M4-0.7 X 20 W9 SEMS Machine Screw / Phillips / Pan Hd / Double Washer (Flat / Split) / Steel / Zinc
A cross-recessed, pan head machine screw with two free-spinning, captive washers. Directly below the pan head is a helical split lockwasher; beneath the split lockwasher is a round flat washer. The diameter and height of the pan head are between 5% and 20% smaller than a standard pan head.
This double washer sems screw is typically a more economical alternative to a patented conical washer sems screw. They are commonly used in the electronics industry.
| Fastener SuperStore, Inc. | |
|---|---|
| Product Category | Screws |
| Product Number | 370040 |
| Product Name | SEMS Screw |
| Screw Type | SEMS Screws |
| Head Type | Pan Head |
| Standard Drives | Philips / Frearson |
| Material | Steel |
