Cylindrical Locks - 8K

8K Cylindrical

The 8K Cylindrical Lock meets or exceeds the following standards:

Certification ANSI A156.2 Series 4000, Grade 1 as certified in Builder Hardware ManufacturersAssociation directory ascomplying with this standard. (Formerly FF-H-00106C Series 161.)

Underwriters Laboratories Listed by Underwriters Laboratories for use on 3 hour, A label single swinging doors. GYJT Builders Hardware-Single point Locks or Latches.

 

 

8K FEATURES

  • Quick, economical rekeying with the BEST original interchangeable core.
  • Knobs machined from brass or bronze bar stock.*
  • Rotating knob face provides for easy hand of door change without removing the knob.
  • No keeper hole on keyed knobs for added security.
  • Keyed knob removable only after the core is removed.
  • The tactile or knurled knob feature designed for blind, safety and accessibility applications.
  • The optional breakaway feature prevents the lockset from being overpowered by a wrench.
  • 9⁄16" throw, deadlocking latch.
  • Spin free knob feature permits the lock to be operated only by use of a key.
  • Friction insert inside rose resists loosening.
  • Steel retractor with low friction bearings for smooth, wear resistant operation.
  • Long bearing length in chassis for smooth, wear resistant operation.

* All knob styles feature solid extruded knob material.

 

Products covered by one or more of the following patents:

US: 4,843,852; 4,424,691; 4,262,507; 4,428,212; 4,312,201; 4,428,570; 4,318,558; 4,779,908; 4,342,478; 4,444,034; 4,435,967; 4,496,178; 4,394,821; 4,550,581; 4,437,695; 4,655,059; D289,369; D290,085

 

CANADA: 1,179,855; 1,184,773; 1,184,774; 1,194,057; 1,196,359; 1,229,358; 1,241,980; 1,327,279

Top

 

 

8K SPECIFICATIONS

Materials: Internal parts are brass or corrosion treated steel.

Chassis: 2 1⁄16" diameter to fit 2 1⁄8" hole in door.

Backset: 2 3⁄4" standard, 3 3⁄4" and 5" available.

Latch: 9⁄16" throw. Front 2 1⁄4 x 11⁄8" beveled. Latch housing fits 1" hole in edge of door.

Knobs: Diameter– 2 1⁄8" ; Projection from door– 2 7⁄8" #4, #6 Knob Material - Machined from solid brass or bronze.

Roses: All roses are brass or bronze reinforced with steel liner. Roses are threaded to chassis. “A”– round, 3 3⁄8" diameter; “C”– round, 2 9⁄16" diameter; “D”– convex round, 3 3⁄8" diameter “E”– special trim for 2 1⁄8" to 3" thick doors

Door Thickness: Adjustable from 1 3⁄8" to 2" standard. Special “E” trim for 2 1⁄8" to 3" doors available. The “B” style square trim is for doors 1 3⁄4" to 2" only.

Strike: (STK)– 2 3⁄4" x 1 1⁄8" with curved lip and box standard (ANSI A115.3) (S3)– 4 7⁄8" x 1 1⁄4" with curved lip and box available (ANSI A115.2) (S3-7/8)– Conforms to ANSI A115.2 for 1 3/4" doors.(4 7⁄8" x 1 7⁄8" flat)

Latch & Strike Screws:

(STK) Strike Package– (1) 2 3⁄4" Strike plate, (4) #8-32 / #8-16 x 3⁄4" Phillips flat head screws.

8KS3 Strike Package–(1) 4 7⁄8" Strike plate, (2) #8-32 / #8-16 x 3⁄4" Phillips flat head screws, (2) #12-24 / #12-12 x 3⁄4" Phillips flat head screws. Security head machine screws and driver can be ordered for added security.

Finish: 605– bright brass, clear coated; 606– satin brass, clear coated; 611– bright bronze, clear coated; 612– satin bronze, clear coated; 613– oxidized satin bronze, oil rubbed; 625– bright chromium plated; 626– satin chromium plated; 690– dark bronze coated

Top

 

 

HOW TO ORDER - 8K

Top

 

 

8K FUNCTIONS

 

Top

 

 

SPECIAL FUNCTIONS

 

Top

 

 

SPECIAL FEATURES

Breakaway Feature

When excessive force (approx. 300 inch lbs.) is applied to #4, #6 keyed knobs, they “breakaway” and spin freely, thus allowing entrance only by key. Simple part replacement returns lock to functional usage.

To order: Designate “BRK” on options of “How to Order".

 

Spin Free Feature

This unique feature is for #4, #6 knobs and is standard on H and HJ functions and optional on D and W. The spin free feature allows the outside knob to spin freely at all times while the core and knob face remain stationary, thus permitting the lock to be operated only by use of a key.

To order: Designate “SPN” on options of “How to Order”.

 

Reversible Knob Face

1. Core is upside down (wrong side)

2. Partially remove core with Control Key.

3. Rotate knob face 180 degrees.

4. Reinsert core with "BEST" in up position.

The locket is easily reversible for either hand of the door without removing the keyed knob.

 

Tactile Feature

Grooves are machined into #4 and #6 solid brass or bronze knobs, to improve grip, or can be used as a warning in hazardous areas. This option can be used for blind, safet or accessibility applications.

To order: Designate “TAC” on options of “How to Order”.

 

Knurled Feature

This feature is available only on #6 knob only. The knurling is machined into the outer edge of the knob. The knurled feature can be used for blind, safety or accessibility applications.

To order: Designate “KNL” on options of “How to Order”.

 

Lead Lined Feature

Lead lined can be used to protect against X-rays. Since the majority of lead lined doors contain the lead in the surface of the door, the 8K lockset provides lead lining for the holes cut in the door when preparing the door for the trim. A 3⁄16" lead slug is installed in the knob face.

To order: Designate “LL” on options of “How to Order".

Top

 

 

TRIM VARIATIONS

Top

 

 

SHIPPING WEIGHTS

The chart below gives the approximate shipping weight for standard functions of 8K lockset. This weight includes the weight of the lockset with the #4 style knob, “A” style rose, latch, strike package, and box. Listed separately are the approximate weights for “with core” and “less core” shipments.

Top

 

 

SAMPLE SPECIFICATIONS

A. Locksets and Latchsets

Best Access Systems - No Substitution.

1. Locksets must be medium-duty cylindrical type with 2 3/8 inch backset, or greater as specified, with a 1/2 inch throw latchbolt.

2. Provide locksets with Best 7-pin interchangeable core.

3. Locksets and latchsets must conform to ANSI A156.2, Series 4000, Grade 2, and be UL listed.

4. Locksets and cores to be of the same manufacturer to maintain complete lockset warranty.

5. Locks to have solid shank with no opening for access to keyed lever keeper.

6. Keyed lever to be removable only after core is removed, by authorized control key, to allow access to lever "keeper".

7. Permanent core face must be the same finish as the lockset finish.

8. Levers must be zinc material with a minimum wall thickness of .060.

 

B. Keys and Keying

A. Provide construction cores and keys during the construction period. Construction, control and operating keys and cores shall not be part of the Owner's permanent keying system or furnished on the same keyway as the Owner's permanent keying system. Permanent cores and keys prepared according to the accepted keying schedule will be furnished to the Owner by the local Best Access Systems office prior to occupancy. The Owner or Owner’s agent will install permanent cores and return the construction cores to the Best Access Systems office.

B. All cylinders shall be Best 7–pin, interchangeable core and keyed into a [new] [existing] factory registered Grand Master Key System with a restricted keyway.

C. Permanent keys and cores shall be stamped with the applicable key mark for identification. These visual key control marks or codes will not include the actual key cuts. Permanent keys will also be stamped ["Do Not Duplicate".] ["U.S. Gov.-Do Not Duplicate".] [ .]

D. Grand Masterkeys, Masterkeys and other Security Keys shall be transmitted to the Owner by U.P.S., delivery confirmation requested.

E. Furnish keys in the following quantities: 1 each Grand Masterkey 2 each Masterkeys per set 1 each Change key per each keyed core 2 each Construction masterkeys 2 each Control keys

F. Computer key and core control software Best Access System Keystone® 600 will be provided and registered to the owner by the local Best Access Systems office. The owner will furnish compatible hardware to operate the key and core control program. The Best Access Systems office will provide initial training on computer key and core control as well as on-going support including software updates.

Top

 

 

PATENTED KEYING

BEST Peaks®– For advanced solutions in key control and security, BEST offers Peaks®, the most adaptable and cost effective patented keying system on the market. The patented mechanism ensures that cylinders and cores will only operate with the Peaks® keys, which are only available through authorized BEST distributors.

For BEST products, Peaks® offers the security and convenience of a patented solution for interchangeable core. Peaks® is also available to adapt to a wide variety of locks from other manufacturers. All cylinders can be keyed into the same system, providing you the ability to operate all the locks at your facility using a single key, regardless of the lock manufacturer.

Top

 

 

DEADLOCKING LATCHES

 

8KL3 Deadlocking Latch

Bolt throw – 9/16"

Backset – 2 3/4"

Front – 2 1/4" x 1 1/8" beveled.

Tube – To fit 1" diameter hole in door edge.

To order: (with unit) designate “83K” on how to order (page 3). To order: (without unit) designate “8KL3-SL” (Spring Latch) or DL (Deadlocking Latch) and finish.

 

8KL4 Deadlocking Latch

Bolt throw – 9/16"

Backset – 3 3/4"

Front – 2 1/4" x 1 1/8" beveled.

Tube – To fit 1" diameter hole in door edge.

To order: (with unit) designate “84K” on how to order (page 3).

To order: (without unit) designate “8KL4-SL” (Spring Latch) or DL (Deadlocking Latch) and finish.

 

8KL5 Deadlocking Latch

Bolt throw – 9/16"

Backset – 5"

Front – 2 1/4" x 1 1/8" beveled.

Tube – To fit 1" diameter hole in door edge.

To order: (with unit) designate “85K” on how to order (page 3).

To order: (without unit) designate “8KL5-SL” (Spring Latch) or DL (Deadlocking Latch) and finish.

Top

 

 

STRIKES

 

8KS3-7/8 Flat Strike

Dimension: Conforms to ANSI A115.2 for 1 3/4" doors (4 7/8" x 1 7/8" flat)

To order: (with unit) designate “S3-7/8” on how to order (page 3).

To order: (without unit) designate 8KS3-7/8 and finish.

 

8KS3 Strike

Dimension: Conforms to ANSI A115.2 for 1 3/4" doors (4 7/8" x 1 1/8" with curved lip).

To order: (with unit) designate “S3” on how to order (page 3).

To order: (without unit) designate 8KS3 and finish.

 

8KS2 Strike (Supplied Standard)

Dimension: Conforms to ANSI A115.2 for 1 3/8" doors (2 3/4" x 1 1/8" with curved lip and box).

To order: (with unit) designate “STK” on how to order (page 3).

To order: (without unit) designate 8KS2 and finish.

 

83K Door Preparation

 

8KS3 Strike (ANSI)

 

8KS2 Strike (Standard)

Top

 

 

SERVICE EQUIPMENT

KD304A Boring Jig Kit

The KD304A jig kit is made for boring cut outs in wooden doors for ANSI A156.2 Series 4000 cylindrical locksets, doors 1 3⁄8" to 2 1⁄4" thick. The KD304A kit includes the boring jig (to drill wood doors for 2 3⁄ 8", 2 3⁄4", 3 3⁄4" and 5" backsets), adaptor for 3⁄ 8" drill chuck, KD318 - 1" dia. bit, KD309 - 2 1⁄ 8" dia. bit. KD312 face plate marking chisel 1" x 2 1⁄4", KD315 face plate marking chisel 1 1⁄ 8" x 2 1⁄4", and KD325 strike locating pin.

To order specify: complete kit KD304A kit All components can be ordered separately except for the boring jig and 3⁄ 8" drill chuck adaptor.

 

KD 316 Spanner Wrench

All 8K locksets require the use of the KD316 spanner wrench for door mounting. This tool is included with every 10 locksets ordered. If more are needed designate quantity and KD316 on your order.

 

KD315 Face Plate Marking Chisel and KD325 Strike Plate Locating Pin

The face plate marking chisel locates the mortising for the face plate of ANSI A156.2 Series 4000 cylindrical lockset. A strike plate locating pin KD325 is available for use in conjunction with ANSI A156.2 Series 4000 cylindrical locksets.

To order specify: KD315 face plate marking chisel and/or KD325 strike plate locating pin.

 

Mortise-to-Cylindrical Lock Adaptor Kit

Mortise lock mounting may be converted to Best cylindrical lock through use of this kit.

Specifications

Materials: Stainless steel

Finish: 630 only.

Escutcheon: 3 1/2" x 8 1/2" x .050" thickness

Strike: 1 1/2" x 8" with 6 3/4" lip, 1 1/4" to center.

Face Plate: 83KF1–8" x 1 1/8" wide.

Backset: 2 3/4" Door thickness is increased 7/64" for mounting 83K series locksets.

To order specify: adaptor kit 83KA2A kit.

 

One-Piece Universal Mortise/Cylindrical-to-CylindricalAdaptor Kit

Door previously mounted with another manufacturer's lockset may be quickly adapted to a Best cylindrical lock through use of the following kit.

Specifications

Materials: Stainless steel

Finish: 630 only.

Face Plate Recess: 2 1/4" x 1 1/8"

Backset: 2 3/4"

Door Thickness: 1 3/4"

To order specify: 83KA2B

Top

8K Series

Download this Catalog
here