Part Number: 31CNNECP
Diameter/Pitch: 5/16"-18
Grade: Grade 8
Finish: Phosphate & Oil
Coarse / Fine Threads: Coarse
Wrench Size: 1/2"
Click Here for Tech Drawing

5/16"-18 Grade 8 Hex Nylon Insert Lock Nuts Phos & Oil
Part Number: 31CNNECP
Diameter/Pitch: 5/16"-18
Grade: Grade 8
Finish: Phosphate & Oil
Coarse / Fine Threads: Coarse
Wrench Size: 1/2"
Click Here for Tech Drawing

B&N Pro eligible item. Save 10% when you join Pro. Learn more.
| Diameter Pitch | 5/16"-18 |
| Finish | Phosphate & Oil |
| Width Across Flats | 0.500" (1/2") |
| Tensile Stress Area | 0.0524 sq in |
| Inch Metric | Inch |
| Grade | Grade 8 |
| Thread Class | 2B |
| Width Across Corners | 0.577" max |
| Lock Type | Nylon Insert Lock Nuts |
| Max Temperature | 250°F (nylon insert limit) |
| Grade Material | Grade 8 |
| Threads Per Inch | 18 TPI |
| Major Diameter | 0.312" |
| Locking Type | Nylon Insert (Prevailing Torque) |
Related Items
Everything you need for this fastener — pick your pack sizes and add them all at once.