Progressive Hardware Co., Inc
DOOR KNOB SETS - SOLID BRASS
#2400 Ball knob set
Heavy duty 2-1/6" ball shaped knob is an attractive dress up for any door. Supplied with case hardened double set screws and a 3-1/2" straight spindle. Packed one pair per box. Standard spindle thread is 20 TPI.

Available finishes: US3, US4, US26D, US26
                                                               #2600 Standard duty knob set
Our most popular replacement knob for over 60 years. 2-1/4" diameter, supplied with case hardened set screws and a 3-1/2" straight spindle. Packed one pair per box. Standard spindle is 20 TPI. Also available in 16 TPI (#2600S for Sargent) and 18 TPI (#2600L for Lockwood).

Available finished: US10, US26, US26D, US3, US4
#3600 heavy duty knob set
This is the brute of our line. Almost 1 pound of solid brass. Replaces the CORBIN #1419 with #32 spindle. Outside knob is pinned to spindle (choice of three positions) and inside knob is held in place with two 5/16" case hardened set screws. Spindle has one 3/8" center on outside half and inside spindle is threaded 3/8-20.

Available finishes: US10, US26D, US3, US4
                                                                    #2600LP Pinned knob set
Solid brass pinned knob set for Lockwood mortise locks. Standard duty 2-1/4" knob is factory pinned to swivel spindle for 1-3/4" door. Spindle has two 3/8" centers. Inside knob has two case hardened set screws and spindle is threaded 3/8-18. Packed one pair per. 25 pair per carton

Available finished: US10, US3, US4, US26D
#2600P  Pinned knob set
Solid brass pinned knob set. Standard duty 2-1/4" knob is factory pinned to swivel spindle for 1-3/4" door. Outside spindle has stop pin. Spindle centers are 9/32" x 9/32". Inside knob has two case hardened set screws and spindle is threaded 3/8-20. Packed one pair per box. 25 pair per carton

Available finished: US10, US3, US4, US26D
                                                          #2600RP  Pinned knob set
Solid brass pinned knob set for Russwin  mortise locks. Standard duty 2-1/4" knob is factory pinned to swivel spindle for 1-3/4" door. Outside spindle has one 3/8" solid center. Inside spindle center is 9/32" x 9/32". Inside knob has two case hardened set screws and spindle is threaded 3/8-20. Packed one pair per box. 25 pair per carton

Available finished: US10, US3, US4, US26D
#2600LPXST    &      #2600RPXST   Pinned knob set
2-1/4" knob pinned to a straight spindle. Inside knob threads on and is secured with two case hardened set screws.

#2600LPXST - Threaded 3/8-18 for LOCKWOOD
#2600RPXST - Threaded 3/8-20 for RUSSWIN

One pair per box. 25 pair per carton

Available finishes: US10, US3, US4, US26D
#2600AP Solid brass pinned knob set for Arrow TA lockset
Outside knob is pinned to a swivel spindle, 9/32" x 9/32". Inside knob threaded 3/8-20 with two case hardened set screws. Knobs have special bushings to fit arrow TA trim. Packed one pair per box. 25 pair per carton.

Available finishes: US10, US3, US4, US26D
#2600TG solid brass pinned knob set for Arrow TG lockset
Outside knob is pinned to a 5/16" square swivel spindle, inside spindle is 9/32" square.  Inside knob threaded 3/8-20 with two case hardened set screws. Knobs have special bushings to fit arrow TG trim. Packed one pair per box. 25 pair per carton.

Available finishes: US10, US3, US4, US26D
#M2600 solid brass knob set for MarksUSA
2-1/4" solid brass knob set replaces Marks #92522. Will fit into nylon bushing of most MarksUSA escutcheons, .665 diameter also fits many other manufacturers trim. Both knobs are double set screw and are threaded for a 3/8-20 spindle. Includes four case hardened set screws. No spindle included. One pair per box. 25 pair per carton.

Available finishes: US10, US3, US4, US26D
#M2600P solid brass pinned knob set for MarksUSA
Includes one pair of M2600 knobs pinned to a swivel spindle for 1-3/4" door. Outside spindle has stop pin and both centers are 9/32". Inside knob is threaded 3/8-20 and has two case hardened set screws. Packed one pair per box. 25 pr per carton

Available finishes: US10, US3, US4, US26D
#K6220 Thru-bolted knob/rose assembly
Typically used on mortise locks. Each spring loaded spindle is 9/32" square. Set is thru bolted and includes screws for both 1-3/8" and 1-3/4" doors. Replaces MarksUSA #K9220. Knob and rose are pre-assembled.

Packed one pair per box.

Available finishes: US3 , US26D
#2638 Brass Knobs for 3/8" Heavy Duty Spindles
Standard duty 2-1/4" knob is tapped 1/2-20 for 3/8" heavy duty spindles. Comes with four case hardened set screws. No spindle included

Only available in US3

Packed one pair per box.
Knob Set Screws

#1/4-20 slot - Standard set screw, case hardened, for #2400 and #2600 knobs. Packed 144 per bag.


#5/16-24 slot - Standard set screw for our #3600 knob. Packed 12 per bag


#10-24 - Special set screw for vintage knob. Used with our tapped hole spindles. Packed 12 per bag
Knob Washers (Spacers)
Knob Washers - Used to take up any space when using vintage knobs on 10-24 tapped spindles.  5/8" OD, 25/64" ID, 1/32" thick. Packed 100 per bag
63 Brightside Ave. East Northport, NY 11731  631-757-8866