STS Series - Silicone Tapered Stoppers

  • Tapered Design to Fit a Variety of Hole Diameters
  • Compressible for Better Sealing of Both Threaded and Non-Threaded Holes

Product Description:

Our Silicone Tapered Stopper (STS) product line is an industry standard for general plugging applications. With many sizes available, holes from 0.020" to 4.710" in diameter can easly be plugged. Our high temperature silicone is specially formulated to ensure reusability and reliability during masking.

Typical Applications:

  • Used as a plug in both threaded and non-threaded holes and in combination with hardware to seal off large cavities.

Helpful Hints:

  • Make sure that the major diameter of the plug is at least 15% larger than the hole diameter.
  • The minor diameter should be at least 15% smaller than the hole diameter.
  • When masking off both the front and back of a cavity, it is possible to combine two (STS) with hardware to create a liquid tight mask that resists blow-out. Call for details.
  • Silicone Tapered Stoppers are not recommended for exposure to aggressive chemicals or hydrocarbons.
Filter
Part Number COLOR MJD - IN MND - IN MPD - IN L - IN MJD - MM MND - MM MPD - MM L - MM PCS/BAG Unit Purchase
0.062t X 0.016b X 0.625"L Bla"
STS 0062-B
BLACK 0.062 0.016 0.039 0.625 1.6 0.4 1.0 15.9 1000
$45.50/EA
In Stock
0.078t X 0.020b X 1.000"L Blu
STS 0078X1000-U
BLUE 0.078 0.020 0.049 1.000 2.0 0.5 1.2 25.4 1000
$64.80/EA
In Stock
0.100t X 0.031b X 0.625"L Yel"
STS 0100X0625-L
Yellow 0.100 0.031 0.066 0.625 2.5 0.8 1.7 15.9 1000
$29.77/EA
In Stock
0.100t X 0.031b X 1.000"L Yel"
STS 0100X1000-L
Yellow 0.100 0.031 0.066 1.000 2.5 0.8 1.7 25.4 1000
$32.00/EA
In Stock
0.125t X 0.062b X 0.625"L Pin"
STS 0125-N
PINK 0.125 0.062 0.094 0.625 3.2 1.6 2.4 15.9 1000
$27.50/EA
In Stock
0.177t X 0.060b X 0.590"L Pur"
STS 0177X0591-P
Purple 0.177 0.060 0.119 0.591 4.5 1.5 3.0 15.0 1000
$32.60/EA
In Stock
0.187t X 0.109b X 0.394"L Sil"
STS 0187X0394
Clear 0.187 0.109 0.148 0.394 4.7 2.8 3.8 10.0 1000
$33.58/EA
In Stock
0.187t X 0.062b X 0.625"l Wh"
STS 0187X0625-W
White 0.187 0.062 0.125 0.750 4.7 1.6 3.1 19.0 1000
$33.58/EA
In Stock
0.187t X 0.062b X 0.750"L Rus"
STS 0187X0750-F
RUSTY 0.187 0.062 0.125 0.750 4.7 1.6 3.1 19.0 1000
$36.87/EA
In Stock
0.188t X 0.047b X 2.200"L Gre"
STS 0188X2200-Y
GRAY 0.188 0.047 0.118 2.200 4.8 1.1 3.0 55.9 1000
$60.10/EA
In Stock
0.197t X 0.049b X 1.100"L Gre"
STS 0197-G
GREEN 0.197 0.049 0.123 1.100 5.0 1.2 3.1 27.9 1000
$46.30/EA
In Stock
0.200t X 0.062b X 0.750"L Blu"
STS 0200-U
BLUE 0.200 0.062 0.131 0.750 5.1 1.6 3.3 19.0 1000
$40.17/EA
In Stock
0.216t X 0.047b X 1.500"L Pin"
STS 0216-N
PINK 0.216 0.047 0.132 1.500 5.5 1.2 3.3 38.1 1000
$56.90/EA
In Stock
0.250t X 0.125b X 0.750"L Gre"
STS 0250X0750-G
GREEN 0.250 0.125 0.188 0.750 6.4 3.2 4.8 19.1 1000
$46.30/EA
In Stock
0.250t X 0.125b X 1.000"L Rus"
STS 0250X1000-F
RUSTY 0.250 0.125 0.188 1.000 6.4 3.2 4.8 25.4 1000
$56.90/EA
In Stock
0.276t X 0.118b X 0.787"L Yel"
STS 0276X0787-L
Yellow 0.276 0.118 0.197 0.787 7.0 3.0 5.0 20.0 1000
$53.80/EA
In Stock
0.315t X 0.157b X 0.787"L Red"
STS 0315X0787-R
Red 0.315 0.157 0.236 0.787 8.0 4.0 6.0 20.0 1000
$58.50/EA
In Stock
0.343t X 0.187b X 0.625"L Blu"
STS 0343X0625-U
BLUE 0.343 0.187 0.265 0.625 8.7 4.7 6.7 15.9 1000
$58.50/EA
In Stock
0.343t X 0.187b X 1.000"L Rus"
STS 0343X1000-F
RUSTY 0.343 0.187 0.265 1.000 8.7 4.7 6.7 25.4 1000
$81.20/EA
In Stock
0.354 T X 0.177 B X 0.984" LS"
STS 0354X0984-I
IVORY 0.354 0.177 0.266 0.984 9.0 4.5 6.7 25.0 1000
$85.80/EA
In Stock
0.375t X 0.250b X 0.500"L Yel"
STS 0375X0500-L
Yellow 0.375 0.250 0.313 0.500 9.5 6.4 7.9 12.7 500
$37.65/EA
In Stock
0.375t X 0.250b X 0.750"L Yel"
STS 0375X0750-L
Yellow 0.375 0.250 0.313 0.750 9.5 6.4 8.0 19.1 500
$40.60/EA
In Stock
0.375t X 0.125b X 1.250"L Yel"
STS 0375X1250-L
Yellow 0.375 0.125 0.250 1.250 9.5 3.2 6.4 31.8 500
$49.65/EA
In Stock
0.393t X 0.236b X 0.787"L Sil"
STS 0393-U
BLUE 0.393 0.236 0.315 0.787 10.0 6.0 8.0 20.0 500
$44.70/EA
In Stock
0.394t X 0.197b X 1.890"L Whi"
STS 0394-W
White 0.394 0.197 0.296 1.890 10.0 5.0 7.5 48.0 500
$86.70/EA
In Stock
0.433t X 0.315b X 1.063"L Gre"
STS 0433X1063-G
GREEN 0.433 0.315 0.374 1.063 11.0 8.0 9.5 27.0 500
$87.35/EA
In Stock
0.437t X 0.250b X 1.000"L Rus"
STS 0437-F
RUSTY 0.437 0.250 0.344 1.000 11.1 6.4 8.7 25.4 500
$60.95/EA
In Stock
0.438t X 0.344b X 0.688"L Bla"
STS 0438-B
BLACK 0.438 0.344 0.391 0.688 11.1 8.7 10.0 17.5 500
$59.69/EA
In Stock
0.472t X 0.354b X 0.748"L Red"
STS 0472-R
Red 0.472 0.354 0.413 0.748 12.0 9.0 10.5 19.0 500
$83.65/EA
In Stock
0.473t X 0.787L Silicone Tape"
STS 0473X0787-Y
GRAY 0.473 0.312 0.393 0.787 12.0 8.0 10.0 20.0 500
$83.20/EA
In Stock
0.487t X 0.354b X 0.748"L Sil"
STS 0487
Clear 0.487 0.354 0.421 0.748 12.4 9.0 10.7 19.0 500
$88.05/EA
In Stock
0.500t X 0.313b X 0.813"L Bro"
STS 0500X0813-Z
BROWN 0.500 0.313 0.407 0.813 12.7 8.0 10.3 20.7 250
$43.08/EA
In Stock
0.500t X 0.312b X 1.000"L Bro"
STS 0500X1000-Z
BROWN 0.500 0.312 0.406 1.000 12.7 7.9 10.3 25.4 250
$45.48/EA
In Stock
0.500t X 0.125b X 2.000"L Bro"
STS 0500X2000-Z
BROWN 0.500 0.125 0.313 2.000 12.7 3.2 7.9 50.8 250
$54.03/EA
In Stock
0.512t X 0.354b X 0.984"L Bla"
STS 0512X0984-B
BLACK 0.512 0.354 0.433 0.984 13.0 9.0 11.0 25.0 250
$51.48/EA
In Stock
0.562t X 0.313b X 1.125"L Sil"
STS 0562-F
RUSTY 0.562 0.313 0.438 1.125 14.3 8.0 11.1 28.6 250
$53.60/EA
In Stock
0.563t X 0.375b X 1.000"L Clea
STS 0563
$53.60/EA
In Stock
0.563t X 0.375b X 1.000"L Blu"
STS 0563-U
BLUE 0.563 0.375 0.469 1.000 14.3 9.5 11.9 25.4 250
$53.60/EA
In Stock
0.590t X 0.393b X 1.000"L Pur"
STS 0590-P
Purple 0.590 0.393 0.492 1.000 15.0 10.0 12.5 25.4 250
$54.83/EA
In Stock
0.591t X 0.433"b X 0.787"L Br"
STS 0591-Z
BROWN 0.591 0.433 0.512 0.787 15.0 11.0 13.0 20.0 250
$52.35/EA
In Stock
0.625t X 0.437b X 0.813"L Gre"
STS 0625-G
GREEN 0.625 0.437 0.531 0.813 15.9 11.1 13.5 20.7 250
$56.87/EA
In Stock
0.656t X 0.500b X 1.000"L Sil"
STS 0656
Clear 0.656 0.500 0.578 1.000 16.7 12.7 14.7 25.4 250
$69.05/EA
In Stock
0.669t X 0.510b X 1.000"L Red"
STS 0669-R
Red 0.669 0.510 0.590 1.000 17.0 13.0 15.0 25.4 250
$74.80/EA
In Stock
0.687t X 0.437b X 1.000"L Sil"
STS 0687
Clear 0.687 0.437 0.562 1.000 17.4 11.1 14.3 25.4 250
$74.80/EA
In Stock
0.709t X 0.551b X 0.787"L Sil"
STS 0709X0787
Clear 0.709 0.551 0.630 0.787 18.0 14.0 16.0 20.0 250
$68.65/EA
In Stock
0.748t X 0.550b X 1.000"L Bla"
STS 0748-B
BLACK 0.748 0.550 0.649 1.000 19.0 14.0 16.5 25.4 250
$75.95/EA
In Stock
0.787t X 0.630b X 1.000"L Red"
STS 0787-R
Red 0.787 0.630 0.709 1.000 20.0 16.0 18.0 25.4 100
$37.54/EA
In Stock
0.812t X 0.625b X 1.000"L Sil"
STS 0812
Clear 0.812 0.625 0.719 1.000 20.6 15.9 18.2 25.4 100
$42.75/EA
In Stock
0.827t X 0.630b X 0.984"L Sil"
STS 0827X0984-R
Red 0.827 0.630 0.729 0.984 21.0 16.0 18.5 25.0 100
$43.65/EA
In Stock
0.925t X 0.750b X 1.000"L Sil"
STS 0925
Clear 0.925 0.750 0.838 1.000 23.5 19.1 21.3 25.4 100
$55.01/EA
In Stock
0.938t X 0.708b X 1.000"L Yel"
STS 0938-L
Yellow 0.938 0.708 0.823 1.000 23.8 18.0 20.9 25.4 100
$50.01/EA
In Stock
0.945t X 0.756b X 0.750"L Bla"
STS 0945-B
BLACK 0.945 0.756 0.851 0.750 24.0 19.2 21.6 19.1 100
$47.22/EA
In Stock
0.946 T X 0.709 B X 1.181" LS"
STS 0946
Clear 0.946 0.709 0.828 1.181 24.0 18.0 21.0 30.0 100
$54.93/EA
In Stock
0.984t X 0.787b X 0.885"L Sil"
STS 0984X0885
Clear 0.984 0.787 0.886 0.885 25.0 20.0 22.5 22.5 100
$49.26/EA
In Stock
0.990t X 0.880b X 0.795"L Sil"
STS 0990
Clear 0.990 0.880 0.935 0.795 25.1 22.4 23.7 20.2 100
$48.91/EA
In Stock
1.024t X 0.787b X 1.000"L Sil"
STS 1024
Clear 1.024 0.787 0.906 1.000 26.0 20.0 23.0 25.4 100
$60.83/EA
In Stock
1.062t X 0.866b X 0.984"L Sil"
STS 1062X0984
Clear 1.062 0.866 0.964 0.984 27.0 22.0 24.5 25.0 100
$62.13/EA
In Stock
1.063t X 0.905b X 1.000"L Sil"
STS 1063
Clear 1.063 0.905 0.984 1.000 27.0 23.0 25.0 25.4 100
$61.72/EA
In Stock
1.102t X 0.945b X 1.000"L Sil"
STS 1102X1000
Clear 1.102 0.945 1.023 1.000 28.0 24.0 26.0 25.4 100
$66.60/EA
In Stock
1.102t X 0.750b X 2.000"L Sil"
STS 1102X2000
Clear 1.102 0.750 0.926 2.000 28.0 19.1 23.5 50.8 100
$117.59/EA
In Stock
1.220t X 0.984b X 1.181"L Sil"
STS 1220X1181
Clear 1.220 0.984 1.102 1.181 31.0 25.0 28.0 30.0 100
$89.36/EA
In Stock
1.260t X 1.024b X 1.000"L Sil"
STS 1260
Clear 1.260 1.024 1.142 1.000 32.0 26.0 29.0 25.4 100
$84.48/EA
In Stock
1.325 (33.7mm) Major Dia. X 1"
STS 1325X0835
Clear 1.325 1.140 1.233 0.835 33.7 29.0 31.3 21.2 100
$89.39/EA
In Stock
1.338t X 1.063b X 1.000"L Sil"
STS 1338
Clear 1.338 1.063 1.200 1.000 34.0 27.0 30.5 25.4 100
$97.13/EA
In Stock
1.375t X 1.180b X 1.000"L Sil"
STS 1375
Clear 1.375 1.180 1.278 1.000 35.0 30.0 32.4 25.4 100
$111.60/EA
In Stock
1.456t X 1.180b X 1.000"L Sil"
STS 1456
Clear 1.456 1.180 1.318 1.000 37.0 30.0 33.5 25.4 100
$111.28/EA
In Stock
1.535t X 1.220b X 1.000"L Sil"
STS 1535
Clear 1.535 1.220 1.378 1.000 39.0 31.0 35.0 25.4 50
$62.33/EA
In Stock
1.614t X 1.300b X 1.000"L Sil"
STS 1614
Clear 1.614 1.300 1.457 1.000 41.0 33.0 37.0 25.4 50
$71.64/EA
In Stock
1.693t X 1.417b X 1.000"L Sil"
STS 1693
Clear 1.693 1.417 1.555 1.000 43.0 36.0 39.5 25.4 50
$81.53/EA
In Stock
1.772t X 1.457b X 1.000"L Sil"
STS 1772
Clear 1.772 1.457 1.615 1.000 45.0 37.0 41.0 25.4 50
$90.87/EA
In Stock
1.810t X 1.496b X 1.000"L Sil"
STS 1810
Clear 1.810 1.496 1.653 1.000 46.0 38.0 42.0 25.4 50
$106.95/EA
In Stock
1.968t X 1.653b X 1.000"L Sil"
STS 1968
Clear 1.968 1.653 1.811 1.000 50.0 42.0 46.0 25.4 50
$107.95/EA
In Stock
2.086t X 1.770b X 1.000"L Sil"
STS 2086
Clear 2.086 1.770 1.928 1.000 53.0 45.0 49.0 25.4 25
$64.53/EA
In Stock
2.205t X 1.890b X 1.000"L Si"
STS 2205
Clear 2.205 1.890 2.048 1.000 56.0 48.0 52.0 25.4 25
$69.02/EA
In Stock
2.362t X 1.969b X 1.772"L Sil"
STS 2362X1772
Clear 2.362 1.969 2.166 1.772 56.0 50.0 55.0 45.0 25
$128.75/EA
In Stock
2.480t X 1.968b X 1.000"L Sil"
STS 2480
Clear 2.480 1.968 2.224 1.000 63.0 50.0 56.5 25.4 25
$86.18/EA
In Stock
2.520t X 2.125b X 1.000"L Sil"
STS 2520
Clear 2.520 2.125 2.323 1.000 64.0 54.0 59.0 25.4 25
$90.62/EA
In Stock
2.677t X 2.283b X 1.000"L Sil"
STS 2677
Clear 2.677 2.283 2.480 1.000 68.0 58.0 63.0 25.4 25
$99.44/EA
In Stock
2.953t X 2.440b X 1.377"L Sil"
STS 2953
Clear 2.953 2.440 2.697 1.377 75.0 62.0 68.5 35.0 25
$141.26/EA
In Stock
3.543t X 2.953b X 1.535"L Sil"
STS 3543
Clear 3.543 2.953 3.248 1.535 90.0 75.0 82.5 39.0 10
$82.00/EA
In Stock
4.055t X 3.267b X 1.535"L Sil"
STS 4055X1535
Clear 4.055 3.267 3.661 1.535 103.0 83.0 93.0 39.0 10
$99.73/EA
In Stock
5.000t X 3.543b X 1.968"L Sil"
STS 5000
Clear 5.000 3.543 4.272 1.968 127.0 90.1 108.5 50.0 5
$107.28/EA
In Stock

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