Support

We’re Here to Help

Whether you’re choosing the right lock, troubleshooting an installation, or need help with your order — the Aisecure support team has you covered.

Before You Contact Us

Check out our quick guides below — most questions are answered here:

Find My Lock — Not sure which model fits your door? Start here.
Backset Measurement Guide — Measure from the center of your cylinder hole to the door edge. Common sizes: 31/32" (25mm), 1-1/8" (29mm), 1-1/2" (38mm).
Installation — All EASILOK locks are drill-free, drop-in replacements. No special tools required. Installation takes under 15 minutes with a standard screwdriver.

Frequently Asked Questions

Do EASILOK locks require batteries?

No. All EASILOK locks are 100% mechanical — no batteries, no wiring, no apps. They work in any weather condition, including rain and snow.

Will this lock fit my door without drilling?

Yes. All EASILOK models use your door’s existing factory holes. No new drilling required.

What is the difference between SK4510 and SK4510S?

Both are keyless deadlatches. The SK4510S adds an SFIC (Small Format Interchangeable Core) housing for a physical key backup or master-key system integration. The SK4510 is pure keyless with no keyhole.

Does the SM1850 or SK4510 support the Hold-Back (stay-open) function?

The SM1850 supports the hold-back function. The SK4510 and SK4510S do not support stay-open mode. If you need both keyless entry and stay-open passage, choose the SM1850 Series.

What is my backset and how do I measure it?

The backset is the distance from the center of the cylinder hole to the edge of the door. Measure carefully and choose from 31/32", 1-1/8", or 1-1/2" when ordering.