MUL-T-LOCK® High Security Locks

Mul-T-Lock Authorized Dealer

High Security You Can Trust

With Mul-T-Lock, you know you are in good hands. Mul-T-Lock is an inter­na­tion­al brand that makes it pos­si­ble for you to buy a patent­ed cylin­der plat­form through a glob­al, autho­rized deal­er net­work.

Keys from High Security Locking solutions

Mul-T-Lock® High-Secu­ri­ty Locks has cho­sen PROTECTION PLUS® as a  trust­ed part­ner to pro­vide high-secu­ri­ty door lock ser­vices for our res­i­den­tial clients. Mul-T-Lock has been a world­wide leader in devel­op­ing, man­u­fac­tur­ing and mar­ket­ing High-Secu­ri­ty lock­ing prod­ucts and secu­ri­ty solu­tions for the res­i­den­tial mar­ket for over four decades.

Mul-T-Lock is whol­ly owned by ASSA ABLOY, the glob­al leader in access solu­tions. From secu­ri­ty locks to secu­ri­ty doors, entrance automa­tion and access con­trol sys­tems, ASSA ABLOY has an annu­al turnover of $8.7 bil­lion and employs approx­i­mate­ly 49,000 peo­ple world­wide.

Why should you as a consumer choose PROTECTION PLUS and Mul-T-Lock Toronto

  • Mul-T-Lock estab­lished over 45 years ago. State of the art tech­nol­o­gy and 100’s of patents on key tech­nol­o­gy and lock­ing sys­tems keep you safe by not allow­ing unau­tho­rized dupli­ca­tion of your key­way.
  • Our Key con­trols sys­tems are Patent­ed. Our strict, Mul-T-Lock’s Key Con­trol Sys­tems and reg­u­la­tions are specif­i­cal­ly designed to pre­vent unau­tho­rized key dupli­ca­tion. It is only pos­si­ble at Only autho­rized MUL-T-Lock deal­ers can dupli­cate Mul-T-Lock keys for their cus­tomers on their ded­i­cat­ed Mul-T-Lock key­way key cut­ting machine.
  • Tam­per resis­tance. Mul-T-Lock prod­ucts are designed to with­stand forced entry attempts, pick­ing, bump­ing or dif­fer­ent types of drilling. Mul-T-Lock’s unique tele­scop­ic pin tum­bler mech­a­nism will defeat even the most skilled lock­pick­er. Each cylin­der incor­po­rates hard­ened steel inserts in strate­gic areas to offer a high lev­el of drill resis­tance. Plus, Ten and eight-pin cylin­der designs enhance the lev­el of secu­ri­ty by requir­ing a dual shear line match for the cylin­der to oper­ate. Addi­tion­al­ly, advanced pro­tec­tive ele­ments such as split and mush­room plug pins, inter­lock­ing tele­scop­ic pins and strict key con­trol pro­ce­dures essen­tial­ly remove the threat of bump­ing.
  • Mul­ti­ple use-sin­gle key solu­tions. Mul-T-Lock man­u­fac­tures many types of keys and locks for dif­fi­cult sit­u­a­tions. With your one Mas­ter Key solu­tions, you can open your fil­ing cab­i­net, back­yard shed, com­put­er room and your office with one key on your ring.
  • Ver­sa­til­i­ty. No job is too small or too large for Mul-T-Lock. The exten­sive prod­uct line includes locks, pad­locks, and cylin­ders – both for­eign and domes­tic. High secu­ri­ty lock­ing solu­tions for the Cana­di­an mar­ket can be incor­po­rat­ed into a sin­gle key­ing sys­tem, are just part of Mul-T-Lock’s impres­sive prod­uct port­fo­lio.


MTL™800 Mul-T-Lock’s

Mul-T-Lock’s pre­mi­um cylin­der plat­form is designed for supreme pro­tec­tion, flex­i­bil­i­ty, and con­ve­nience — with your needs in mind. MTL™800 meets high inter­na­tion­al stan­dards to offer enhanced resis­tance to pick­ing, drilling, bump­ing and oth­er forms of lock manip­u­la­tion, so your home remains secure, always.

State of the art patent­ed tech­nol­o­gy
MTL™800 inte­grate a com­bi­na­tion of pro­tec­tive ele­ments to cre­ate a triple lock­ing mech­a­nism.

MTL™800 con­tains a new dou­ble Alpha spring, a new plug pin made of two sep­a­rate parts that are replac­ing the sol­id pin of the cur­rent MT5®+ design, and a new load­ing sys­tem. Many of the exist­ing high-secu­ri­ty fea­tures inte­grat­ed into cur­rent MT5®+ are already lead­ing the lock­ing solu­tion indus­try, so they were not mod­i­fied for the pur­pose of the new prod­uct release.

MTL™800 sup­ports large and com­plex mas­ter key sys­tems, advanced key copy require­ments, even with­in the same suite. Its milled pat­tern can be used to cre­ate exclu­sive key­ways, pro­vid­ing home and busi­ness own­ers with the flex­i­bil­i­ty they need to meet their spe­cif­ic needs.

MTL600 superior protection locking solution

The MTL600 supe­ri­or pro­tec­tion lock­ing solu­tion pro­vides you with the high secu­ri­ty you need, and the enhanced key copy con­trol you desire.

The com­bi­na­tion of sev­er­al tech­no­log­i­cal ele­ments cre­ates strong resis­tance against dif­fer­ent forms of lock manip­u­la­tion.

The MTL600 mechan­i­cal plat­form address­es High Secu­ri­ty con­cerns while respond­ing to func­tion­al needs.

Build­ing on four decades of exten­sive expe­ri­ence and the MTL600 key plat­for­m’s proven tech­nol­o­gy and glob­al suc­cess, MTL600 uti­lizes patent tech­nol­o­gy for enhanced High Secu­ri­ty.

Using advanced tech­nol­o­gy, Inter­ac­tive+ com­bines an enhanced vari­a­tion of the tele­scop­ic pin mech­a­nism with a spe­cial patent­ed float­ing ele­ment to meet the high­est secu­ri­ty stan­dards.


With MTL™300, you can enjoy a high-secu­ri­ty patent­ed lock­ing sys­tem devel­oped by a world­wide leader — at an afford­able price.

Based on the com­bi­na­tion of exist­ing field-proven tech­nolo­gies, this patent­ed cylin­der plat­form offers peace of mind against all forms of cylin­der attacks.

Ide­al for res­i­den­tial and small-to-medi­um busi­ness cus­tomers, MTL™300 is an entry-lev­el lock­ing solu­tion that goes beyond the stan­dard, offer­ing advanced, patent­ed tech­nol­o­gy and pro­tec­tion that com­plies with inter­na­tion­al stan­dards. The plat­form is patent­ed, and a restrict­ed key copy sys­tem enables lock­smiths to access exclu­sive key­ing pro­files using 6 dif­fer­ent spe­cial cut types while guar­an­tee­ing pro­tec­tion against unau­tho­rized key dupli­ca­tion.

MUL-T-LOCK Key Copy Control System

Enhanced Key Copy Control

All Mul-T-Lock mechan­i­cal prod­ucts come with a unique card that should be pre­sent­ed to PROTECTION PLUS along with a piece of pho­to ID when addi­tion­al keys are need­ed. This key con­trol sys­tem gives you piece of mind that only per­sons autho­rized by the own­er can order addi­tion­al keys and keys can only be copied by PROTECTION PLUS.


Hercular – Grade 1

The Her­cu­lar dead­bolt is Mul-T-Lock’s flag­ship dead­bolt lock­ing solu­tion. Its unique design allows for secu­ri­ty in almost every way. Bump, pick, and drill resis­tant cylin­ders allow for extra key secu­ri­ty while its unique steel ball bear­ing bolt mech­a­nism and hard­ened steel inserts give it phys­i­cal strength. The Her­cu­lar dead­bolt will stop at noth­ing to deny unau­tho­rized access via forced entry.

  • ANSI Grade 1 Lock­ing Mech­a­nism and Design
  • UL Fire Rat­ed, Hard­ened Steel Bolt
  • UL437 Drill, Pick, and Bump Resis­tant Cylin­der
  • MTL800 or MTL600 Key Con­trol Sys­tem
  • Stan­dard and dec­o­ra­tive styles avail­able
  • Avail­able in Sin­gle cylin­der, Cap­tive key, and 3‑in‑1 cylin­der con­fig­u­ra­tion
Hercular Deadbolt - Grade 1
Hercular Deadbolt - Grade 1
Cronus Deadbolt - Grade 2

Cronus – Grade 2

The Cronus dead­bolt is the younger sib­ling to the Her­cu­lar dead­bolt. Offer­ing many ben­e­fits like the Her­cu­lar, the Cronus is bump, pick, and drill resis­tant allow­ing for extra key secu­ri­ty while the sol­id brass bolt with a hard­ened steel insert allows for extra phys­i­cal strength. The Cronus dead­bolt is ide­al for res­i­den­tial and light com­mer­cial appli­ca­tions with its ANSI Grade 2 com­mer­cial rat­ing.

  • ANSI Grade 2 Lock­ing Mech­a­nism and Design
  • UL437 Drill, Pick, and Bump Resis­tant Cylin­der
  • MTL600 or MTL300 Key Con­trol Sys­tem
  • Avail­able in Sin­gle cylin­der and 3‑in‑1 cylin­der con­fig­u­ra­tion