


Mul-T-Lock Hercular Deadbolt, MTL 400 cylinder with thum bturn
Product Description:
The Mul-T-Lock Hercular® Deadbolt with MTL™400 cylinder is for those who want their door hardware to work as hard as they do. Engineered to meet ANSI Grade 1 standards—the highest possible for deadbolts—this lock is a serious upgrade for any exterior door where security is non-negotiable.
We recommend this deadbolt to clients who want a visible, physical layer of protection they can rely on. Whether you're fortifying a home, apartment, or storefront, the Hercular resists drilling, picking, prying, and forced entry attempts better than nearly anything else on the market.
Inside, the MTL™400 cylinder uses Mul-T-Lock’s patented telescopic pin system for superior resistance to tampering, while the interior thumb turn makes locking up fast and intuitive. The included key control card restricts unauthorized duplication, giving you control over who has access—and who doesn’t.
Adjustable backset for 2-3/8” and 2-3/4”
Ideal for:
Exterior residential doors
Apartment and townhouse entryways
Storefronts and commercial spaces with high foot traffic
Anyone who’s ever had to rekey after a break-in or lost key
Includes:
1 Mul-T-Lock Hercular® Grade 1 deadbolt
1 MTL™400 high-security cylinder with thumb turn
2+ restricted keys
Official Mul-T-Lock key control card
Optional professional installation available in NYC
If you’re upgrading from a standard lock, you’ll feel the difference. And if you’re not sure whether this is the right fit, we’re always here to talk through your options. Security should feel personal—and it should always be built to last.
Product Description:
The Mul-T-Lock Hercular® Deadbolt with MTL™400 cylinder is for those who want their door hardware to work as hard as they do. Engineered to meet ANSI Grade 1 standards—the highest possible for deadbolts—this lock is a serious upgrade for any exterior door where security is non-negotiable.
We recommend this deadbolt to clients who want a visible, physical layer of protection they can rely on. Whether you're fortifying a home, apartment, or storefront, the Hercular resists drilling, picking, prying, and forced entry attempts better than nearly anything else on the market.
Inside, the MTL™400 cylinder uses Mul-T-Lock’s patented telescopic pin system for superior resistance to tampering, while the interior thumb turn makes locking up fast and intuitive. The included key control card restricts unauthorized duplication, giving you control over who has access—and who doesn’t.
Adjustable backset for 2-3/8” and 2-3/4”
Ideal for:
Exterior residential doors
Apartment and townhouse entryways
Storefronts and commercial spaces with high foot traffic
Anyone who’s ever had to rekey after a break-in or lost key
Includes:
1 Mul-T-Lock Hercular® Grade 1 deadbolt
1 MTL™400 high-security cylinder with thumb turn
2+ restricted keys
Official Mul-T-Lock key control card
Optional professional installation available in NYC
If you’re upgrading from a standard lock, you’ll feel the difference. And if you’re not sure whether this is the right fit, we’re always here to talk through your options. Security should feel personal—and it should always be built to last.
Product Description:
The Mul-T-Lock Hercular® Deadbolt with MTL™400 cylinder is for those who want their door hardware to work as hard as they do. Engineered to meet ANSI Grade 1 standards—the highest possible for deadbolts—this lock is a serious upgrade for any exterior door where security is non-negotiable.
We recommend this deadbolt to clients who want a visible, physical layer of protection they can rely on. Whether you're fortifying a home, apartment, or storefront, the Hercular resists drilling, picking, prying, and forced entry attempts better than nearly anything else on the market.
Inside, the MTL™400 cylinder uses Mul-T-Lock’s patented telescopic pin system for superior resistance to tampering, while the interior thumb turn makes locking up fast and intuitive. The included key control card restricts unauthorized duplication, giving you control over who has access—and who doesn’t.
Adjustable backset for 2-3/8” and 2-3/4”
Ideal for:
Exterior residential doors
Apartment and townhouse entryways
Storefronts and commercial spaces with high foot traffic
Anyone who’s ever had to rekey after a break-in or lost key
Includes:
1 Mul-T-Lock Hercular® Grade 1 deadbolt
1 MTL™400 high-security cylinder with thumb turn
2+ restricted keys
Official Mul-T-Lock key control card
Optional professional installation available in NYC
If you’re upgrading from a standard lock, you’ll feel the difference. And if you’re not sure whether this is the right fit, we’re always here to talk through your options. Security should feel personal—and it should always be built to last.