Description

Rockwood 491 Automatic Door Holder with Stop

The Rockwood 491 Automatic Door Holder with Stop is designed for applications that require frequent and reliable door hold-open functionality. Its low-clearance design makes it ideal for installations where there is 1/2″ or less space between the door and the floor, ensuring smooth operation without interference.

Constructed from durable cast brass, this automatic door holder features a precision screw hole layout that allows accurate alignment and secure, permanent attachment. Built for long-term performance, it provides dependable door control in commercial and high-use environments.

Features:

• Designed for frequent door hold-open applications
• Suitable for minimal floor clearance installations (1/2″ or less)
• Precision screw hole design for accurate alignment
• Secure, permanent mounting for dependable performance

Specifications:

• Base Material: Cast brass
• Holder Base Height: 3-3/8″
• Holder Base Width: 3″
• Holder Projection: 2-1/8″
• Strike Base Height: 2″
• Strike Base Width: 4″
• Strike Projection: 1-1/4″
• Weight: 1.5 lbs

Fasteners by Part Number:

491R

• Strike: 3 ea. 12-24 × 1″ FH machine screws, 3 anchors
• Body: 4 ea. #10 × 1-1/4″ FH wood screws

491S

• Strike: 3 ea. 12-24 × 1″ FH machine screws, 3 anchors
• Body: 4 ea. 10-24 × 1″ FH machine screws; 4 ea. 10-24 × 1-3/8″ sex bolts

491-RKW

• Strike: 3 ea. #12 × 1-1/4″ FH wood screws, 3 plastic anchors
• Body: 4 ea. #10 × 1-1/4″ FH wood screws