However screw threads are protected from corrosion or galvanic action because they are completely enclosed in plastic.
Expansion nuts for sheet metal.
Sheet metal screw expansion anchors for use with sheet metal screws these expansion anchors allow you to secure medium to heavy loads in dead variable or vibratory conditions in all types of masonry and natural stone.
They snap easily into square or round holes and are self retained by spring legs.
Insertion versus retention ratio is not as high as metal expansion nuts.
Product not intended for structurally loaded joints.
These fasteners are ideal for applications where a thin sheet requires load bearing threads but still must remain smooth with no protrusions on either surface.
Special locking tabs are provided where permanent fastener retention is desired as the screw is driven it expands the spring legs locking them over the panel thickness and at the same time providing a double locking action on the screw.
Also known as rod anchors they re often used with threaded rod to hang pipe and wiring.
Plastic expansion nuts are rugged nylon fasteners for applications where metal to metal contact is not desired.
Choose from our selection of expansion nuts including insulating rivet nuts screw to install rivet nuts and more.
Expansion type speed nut fasteners provide fast vibration resistant attachments in blind or center panel locations where only one side is accessible.
Nuts self retaining threaded plastic expansion nuts nuts self retaining threaded single thread j type u nut items 1 30 of 80.
Not affected by chemicals or moisture.
Install like a stud anchor just thread the anchor a nut and a washer onto the end of a threaded rod drive into a hole and turn the nut to expand the base.
An expansion bolt or screw is a multi component fastener that includes a bolt anchor and an expansion nut which can be tightened and loosened for reuse.
4 5 out of 5 stars 46.
This also eliminates the danger of wire chafing or scratching on sharp screw cutting edges.
Pemsert self clinching flush nuts are designed to be completely flush in sheets as thin as 060 1 5mm.
For all sheet metal fastening such as fastening low voltage wire to metal ductwork or signs to metal buildings.
Metal roof applications such as mbci metal roof and wall systems.
In stock and ready to ship.
Available in steel for strength or stainless steel for both strength and corrosion resistance expansion bolts may include a coating or finish for additional protection against environmental or chemical degradation.
Lead anchors provide quick installation of lightweight fixtures in masonry and concrete.