Keep Your Assembly Locked Tight With These Heavy Duty Helical Spring Lock Washers Crafted From Solid Steel Featuring A Vibrant Yellow Zinc Plating In Size Seven Eighths Inch Built With A Medium Split Configuration That Keeps Loose Fasteners Dead Firm

Reliable Helical Lock Washers For Secure Assembly
✔️ 7/8 inch steel yellow zinc medium split helical washer

These helical spring lock washers act as reliable hardware anchors that keep bolts and nuts from backing out during vibration or heavy loads. You will find them handy on automotive frames, industrial machinery mounts, and structural steel builds where steady tension matters most. The medium split design provides consistent axial force to hold everything in place without needing constant retightening.

✅ Nominal outside diameter measures exactly 7/8 inch for standard bolts
✅ Solid steel core hits Rockwell C38-C46 hardness for serious torque resistance
✅ Medium split geometry twists flat under compression to prevent fastener shift
✅ Bright yellow zinc finish blocks corrosion and follows ASME B18.21.1 standards
✅ Fits cleanly inside housing bores and square nut slots for smooth assembly

💡 Why choose helical spring lock washers for high vibration bolt applications?
The curved split shape creates continuous upward tension that fights rotational loosening.
- Metal teeth dig into the mating surface to lock bolts tight during engine cycling
- Spring action compensates for thermal expansion and contract cycles over years
- Handles heavy dynamic loads better than flat or toothed lock washer alternatives

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