Eyepiece Thumbscrews with Rounded Tips

Replacements for the thumbscrews that hold your
eyepieces, diagonals and other valuable goodies.
Stainless steel thumbscrews have rRounded tips
reduce marring of eyepiece barrels. Knobs you
can get a grip on and extended lengths available.

Lengths refer to the shaft of the screws, not
including the head or cap. Lengths over 20mm or
3/4" may not be fully threaded.





$10 Minimum Order!

STAINLESS STEEL screws have knurled knobs and rounded tips.

METRIC SIZES:
$3.50 - M3-.5 x 12mm Stainless Steel - Package of 2 screws
$6.00 - M3-.5 x 12mm Stainless Steel - Package of 4 screws
$3.50 - M3-.5 x 16mm Stainless Steel - Package of 2 screws
$6.00 - M3-.5 x 16mm Stainless Steel - Package of 4 screws
$3.50 - M3-.5 x 25mm Stainless Steel - Package of 2 screws
$6.00 - M3-.5 x 25mm Stainless Steel - Package of 4 screws
$3.50 - M4-.7 x 10mm Stainless Steel - Package of 2 screws
$6.00 - M4-.7 x 10mm Stainless Steel - Package of 4 screws
$3.50 - M4-.7 x 12mm Stainless Steel - Package of 2 screws
$6.00 - M4-.7 x 12mm Stainless Steel - Package of 4 screws
$3.50 - M4-.7 x 16mm Stainless Steel - Package of 2 screws
$6.00 - M4-.7 x 16mm Stainless Steel - Package of 4 screws
$3.50 - M4-.7 x 25mm Stainless Steel - Package of 2 screws
$6.00 - M4-.7 x 25mm Stainless Steel - Package of 4 screws
$3.50 - M4-.7 x 35mm Stainless Steel - Package of 2 screws
$6.00 - M4-.7 x 35mm Stainless Steel - Package of 4 screws
$3.50 - M5-.8 x 20mm Stainless Steel - Package of 2 screws
$6.00 - M5-.8 x 20mm Stainless Steel - Package of 4 screws


INCH SIZES:
$3.50 - 4-40 x 3/8" Stainless Steel - Package of 2 screws
$6.00 - 4-40 x 3/8" Stainless Steel - Package of 4 screws
$3.50 - 4-40 x 1/2" Stainless Steel - Package of 2 screws
$6.00 - 4-40 x 1/2" Stainless Steel - Package of 4 screws
$3.50 - 4-40 x 3/4" Stainless Steel - Package of 2 screws
$6.00 - 4-40 x 3/4" Stainless Steel - Package of 4 screws
$3.50 - 4-40 x 1" Stainless Steel - Package of 2 screws
$6.00 - 4-40 x 1" Stainless Steel - Package of 4 screws
$3.50 - 6-32 x 3/8" Stainless Steel - Package of 2 screws
$6.00 - 6-32 x 3/8" Stainless Steel - Package of 4 screws
$3.50 - 6-32 x 1/2" Stainless Steel - Package of 2 screws
$6.00 - 6-32 x 1/2" Stainless Steel - Package of 4 screws
$3.50 - 6-32 x 3/4" Stainless Steel - Package of 2 screws
$6.00 - 6-32 x 3/4" Stainless Steel - Package of 4 screws
$3.50 - 6-32 x 1" Stainless Steel - Package of 2 screws
$6.00 - 6-32 x 1" Stainless Steel - Package of 4 screws
$14.00 - 6-32 x 3" Stainless Steel - Package of 3 screws (Only the last 1" of the screw is threaded)
$3.50 - 8-32 x 3/8" Stainless Steel - Package of 2 screws
$6.00 - 8-32 x 3/8" Stainless Steel - Package of 4 screws
$3.50 - 8-32 x 1/2" Stainless Steel - Package of 2 screws
$6.00 - 8-32 x 1/2" Stainless Steel - Package of 4 screws
$3.50 - 8-32 x 3/4" Stainless Steel - Package of 2 screws
$6.00 - 8-32 x 3/4" Stainless Steel - Package of 4 screws
$3.50 - 8-32 x 1" Stainless Steel - Package of 2 screws
$6.00 - 8-32 x 1" Stainless Steel - Package of 4 screws
$6.00 - 10-32 x 1/2" Stainless Steel - Package of 4 screws
$6.00 - 10-32 x 3/4" Stainless Steel - Package of 4 screws
$6.00 - 10-32 x 1" Stainless Steel - Package of 4 screws
$6.00 - 10-24 x 5/8" Stainless Steel - Package of 4 screws
$6.00 - 10-24 x 1" Stainless Steel - Package of 4 screws

$10.00 - #SN4I420x12 - 1/4-20 x 1/2" Stainless Steel with 1" Diameter Knurled Caps - Package of 4 screws
$10.00 - #SN4I420x34 - 1/4-20 x 3/4" Stainless Steel with 1" Diameter Knurled Caps - Package of 4 screws
$10.00 - #SN4I420x1 - 1/4-20 x 1" Stainless Steel with 1" Diameter Knurled Caps - Package of 4 screws


BRASS thumbscrews are softer than stainless steel and have
higher profile knurled knobs. (Tips not rounded)

INCH SIZES:
$4.50 - 6-32 x 1/4" Brass - Package of 2 screws
$7.50 - 6-32 x 1/4" Brass - Package of 4 screws
$4.50 - 6-32 x 1/2" Brass - Package of 2 screws
$7.50 - 6-32 x 1/2" Brass - Package of 4 screws
$4.50 - 6-32 x 3/4" Brass - Package of 2 screws
$7.50 - 6-32 x 3/4" Brass - Package of 4 screws
$4.50 - 6-32 x 1" Brass - Package of 2 screws
$7.50 - 6-32 x 1" Brass - Package of 4 screws
$4.50 - 8-32 x 1/4" Brass - Package of 2 screws
$7.50 - 8-32 x 1/4" Brass - Package of 4 screws
$4.50 - 8-32 x 1/2" Brass - Package of 2 screws
$7.50 - 8-32 x 1/2" Brass - Package of 4 screws
$4.50 - 8-32 x 3/4" Brass - Package of 2 screws
$7.50 - 8-32 x 3/4" Brass - Package of 4 screws
$4.50 - 8-32 x 1" Brass - Package of 2 screws
$7.50 - 8-32 x 1" Brass - Package of 4 screws
$5.50 - 10-32 x 1/2" Brass - Package of 2 screws
$8.50 - 10-32 x 1/2" Brass - Package of 4 screws
$5.50 - 10-32 x 3/4" Brass - Package of 2 screws
$8.50 - 10-32 x 3/4" Brass - Package of 4 screws
$5.50 - 1/4-20 x 3/8" Brass - Package of 2 screws (Tips not rounded)
$8.50 - 1/4-20 x 3/8" Brass - Package of 4 screws (Tips not rounded)
$5.50 - 1/4-20 x 1/2" Brass - Package of 2 screws (Tips not rounded)
$8.50 - 1/4-20 x 1/2" Brass - Package of 4 screws (Tips not rounded)
$5.50 - 1/4-20 x 3/4" Brass - Package of 2 screws (Tips not rounded)
$8.50 - 1/4-20 x 3/4" Brass - Package of 4 screws (Tips not rounded)
$6.00 - 1/4-20 x 1" Brass - Package of 2 screws (Tips not rounded)
$9.00 - 1/4-20 x 1" Brass - Package of 4 screws (Tips not rounded)
$6.00 - 1/4-20 x 1.25" Brass - Package of 2 screws (Tips not rounded)
$9.00 - 1/4-20 x 1.25" Brass - Package of 4 screws (Tips not rounded)



Stainless Steel Socket Cap Screws: (Not thumbscrews!)

$3.00 - M6 x 20mm Stainless Steel Socket Cap Screws, package of 8 (Not thumbscrews!)
$3.00 - 1/4-20 x 3/4" Stainless Steel Socket Cap Screws, package of 8 (Not thumbscrews!)
$3.00 - 1/4-20 x 1" Stainless Steel Socket Cap Screws, package of 8 (Not thumbscrews!)



Price includes shipping in the USA! - - - $10 Minimum Order!

Ordering Information




If you are unsure of the size you need, check out
the Thumbscrew Assortment Kit


Custom Sizes!
Stainless steel thumbscrews with low profile black plastic knobs
are available in sizes from 4-40 to 3/8" and M3 to M10. Please
email for pricing and delivery.


Nylon Thumbscrews are Here
Metric Slotted Nylon Thumbscrews are Here


M3 and M4 are the two most likely metric thumbscrews used
in off-shore accessories. These are the ones that are either
too small to grip or are lost in the grass!

(The screws below are not available, for reference only)


M3-.5 screws are used in many off-shore 1-1/4" focusers, diagonals, barlows, etc.
M4-.7 screws are used in many off-shore 2" focusers, diagonals, etc.


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