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Masking Straight Caps

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These Masking Straight Caps are typically used to mask studs and tube ends. They have excellent sealing capabilities due to the flexible material that they are manufactured from. Ideal applications include; powder coating, e-coating, plating, anodizing and blasting.

Although they are primarily designed fpr use as a cap, if inverted, they can also be used to plug holes.

Available in a choice of two materials; Silicone and EPDM. Silicone is a premium masking material due to its high temperature and chemical resistant properties. EPDM is a more economical material option with a lower heat resistance but superior chemical resistance. Both material options can be used multiple times.

  • Materials: Silicone 60F (316C) and EPDM 425F (218C)
  • Colors: Blue, Black, White, Green, Grey, Pink and Yellow
  • Hardness: Durometer (Shore A) 55+5

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187 results
Product SKUs information
Item Code Price range Availability Cap Inside Diameter Inside Height Maximum Temperature View
$0.3203 - $0.8897 3000 In stock
0.295 in
1.750 in
425 °F
$0.2703 - $0.7506 3675 In stock
0.312 in
1.500 in
425 °F
$0.3483 - $0.9672 1000 In stock
0.355 in
1.500 in
425 °F
$0.3203 - $0.8897 16000 In stock
0.234 in
1.125 in
600 °F
$0.3009 - $0.8357 890 In stock
0.250 in
1.000 in
600 °F
$0.312 - $0.8667 4600 In stock
0.281 in
1.000 in
600 °F
$0.3423 - $0.9509 5000 In stock
0.295 in
1.000 in
600 °F
$0.4596 - $1.2767 3000 In stock
0.295 in
1.750 in
600 °F
$0.387 - $1.0751 68500 In stock
0.312 in
1.500 in
600 °F
$0.4956 - $1.3767 29489 In stock
0.355 in
1.500 in
600 °F
$0.2537 - $0.7049 16996 In stock
0.187 in
1.000 in
600 °F
$0.1992 - $1.29 4596 In stock
0.250 in
1.000 in
425 °F
$0.218 - $0.6056 3000 In stock
0.281 in
1.000 in
425 °F
$0.2387 - $0.6629 8000 In stock
0.295 in
1.000 in
425 °F
$0.2619 - $0.7274 3847 In stock
0.197 in
0.500 in
600 °F
$0.2925 - $0.8124 44770 In stock
0.223 in
1.000 in
600 °F
$0.2925 - $0.8124 6648 In stock
0.234 in
0.500 in
600 °F
$0.5126 - $1.4237 6375 In stock
0.375 in
1.500 in
600 °F
$0.3591 - $0.9975 541 In stock
0.375 in
1.500 in
425 °F
$0.3147 - $0.8741 200 In stock
0.437 in
1.000 in
425 °F
  • of 10
Straight Cap - Cap Inside Diameter - 7.5 mm | 0.295 in ; ; Black

SC029517B

Price Range
$0.8897 - $0.3203

Stock Levels
3000 In stock
Attributes
  • Cap Inside Diameter
    0.295 in
  • Inside Height
    1.750 in
  • Maximum Temperature
    425 °F
  • Colour
    Black
  • Compatible Thread Sizes (All)
    M8
Straight Cap - Cap Inside Diameter - 7.9 mm | 0.312 in ; ; Black

SC031215B

Price Range
$0.7506 - $0.2703

Stock Levels
3675 In stock
Attributes
  • Cap Inside Diameter
    0.312 in
  • Inside Height
    1.500 in
  • Maximum Temperature
    425 °F
  • Colour
    Black
  • Compatible Thread Sizes (All)
    3/8-14
Straight Cap - Cap Inside Diameter - 9 mm | 0.355 in ; ; Black

SC035515B

Price Range
$0.9672 - $0.3483

Stock Levels
1000 In stock
Attributes
  • Cap Inside Diameter
    0.355 in
  • Inside Height
    1.500 in
  • Maximum Temperature
    425 °F
  • Colour
    Black
  • Compatible Thread Sizes (All)
    3/8-14
Straight Cap - Cap Inside Diameter - 5.9 mm | 0.234 in ; ; Natural

SC02341125A

Price Range
$0.8897 - $0.3203

Stock Levels
16000 In stock
Attributes
  • Cap Inside Diameter
    0.234 in
  • Inside Height
    1.125 in
  • Maximum Temperature
    600 °F
  • Colour
    Natural
  • Compatible Thread Sizes (All)
    1/4-20
Straight Cap - Cap Inside Diameter - 6.4 mm | 0.250 in ; ; Natural

SC025010A

Price Range
$0.8357 - $0.3009

Stock Levels
890 In stock
Attributes
  • Cap Inside Diameter
    0.250 in
  • Inside Height
    1.000 in
  • Maximum Temperature
    600 °F
  • Colour
    Natural
  • Compatible Thread Sizes (All)
    5/16-18
Straight Cap - Cap Inside Diameter - 7.1 mm | 0.281 in ; ; Natural

SC028110A

Price Range
$0.8667 - $0.312

Stock Levels
4600 In stock
Attributes
  • Cap Inside Diameter
    0.281 in
  • Inside Height
    1.000 in
  • Maximum Temperature
    600 °F
  • Colour
    Natural
  • Compatible Thread Sizes (All)
    5/16-18
Straight Cap - Cap Inside Diameter - 7.5 mm | 0.295 in ; ; Natural

SC029510A

Price Range
$0.9509 - $0.3423

Stock Levels
5000 In stock
Attributes
  • Cap Inside Diameter
    0.295 in
  • Inside Height
    1.000 in
  • Maximum Temperature
    600 °F
  • Colour
    Natural
  • Compatible Thread Sizes (All)
    M8
Straight Cap - Cap Inside Diameter - 7.5 mm | 0.295 in ; ; Natural

SC029517A

Price Range
$1.2767 - $0.4596

Stock Levels
3000 In stock
Attributes
  • Cap Inside Diameter
    0.295 in
  • Inside Height
    1.750 in
  • Maximum Temperature
    600 °F
  • Colour
    Natural
  • Compatible Thread Sizes (All)
    M8
Straight Cap - Cap Inside Diameter - 7.9 mm | 0.312 in ; ; Natural

SC031215A

Price Range
$1.0751 - $0.387

Stock Levels
68500 In stock
Attributes
  • Cap Inside Diameter
    0.312 in
  • Inside Height
    1.500 in
  • Maximum Temperature
    600 °F
  • Colour
    Natural
  • Compatible Thread Sizes (All)
    3/8-14
Straight Cap - Cap Inside Diameter - 9 mm | 0.355 in ; ; Natural

SC035515A

Price Range
$1.3767 - $0.4956

Stock Levels
29489 In stock
Attributes
  • Cap Inside Diameter
    0.355 in
  • Inside Height
    1.500 in
  • Maximum Temperature
    600 °F
  • Colour
    Natural
  • Compatible Thread Sizes (All)
    3/8-14
Straight Cap - Cap Inside Diameter - 4.7 mm | 0.187 in ; ; Natural

SC018710A

Price Range
$0.7049 - $0.2537

Stock Levels
16996 In stock
Attributes
  • Cap Inside Diameter
    0.187 in
  • Inside Height
    1.000 in
  • Maximum Temperature
    600 °F
  • Colour
    Natural
  • Compatible Thread Sizes (All)
    #12-24,M5
Masking Straight Cap & Plug - 6.4 mm | 0.250 in Cap Inside Diameter, 218.3 °C | 425 °F Temperature, Black Inside Height Black

SC025010C

Price Range
$1.29 - $0.1992

Stock Levels
4596 In stock
Attributes
  • Cap Inside Diameter
    0.250 in
  • Inside Height
    1.000 in
  • Maximum Temperature
    425 °F
  • Colour
    Black
  • Compatible Thread Sizes (All)
    5/16-18
Straight Cap - Cap Inside Diameter - 7.1 mm | 0.281 in ; ; Black

SC028110B

Price Range
$0.6056 - $0.218

Stock Levels
3000 In stock
Attributes
  • Cap Inside Diameter
    0.281 in
  • Inside Height
    1.000 in
  • Maximum Temperature
    425 °F
  • Colour
    Black
  • Compatible Thread Sizes (All)
    5/16-18
Straight Cap - Cap Inside Diameter - 7.5 mm | 0.295 in ; ; Black

SC029510B

Price Range
$0.6629 - $0.2387

Stock Levels
8000 In stock
Attributes
  • Cap Inside Diameter
    0.295 in
  • Inside Height
    1.000 in
  • Maximum Temperature
    425 °F
  • Colour
    Black
  • Compatible Thread Sizes (All)
    M8
Straight Cap - Cap Inside Diameter - 5 mm | 0.197 in ; ; Natural

SC019705A

Price Range
$0.7274 - $0.2619

Stock Levels
3847 In stock
Attributes
  • Cap Inside Diameter
    0.197 in
  • Inside Height
    0.500 in
  • Maximum Temperature
    600 °F
  • Colour
    Natural
  • Compatible Thread Sizes (All)
    M6
Straight Cap - Cap Inside Diameter - 5.7 mm | 0.223 in ; ; Natural

SC022310A

Price Range
$0.8124 - $0.2925

Stock Levels
44770 In stock
Attributes
  • Cap Inside Diameter
    0.223 in
  • Inside Height
    1.000 in
  • Maximum Temperature
    600 °F
  • Colour
    Natural
  • Compatible Thread Sizes (All)
    M6
Straight Cap - Cap Inside Diameter - 5.9 mm | 0.234 in ; ; Natural

SC023405A

Price Range
$0.8124 - $0.2925

Stock Levels
6648 In stock
Attributes
  • Cap Inside Diameter
    0.234 in
  • Inside Height
    0.500 in
  • Maximum Temperature
    600 °F
  • Colour
    Natural
  • Compatible Thread Sizes (All)
    1/4-20
Straight Cap - Cap Inside Diameter - 9.5 mm | 0.375 in ; ; Natural

SC037515A

Price Range
$1.4237 - $0.5126

Stock Levels
6375 In stock
Attributes
  • Cap Inside Diameter
    0.375 in
  • Inside Height
    1.500 in
  • Maximum Temperature
    600 °F
  • Colour
    Natural
  • Compatible Thread Sizes (All)
    M10
Straight Cap - Cap Inside Diameter - 9.5 mm | 0.375 in ; ; Black

SC037515C

Price Range
$0.9975 - $0.3591

Stock Levels
541 In stock
Attributes
  • Cap Inside Diameter
    0.375 in
  • Inside Height
    1.500 in
  • Maximum Temperature
    425 °F
  • Colour
    Black
  • Compatible Thread Sizes (All)
    M10
Straight Cap - Cap Inside Diameter - 11.1 mm | 0.437 in ; ; Black

SC043710B

Price Range
$0.8741 - $0.3147

Stock Levels
200 In stock
Attributes
  • Cap Inside Diameter
    0.437 in
  • Inside Height
    1.000 in
  • Maximum Temperature
    425 °F
  • Colour
    Black
  • Compatible Thread Sizes (All)
    7/16