Five Sixteenth Inch Internal Tooth Lock Washer In Medium Carbon Steel With Thermal Black Oxide Finish Pack Of One Thousand For Heavy Duty Fastener Applications In Automotive Machinery Equipment And Sheet Metal Projects Durable And Corrosion Resistant
✔️ 5/16 size, carbon steel, black oxide finish, ID 0.320-0.332, 1000 pcs
These internal-tooth lock washers are designed to resist loosening in high-vibration assemblies and are ideal for automotive, machinery, equipment, and sheet metal projects. This pack includes 1000 washers, each made from medium carbon steel and finished with a durable thermal black oxide for corrosion resistance.
| Dimension | Inches | Millimeters |
|---|---|---|
| Inside Diameter (ID) | 0.320-0.332 in | 8.13-8.43 mm |
| Outside Diameter (OD) | 0.594-0.610 in | 15.09-15.49 mm |
| Thickness | 0.028-0.034 in | 0.71-0.87 mm |
✅ Size: 5/16 inch nominal; ID 0.320-0.332 in; OD 0.594-0.610 in; thickness 0.028-0.034 in.
✅ Material: medium carbon steel with thermal black oxide finish
✅ Type: internal tooth lock washer for secure load distribution
✅ Pack: 1000 washers per pack for heavy-duty use
✅ Suitable for automotive, machinery, and sheet metal projects
💡 What is a lock washer used for in heavy-duty mechanical assemblies? Lock washers help keep fasteners tight by resisting vibration and maintaining preload. - Provides preload retention under dynamic loads - Distributes load to protect threads and mating surfaces - Handy for automotive, machinery, and sheet metal projects