Belt Thickness (in.)5/16-9/16Belt Thickness (mm)8-14Fastener MaterialSteelMechanical Fastener Rating (kN/m)65Mechanical Fastener Rating (PIW)375Minimum Pulley Diameter (in.)18Minimum Pulley Diameter (mm)460Package Configuration100 fastener sets per bucket
| Default Surface Finish | Bright Finish |
| Number of Flutes | 2 |
| PD Tolerance | H-1 |
| Series Designation | NF |
| Style | BOTT |
| Tap Size | 3-56 |