1/2-13 UNC
| Part No. | Remarks | THREAD SIZE | THREAD CALL OUT | HD ±.005 | L ±.015 | D MAX. | IL REF. | LB ±.015 | ILB REF. | IATD MAX. | HOLE DEPTH MIN. | THREAD | .030 - .090 MAT. THICKNESS DRILL SIZE | .030 - .090 MAT. THICKNESS DECIMAL | .091 - .124 MAT. THICKNESS DRILL SIZE | .091 - .124 MAT. THICKNESS DECIMAL | .125 - .186 MAT. THICKNESS DRILL SIZE | .125 - .186 MAT. THICKNESS DECIMAL | .187 - OVER MAT. THICKNESS DRILL SIZE | .187 - OVER MAT. THICKNESS DECIMAL |
| AT502C6-813 | AT502C6-813 | 1/2-13 UNC | 813 | 0.8 | 0.935 | 0.7485 | 0.485 | NA | NA | NA | 0.96 | 1/2-13 UNC | 3/4 | 0.75 | 49/64 | 0.7656 | 25/32 | 0.781 | 51/64 | 0.797 |
| AT502C7-813 | AT502C7-813 | 1/2-13 UNC | 813 | 0.8 | 0.935 | 0.7485 | 0.485 | NA | NA | NA | 0.96 | 1/2-13 UNC | 3/4 | 0.75 | 49/64 | 0.7656 | 25/32 | 0.781 | 51/64 | 0.797 |
| AT502C8-813 | AT502C8-813 | 1/2-13 UNC | 813 | 0.8 | 0.935 | 0.7485 | 0.485 | NA | NA | NA | 0.96 | 1/2-13 UNC | 3/4 | 0.75 | 49/64 | 0.7656 | 25/32 | 0.781 | 51/64 | 0.797 |
| AT502C9-813 | AT502C9-813 | 1/2-13 UNC | 813 | 0.8 | 0.935 | 0.7485 | 0.485 | NA | NA | NA | 0.96 | 1/2-13 UNC | 3/4 | 0.75 | 49/64 | 0.7656 | 25/32 | 0.781 | 51/64 | 0.797 |
| AT502C9A-813 | AT502C9A-813 | 1/2-13 UNC | 813 | 0.8 | 0.935 | 0.7485 | 0.485 | NA | NA | NA | 0.96 | 1/2-13 UNC | 3/4 | 0.75 | 49/64 | 0.7656 | 25/32 | 0.781 | 51/64 | 0.797 |
| AT502C9B-813 | AT502C9B-813 | 1/2-13 UNC | 813 | 0.8 | 0.935 | 0.7485 | 0.485 | NA | NA | NA | 0.96 | 1/2-13 UNC | 3/4 | 0.75 | 49/64 | 0.7656 | 25/32 | 0.781 | 51/64 | 0.797 |
| AT502C9T-813 | AT502C9T-813 | 1/2-13 UNC | 813 | 0.8 | 0.935 | 0.7485 | 0.485 | NA | NA | NA | 0.96 | 1/2-13 UNC | 3/4 | 0.75 | 49/64 | 0.7656 | 25/32 | 0.781 | 51/64 | 0.797 |
| AT502C10-813 | AT502C10-813 | 1/2-13 UNC | 813 | 0.8 | 0.935 | 0.7485 | 0.485 | NA | NA | NA | 0.96 | 1/2-13 UNC | 3/4 | 0.75 | 49/64 | 0.7656 | 25/32 | 0.781 | 51/64 | 0.797 |
