Kadee #256 Screws Insulated Nylon 2-56 x 1/2 inch - 1 Dozen

Gearbox

Recommended Common Screw Diameter

HOn3-Scale
#713 or 714 Coupler

0-48 or 0-80 screws are the most commonly used screws.

HO-Scale
#711 or 712 Coupler

0-48 or 0-80 screws are the most commonly used screws.

HO-Scale
#9 Couplers

0-48 or 0-80 screws are the most commonly used screws.

HO-Scale
#213, 233, 242, 252, 262 Gearbox

2-56 screws are the most commonly used for center hole.

HO-Scale
#232 & 234 Gearbox

2-56 screws are the most commonly used for center hole.
0-48 or 0-80 screws are used for side holes.

HO-Scale
#178 Coupler

2-56 screws are the most commonly used for center hole.
0-48 or 0-80 screws are used for rear hole.

S-Scale
#802 or 808 Coupler

0-48 or 0-80 screws are the most commonly used screws.

On3-Scale
#803 or 807 Coupler

0-48 or 0-80 screws are the most commonly used screws.

O-Scale
#806 or 743 Coupler

2-56 screws are the most commonly used screws.

O-Scale
#817 or 817 type Gearbox

2-56 screws are the most commonly used screws.

#1-Scale
#821, 921 or 1917 Coupler

2-56 screws are the most commonly used screws.

#1-Scale
#1920 or 820 type Gearbox

4-40 screws are the most commonly used screws.

#1 & G-Scale
#911 or 831 type Gearbox

4-40 screws are the most commonly used screws.

#1 & G-Scale
#912 or 835 type Gearbox

4-40 screws are the most commonly used screws.

#1 & G-Scale
#913 or 832 type Gearbox

4-40 screws are the most commonly used screws.

#1 & G-Scale
#915 Gearbox

4-40 screws are the most commonly used screws.

G-Scale
#910 or 830 type Gearbox

4-40 screws are the most commonly used screws.