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Boring Tools

Interactive calculators and matchers for everyday fastener tasks.

Find Matching Nut for Your Bolt

Select Bolt Size
Matching Hardware
M35.5mm
Nut Size:5.5mm
Wrench Size:5.5mm
Lock Nut:M3 Nyloc

Pro Tips

Pilot Holes in Wood

For softwoods, you can often skip pilot holes for small screws. Always pilot in hardwoods to prevent splitting.

Thread Engagement

For maximum strength, engage at least 1.5x the bolt diameter in threaded material. In aluminum, aim for 2x.