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LN Self-Locking Fasteners from the PEM Fasteners catalogue, page 113.
| Property | Value |
|---|---|
| Thread Size | .313-18 (5/16-18) |
| Type | S |
| Thread Code | RT0518 |
| Shank Code | 1 |
| A (Shank) Max. | .054 in |
| Rec. Min. Sheet Thickness | .056 in |
| Hole Size In Sheet +.003 −.000 | .413 in |
| C Max. | .412 in |
| E ±.010 | .500 in |
| T ±.010 | .230 in |
| Min. Dist Hole ℄ To Edge | .38 in |