Roofing Screw:Hex washer head, hex flange washer head.
| Material | Carbon Steel, Stainless Steel. | 
|---|---|
| Diameter | #10 ~ #14 ( M4.8 ~ M6.3) | 
| Length | 3/4 ~ 3" (19mm ~ 75mm) | 
| Head Type | Ind. Hex. Washer Head. | 
| Point | #1, #2, #3, #4, #5 | 
| Thread Type | BK, CK | 
| Finish | Plain, Zinc Plated, Mechanical Zinc, Ruspert Coating, Painting color per customers’ request. |