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 allows you to buy a patent­ed cylin­der plat­form through a glob­al, autho­rized deal­er net­work. 

Keys from High Security Locking solutions

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

ASSA ABLOY, the glob­al leader in access solu­tions, whol­ly owns Mul-T-Lock. 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

  • Over 40 years of expe­ri­ence, cut­ting-edge tech­nol­o­gy and 100’s patents on lock/key tech­nol­o­gy to keep you safe and free from unau­tho­rized dupli­ca­tion.
  • They patent­ed Key con­trol sys­tems. With strict fac­to­ry key con­trol reg­u­la­tions, Mul-T-Lock­’s Key Con­trol Sys­tems are engi­neered to pre­vent unau­tho­rized key dupli­ca­tion. Dupli­ca­tion of Mul-T-Lock keys is only pos­si­ble at autho­rized ser­vice cen­tres on Mul-T-Lock key cut­ting machines.
  • Tam­per resis­tance. Mul-T-Lock prod­ucts are designed to with­stand many forced entry attempts, from pick­ing, bump­ing or drilling. Mul-T-Lock­’s unique tele­scop­ic pin tum­bler mech­a­nism will defeat even the most expe­ri­enced lock pick­er. Ten and eight-pin cylin­der designs enhance the lev­el of secu­ri­ty by requir­ing a dual shear line match for the cylin­der to oper­ate. Plus, each cylin­der incor­po­rates hard­ened steel inserts in strate­gic areas to offer a high lev­el of drill resis­tance. Also, advanced pro­tec­tive ele­ments such as mush­room and split plug pins, inter­lock­ing tele­scop­ic pins and strict key con­trol pro­ce­dures elim­i­nate the threat of bump­ing.
  • Sin­gle key mul­ti­ple-use solu­tions. While Mul-T-Lock pro­duces many types of keys and locks for com­plex sit­u­a­tions, they also offer one key solu­tions to make your life eas­i­er. With one Mas­ter Key, open your fil­ing cab­i­net, serv­er room, tool shed and office door with one Key on your ring.
  • Ver­sa­til­i­ty. No job is too large or small for Mul-T-Lock. The vast prod­uct line extends to both for­eign and domes­tic locks, pad­locks, and cylin­ders. High-secu­ri­ty lock­ing solu­tions for Cana­di­an, Amer­i­can, Scan­di­na­vian, Japan­ese, and French lock­sets, which 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

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

State of the art patent­ed tech­nol­o­gy
MTL™800 inte­grates 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 replac­ing the sol­id pin of the cur­rent MT5®+ design, and a new load­ing sys­tem. Many exist­ing high-secu­ri­ty fea­tures inte­grat­ed into the cur­rent MT5®+ are already lead­ing the lock­ing solu­tion indus­try, so they were not mod­i­fied for the new prod­uct release.

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

MTL600 superior protection locking solution

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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 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 six 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 lets you know that only per­sons autho­rized by the own­er can order extra 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 pro­tec­tion, 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 of the Her­cu­lar dead­bolt. Offer­ing many ben­e­fits like the Her­cu­lar, the Cronus is bump, pick, and drill resis­tant, allow­ing for extra key secu­ri­ty. In con­trast, 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