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- Designed for high load applications. Countersunk feature allow fastener to be installed flush with sheet surface.
- Both UNC and UNF threads available in No. 10 and larger thread sizes. Check for availability of other grip ranges and designs.
Unit of Measure
Thread Size |
N/A 1/2-13 |
Grip Range |
N/A .426 - .526 in |
Identification Mark |
N/A 3 Rad. |
B Ref. |
N/A
.906 in
![]() Loading zoom |
C Max. |
N/A .124 in |
øD + .000 - .004 |
N/A .625 in |
E Max. |
N/A .733 in |
F + .005 -.000 |
N/A .120 in |
L ± .0151 | N/A 1.75 in |
K Ref. |
N/A .635 in |
P - Keyway Width + .003 -.000 |
N/A .128 in |
H - Keyway Height |
N/A .110 - .115 in |
Install Drill Size Ref. |
N/A 5/8 |
Install Hole Size Min. |
N/A .625 in |
Install Hole Size Max. |
N/A .635 in |
Pull Up Factor |
N/A .185 in |
Weight per 1000 |
N/A 76.3 lb |
Fastening |
N/A Uninstalled |
Thread Specification |
N/A 3B per ASME B1.1 |
Standard Material |
N/A Low Carbon Steel |
Standard Finish |
N/A Cadmium Plate - .0003” minimum thickness per SAE AMS-QQ-P-416 Class 2, Type II |
CAD Supplier |
N/A PennEngineering® (Atlas®) |
Inventory |
- 1 The “L” dimension is the height of the installed stud at max grip. The height of the stud will increase if it is installed into thinner material. To calculate “actual L” use this formula: max grip - actual grip + L = “actual L”