Share on (60676016153):

| Product Name | Custom Pan Head Phillips Sems Screws with Flat Washer and Spring Split Lock Washer |
| Material | Stainless Steel 304,etc. |
| Finish | Plain,Passivated,etc. |
| Thread | Coarse Thread |
| Standard | GB 9074 |
| Size | M3-M6 |
| Length | 4mm-80mm |
| Nylon Patch Services | Available on request |
The flat washer distributes holding pressure and protects delicate surfaces from damage while the split lock washer adds tension to prevent loosening from small amounts of vibration. Also known as Sems screws, the washers rotate freely but are permanently attached. 




















New products from manufacturers at wholesale prices