Emtek 8557 #1 Sandcast Bronze Single Sided Deadbolt

There is no key on the 8557. It is a single sided deadbolt operated by a thumbturn from the inside only, and it ships with no cylinder and no collar, so the outside face of the door gets nothing. Use it where you never need to unlock from outside: a den, a closet, an interior room, or a decorative back side of an opening that is secured elsewhere. If you need key access from outside, this is the wrong part.

Backset is a required choice at 2-3/8 inch or 2-3/4 inch. Measure from the door edge to the center of the existing 2-1/8 inch bore: residential doors are most often 2-3/8, heavier or wider stile doors commonly 2-3/4. Pick the one that matches the hole already in the door, since the bolt has to line up with the strike prep in the jamb.

No. The 8557 is a residential product, single sided, and described for interior installation and appearance. For a commercial opening look at a Grade 1 or Grade 2 deadbolt instead, such as the Accentra D111 single cylinder Grade 1 (1-3/8 to 1-3/4 inch doors) or the Arrow DBX61 Grade 2. If you want a non-keyed thumbturn deadlock on a commercial door, the Arrow E60 Grade 2 exit deadlock is blank plate outside by thumbturn inside.

Not as it stands. The 8557 has no outside cylinder at all, just an inside thumbturn. If you want key outside and turn inside, choose a single cylinder deadbolt: the Dexter DB1000 single cylinder is Grade 1 for 1-3/8 to 1-7/8 inch doors, and the Bravura 310B Elite traditional round is a Grade 2 cylinder by thumbturn option with a more decorative rosette.

The Emtek 8557 #1 Sandcast Bronze deadbolt is a single sided, non-keyed unit operated by thumbturn from the inside only, with no cylinder or collar supplied. For an opening that has to be keyed from the exterior, the Dexter DB1000 series single cylinder deadbolt is a Grade 1 cylinder x thumbturn unit for doors 1-3/8 inch to 1-7/8 inch thick, and the Hager 3215 is a Grade 2 single cylinder deadbolt with a 1 inch throw for doors 1-3/8 inch to 1-3/4 inch thick.

The Emtek 8557 single sided deadbolt is bored like a standard deadbolt, with a 2-1/8 inch cross bore, a 1 inch edge bore and a 2-3/8 inch or 2-3/4 inch backset. If you want a one-sided deadbolt that uses a half bore instead, the Callan 205S is a Grade 3 one-sided half-bore deadbolt.

The Emtek 8557 sandcast bronze single sided deadbolt is a residential tubular deadbolt. Where a graded unit is specified, the Accentra D111 is a Grade 1 cylinder x thumbturn deadbolt with a 2-3/8 inch backset for doors 1-3/8 inch to 1-3/4 inch thick, the Design Hardware D1 series is a Grade 1 extra heavy duty double cylinder deadbolt for 1-3/4 inch doors, and the Hager 3118 is a Grade 1 classroom deadbolt with a Schlage C keyway and 6-pin cylinder.

The Emtek 8557 is prepped for a Schlage C keyway but is a non-keyed single sided deadbolt with no cylinder or collar included, so keying happens only if a cylinder is added. If you want a deadbolt that arrives keyed on Schlage C, the Hager 3115 Grade 2 cylinder x thumbturn deadbolt and the Hager 3214 double cylinder deadbolt both use the Schlage C keyway, and the Dormakaba D900 small case mortise deadbolt is keyed different with SC keyways.

Several items sit near the Emtek 8557 sandcast bronze deadbolt without replacing it. The Baldwin Reserve 8BR0618001 is a deadbolt spacer and the BEST 8T is a T series tubular deadbolt tube component, both parts rather than complete deadbolts. The Arrow 460 is a mortise lock strike for latchbolt and deadbolt functions. The Codelocks CL200 is a surface mounted deadbolt with key override, and the Codelocks CL2200 is an electronic surface deadbolt, neither of which uses the 2-1/8 inch cross bore and 1 inch edge bore prep the 8557 installs into.

The Emtek 8557 arrives with no cylinder or collar at all, since it is non-keyed. If you want a keyed deadbolt prepped for your own core, the Arrow E61 is a Grade 2 single cylinder deadlock with SFIC prep less core for doors 1-3/8 inch to 1-3/4 inch thick, the Deltana CL200LAIC is a Grade 2 single deadbolt with interchangeable core prep and a 2-3/4 inch backset, and the Delaney LM series is a Grade 1 single cylinder less core deadbolt in dull chrome US26D.

The 8557 needs the full through prep: a 2-1/8 inch cross bore plus a 1 inch edge bore. If you would rather not bore all the way through a finished door, the Callan Model 205S is a one sided half bore deadbolt, Grade 3. The Codelocks CL200 is a surface mounted deadbolt with key override, which avoids cross boring entirely.

The Emtek 8557 sandcast bronze deadbolt covers doors 1-3/8 inch to 2 inch thick, with 1-3/4 inch as the standard. Among comparable deadbolts, the Deltana 7312KA2 double cylinder deadbolt covers the same 1-3/8 inch to 2 inch range, and the Corbin Russwin DL3011 cylindrical deadlock covers 1-3/4 inch to 2-1/4 inch for thicker leaves.

The Emtek 8557 requires the backset to be chosen at order, either 2-3/8 inch or 2-3/4 inch. If you would rather field-adjust, the Brinks Raleigh E2401 round single cylinder deadbolt and the Brinks Mendocino E2402 square single cylinder deadbolt both use a 4-way adjustable backset, and the Cal-Royal ED500 is a Grade 3 single cylinder deadbolt with an adjustable backset for doors 1-3/8 inch to 1-3/4 inch thick.

The Emtek 8557 is a non-electronic mechanical deadbolt turned by hand from the inside. For credential-based control, the Delaney KP400 is a Grade 2 electronic deadbolt with a programmable remote, the Dormakaba Saffire LX-D is an RFID electronic deadbolt with BLE and electronic lock override, and the Dormakaba Nova-D is an RFID multihousing smart electronic deadbolt.

The Emtek 8557 spec calls out Schlage C keyway. That matters if you are keying an opening alike across the building, since the surrounding Emtek keyed hardware and common commercial deadbolts like the Hager 3115 also run Schlage C. The 8557 itself arrives with no cylinder.

The 8557 is a sandcast bronze product, with bronze given as both the material and the substrate on the spec, and the description lists brass in the lock material. The visible trim is cast, not stamped or plated over zinc, which is why the finish tones vary slightly piece to piece across the three bronze options.

The Emtek 8557 belongs to the Sandcast Bronze collection with a rustic character, offered in Flat Black Bronze, Medium Bronze and Tumbled White Bronze. For contemporary trim instead, the Bravura 310RC Elite is a Grade 2 contemporary round deadbolt and the 310SC Elite is a Grade 2 contemporary square deadbolt, while the Baldwin Reserve contemporary round and contemporary square deadbolts are double cylinder units.