Featuring serrations and 7/16” across flats, NBS’ hex washer head self drilling screw (tek 3) are available in 5/16” diameter. All self drilling screws are sourced only from ISO-9001 accredited manufacturers and come with zinc finish.
| NBS Corp. | |
|---|---|
| Product Category | Screws |
| Product Number | SD3HWS025010Z |
| Product Name | 5/16-12 x 1" Hex Washer Head Self Drilling Screw, (Tek 3), Serrated, 7/16" Across Flats, Zinc |
| Head Type | Hexagon Head; Washer Head |
| Material | Steel |
| Finish | Zinc Plated |
