Design Hardware Dust Proof Strike

A dust proof strike is the floor strike that catches the bottom rod or bottom bolt of a flush bolt or vertical rod device. It sets into the floor under the door, and the spring-loaded plunger keeps dirt and grit out of the bolt hole so the rod still drops in months after install. The Design Hardware strike has a 1-3/8 by 2-7/8 inch face plate and a brass base.

Yes. The Design Hardware strike is height adjustable, and it ships with a spanner wrench and an adjustable nut to do it. That matters when a floor finish goes in after the strike, or when a tenant lays new tile and the plunger ends up sitting proud or too deep for the bolt to seat.

The Design Hardware face plate measures 1-3/8 by 2-7/8 inches. Dust proof strikes are close to a standard footprint across brands, so on a like-for-like swap it usually drops onto the existing recess, but measure the old plate first. If your existing plate is larger, the new one will leave the edges of the old mortise showing.

For Detex 50 Series surface vertical rod exit devices, the Detex 96B strike kit is the bottom dust proof strike matched to that device. The Design Hardware strike is a general adjustable dust proof strike, so use it for flush bolts and vertical rod bottom bolts where no device-specific kit is called out on the door schedule.

Only where the opening calls for it. The Detex 96B strike kit is a bottom dust proof strike built for Detex 50 Series surface vertical rod exit devices and belongs to the Detex 90 Strike Series, so it is matched to that device rather than being a general purpose floor strike. The Design Hardware dust proof strike is a standalone adjustable brass strike with a 1 3/8 inch by 2 7/8 inch face plate, which is what you want for flush bolts and rods that are not on a Detex 50 Series device. If the door already carries a Detex 50 Series surface vertical rod device, the 96B is the device specific answer.

The Trimco 3911 Series adjustable dust proof strike is the closest straight equivalent. Both are adjustable dust proof strikes, so either one accepts the bottom rod of a flush bolt or vertical rod device and lets you tune the strike height after the floor covering goes down. The Design Hardware strike is brass with a 1 3/8 inch by 2 7/8 inch face plate and a removable face plate, and it ships with a spanner wrench and adjustable nut, so the height adjustment can be made at the opening without additional tools.

The adjusting tools come with it: a spanner wrench and an adjustable nut are included accessories. What is not included is the hole in the floor, so plan for the drilled recess and, on a concrete slab, whatever anchor your installer uses for the face plate screws.

Yes, the face plate on the Design Hardware strike is removable. Handy for a property manager cleaning out a plunger packed with grit, or for refinishing work where the plate comes off and goes back on rather than being replaced.

The Design Hardware dust proof strike is sold in 613 dark bronze, 626 satin chrome and 606 satin brass, so one part number can follow the finish already running on the rest of the door hardware in a mixed finish building. It is brass based with a removable face plate and adjustable height, and the spanner wrench and adjustable nut come with it, so a maintenance crew can set each one to the floor it lands on. Where an opening uses a Detex 50 Series surface vertical rod exit device, that door takes the Detex 96B bottom dust proof strike instead, since that kit is built to the 50 Series device.

Both are adjustable dust proof strikes and both drop into a floor to receive a bottom rod, so the choice usually comes down to matching what is already specified on the drawing. The Trimco unit is the 3911 Series. The Design Hardware strike is brass with a 1 3/8 inch by 2 7/8 inch face plate that is removable, height adjustable, and supplied with a spanner wrench and adjustable nut, and it is offered in 613 dark bronze, 626 satin chrome and 606 satin brass. If the specification names a face plate size, check it against the 1 3/8 by 2 7/8 dimension before ordering either one.

Brass is the base material here, which holds up better than plain steel where mop water and floor chemicals pool at the threshold. That is the main reason a brass strike gets specified in restrooms, kitchens, and entry vestibules rather than the cheapest option on the shelf.

One part, three finishes, so a facility running satin chrome on some openings and dark bronze on others can stock the same strike and just order the finish per door. 613, 626, and 606 are the choices, and the plate is removable if a finish needs to be swapped later without disturbing the body in the floor.