
$0.00