Best 8T37S-STK Interchangeable Core Classroom Deadbolt

Usually Ships: 20-30 Business Days
  • Heavy Duty, ANSI/BHMA Grade-1
  • Single cylinder classroom function
  • Core not included (sold separately)

Available Options:


Best 8T37S-STK T Series Tubular Deadbolt, 2-3/4″ Backset, 7-Pin Housing; Accepts all BEST Cores, Classroom Function

The 8T is often paired with a cylindrical lock in commercial office spaces, residential applications and other spaces where there is a greater need for security—and, more specifically, a deadbolt that is more resistant to brute force attack.

Premium materials – T Series deadbolts are made of top quality materials that provide corrosion resistance and durability.
Enhanced security – Features a solid stainless steel bolt with full 1” throw in each T Series deadbolt for extra protection.
Simple retrofit – T Series deadbolts accept SFIC cores, making rekeying easy.
Flexible integration – In addition to compatibility with other manufacturer’s cores, T Series deadbolts easily integrate into existing SFIC masterkey systems.

Deadbolt Operated by: Turning the key in the outside cylinder – Turning the inside turn lever only retracts the deadbolt

ANSI Function: E2171 (181S)

Core Housing: 7 pin housing accepts all Best cores



605 Bright Brass, 606 Satin Brass, 612 Satin Bronze, 613 Oil Rubbed Bronze, 625 Bright Chrome, 626 Satin Chrome

Deadbolt Type


ANSI Function


ANSI/BHMA Standard

ANSI/BHMA A156.2 Grade 1

ANSI Grade

ANSI Grade 1


Heavy Duty


Small Format Interchangeable Core (SFIC) Cylinder (Less Core)


1" throw bolt, 1-1/8" x 2-1/4" square corner face plate




1-1/8” x 2-3/4“ square corner

Fire Rating

UL Listed for “A” Label 3 Hour Fire Doors

ADA Compliance

Meets ADA requirements – A117.1 Accessibility Code

Door Thickness


Buy American Act Compliance

Meets Buy Amercian Act – Made in USA

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Best 8T37S-STK Interchangeable Core Classroom Deadbolt