Bolts - name of

[Steve]

What are those bolts called that are generally used for fixing things to, say, masonry / concrete in blind holes.

They're like a sheath over a bolt. The bolt withdraws up the sheath as the nut is tightened, spreading the sheath in a similar fashion to rawlplugs - kind of like a rawlbolt I suppose, but with a nut pulling the bolt outwards to tighten the fixing.

Hope that makes sense, I'm sure I'm missing vocabulary!

S

[Gareth]

Stud type shield anchors?

like this?

this?

[Ron Lowe]

Try 'shield ancho'r or 'sleeve anchor'.

[Chris Bartram]

They're called rawbolts, as you said, or at least, the branded ones are.

Googling rawbolt suggests 'shield anchor'

[Steve]

Awesome, thanks guys

I did do a quick Google for rawlbolt, but only saw actual bolt versions rather than-nut-onto-threaded-shaft versions. A second look did show me what I'm after.

Thanks again.

S

[Jon Fairbairn]

Through-bolt?