4-40 SERIES
(All of the screws in the tables below have 3A threads and are fully
threaded )
(Screws longer than listed are available but are normally not
fully threaded.)
Knurled Style Thumbscrew
Please add Knob color and Screw type
prefix to the part number. |
B=Black,
R=Red, G=Gray, Y=Yellow, A=Alloy,
S=Stainless, Z=Zinc plate |
For
example : A 5/16 diameter Black Knurled knob fitted with a 4-40x1/4 alloy screw would have a part
number of 899B-0440-0.25A |
Note: Items at
the right of the table marked with "X" are standard items
"O" are non standard items. Please inquire
about the availability of non standards. |
Please go to the
what's new/etc page.
for information on zinc plated screw assemblies marked with a
"O" . |
Screw/L Dim. |
A Dim./Style |
Part Number |
B |
R |
G |
Y |
A |
S |
Z |
4-40x1/4" |
5/16
Knurled |
899 -0440-0.25 |
x |
x |
x |
x |
x |
x |
o |
4-40x3/8" |
5/16
Knurled |
899-0440-0.37 |
x |
x |
x |
x |
x |
x |
o |
| 4-40x1/2 |
5/16 Knurled |
899-0440-0.50 |
x |
x |
x |
x |
x |
x |
o |
| 4-40x5/8 |
5/16 Knurled |
899-0440-0.62 |
x |
x |
x |
x |
x |
x |
o |
| 4-40x3/4 |
5/16 Knurled |
899-0440-0.75 |
x |
x |
x |
x |
x |
x |
o |
| 4-40x7/8 |
5/16 Knurled |
899-0440-0.87 |
x |
x |
x |
x |
x |
x |
o |
| 4-40x1.0 |
5/16 Knurled |
899-0440-1.00 |
x |
x |
x |
x |
x |
x |
o |
Note: Listed are Shear-Loc's standard Full Thread
offerings.
We also offer many other standard & semi standard screw lengths fully
and not fully threaded.
Please call for more information
1-800-775-5668
Click Here to go back to the
Thumb Screw selection page.
Don't forget about our knobs only
and convenient knob kits
For purchasing information go to FAQ
