Weld these nuts to uncoated steel surfaces.

A smooth base provides more contact with the mating surface than weld nuts with projections.

Use these metric nuts in channels and tight spaces where round-base weld nuts won't fit.

A smooth base on these metric nuts provides more contact with the mating surface than weld nuts with projections

Weld these metric nuts to flat and uneven uncoated steel surfaces for a strong permanent hold.

Threads float inside the retainer of these metric nuts so you can install a bolt at a slight angle to align with off center parts.