Part Number: 31CLSLN2Z
Diameter/Pitch: 5/16"-18
Grade: Case Hard Steel
Finish: Zinc Clear
Coarse / Fine Threads: Coarse
Wrench Size: 1/2"
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5/16"-18 Case Hard Steel Serrated Hex Large Flange Lock Nuts Zinc
Part Number: 31CLSLN2Z
Diameter/Pitch: 5/16"-18
Grade: Case Hard Steel
Finish: Zinc Clear
Coarse / Fine Threads: Coarse
Wrench Size: 1/2"
Click Here for Tech Drawing

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| Diameter Pitch | 5/16"-18 |
| Finish | Zinc Clear |
| Thread Class | 2B |
| Width Across Flats | 0.500" (1/2") |
| Major Diameter | 0.3125" |
| Head Type | Hex Flange |
| Inch Metric | Inch |
| Grade | Case Hard Steel |
| Material | Low carbon steel |
| Threads Per Inch | 18 TPI |
| Width Across Corners | 0.577" max |
| Tensile Stress Area | 0.0524 sq in |
| Height | 0.266" nom |
| Grade Material | Case Hard Steel |
| Coarse Fine Threads | Coarse |
| Wrench Size | 1/2" |
| Head Height | 17/64" |
| Thread Size | 5/16"-18 |
| Nominal Size | 5/16" |
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