Rockwood 557

Lever Extension Flush Bolt


Material: Cast Brass

*#557 flush bolt rods cannot be extended

Fastener: 7 ea. #8 x 3/4 FH Combo Screws; 4 ea. 8-32 x 1/2 FH MS; 4 ea. #8 Counter Sunk Washer

Features: 3/4" bolt throw, 3/4" backset; door strength maintained by corner reinforcing plate, For Fire Rated Plastic and Wood Covered Doors measuring up to 4'w x 10'h rated up to and including 1-1/2 hours

Options: Use #570 Dust Proof Strike to prevent dirt blocking bottom strike; Torx Fasteners

Part Number

Face Plate Size

Strike Size


ANSI A156.16

557 1" x 6-3/4” 15/16” x 2-1/4” 1.7 lbs./2 L04261




Bright Brass, Clear Coated US3 605 605
Satin Brass, Clear Coated US4 606 606
Satin Bronze, Clear Coated US10 612 612
Dark Oxidized Satin Bronze, Oil Rubbed US10B 613 613
Dark Oxidized Satin Bronze, Equivalent US10BE 613E 613e
Black Suede Powder Coat BSP -
White Suede Powder Coat WSP -
Bright Chrome Plated US26 625 625
Satin Chrome Plated US26D 626 626

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