Metallics CST100 Staples 1-1/4 X 9/16 Nmc Cbl Stpl (Box 100)

The CST100 is a 1-1/4 by 9/16 inch non-insulated steel cable staple, so the 9/16 inch crown is what sets the cable capacity. That width suits common NM (Romex) runs where the cable sits flat under the crown, and the 1-1/4 inch legs drive into wood framing deep enough to hold the run without crushing it. If you are stapling a larger multi-conductor or a stacked pair, step up to a wider crown.

Bare metal. It is a non-insulated steel staple, with no plastic saddle or insulating strap across the crown. For NM cable where an inspector or spec calls for an insulated staple to protect the jacket, you want an insulated or plastic-saddle type instead. Non-insulated steel staples are the standard choice for general wood-frame securing where the staple is driven snug, not tight.

Yes. The CST100 staple has a United States country of origin and is flagged both Buy American compliant and ARRA compliant, which is what a government, school district, or federally funded project needs on the submittal for fasteners.

They ship 100 to a box, and 100 count is also the order minimum, so one box is the smallest quantity you can buy. Metallics lists other sizes and quantities by request if a larger job needs a bulk count or a different crown width.

Yes. At 1-1/4 inch, the legs bite well into dimensional lumber framing and furring without punching through a 2x member. They are intended for wood substrates only. On steel stud, concrete, or masonry a driven staple will not hold, and you would move to a cable clip or strap with an anchor.

The CST100 is a hand-driven steel staple with two legs, set with a hammer. It is not a collated strip for a pneumatic or manual staple gun. For rough-in where you are running cable along studs and joists, that is the normal method: drive until the crown just contacts the cable jacket, no further.

A box of 100 comes in at 0.73 lbs, in a carton measuring 2.5 by 2.75 by 2.5 inches. Light enough that electricians commonly order several boxes at once for a multi-unit rough-in without worrying about freight weight.