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Features:
  • Plugs threaded or unthreaded holes
  • Silicone: premium masking material (due to high temperature rating) can be used multiple times
  • EPDM: a more economical material with slightly reduced heat resistance, but superior chemical resistance. Also reusable
  • Applications: powder coating, e-coating, plating and anodizing
STP Series - Tapered Masking Plugs
STP Series - Tapered Masking PlugsTapered Masking Plugs - 2
Unit of Measure
1 2 3 4 

Item #

Plugs Standard Thread UNC

Plugs Standard Thread M

Dimension A

Dimension B

Dimension C

STP001006A N/A N/A N/A 0.062 in1.600 mm N/A 0.016 in0.400 mm N/A 0.625 in15.900 mm
STP001006B N/A N/A N/A 0.062 in1.600 mm N/A 0.016 in0.400 mm N/A 0.625 in15.900 mm
STP002007A N/A N/A N/A 0.078 in2.000 mm N/A 0.020 in0.500 mm N/A 0.75 in19.100 mm
STP002007B N/A N/A N/A 0.078 in2.000 mm N/A 0.020 in0.500 mm N/A 0.75 in19.100 mm
STP003012A N/A 2"-56 N/A M2 N/A 0.125 in3.200 mm N/A 0.031 in0.800 mm N/A 0.625 in15.900 mm
STP006012A N/A 4"-40 N/A N/A 0.125 in3.200 mm N/A 0.062 in1.600 mm N/A 0.625 in15.900 mm
STP003012B N/A 2"-56 N/A M2 N/A 0.125 in3.200 mm N/A 0.031 in0.800 mm N/A 0.625 in15.900 mm
STP006012C N/A 4"-40 N/A N/A 0.125 in3.200 mm N/A 0.062 in1.600 mm N/A 0.625 in15.900 mm
STP006018A N/A N/A N/A 0.187 in4.700 mm N/A 0.062 in1.600 mm N/A 0.625 in15.900 mm
STP006018-07A N/A 8"-32 N/A N/A 0.187 in4.700 mm N/A 0.062 in1.600 mm N/A 0.75 in19.100 mm
STP006018C N/A N/A N/A 0.187 in4.700 mm N/A 0.062 in1.600 mm N/A 0.625 in15.900 mm
STP006018-07C N/A 8"-32 N/A N/A 0.187 in4.700 mm N/A 0.062 in1.600 mm N/A 0.75 in19.100 mm
STP004019-11A N/A 8"-32 N/A M4 N/A 0.197 in5.000 mm N/A 0.049 in1.200 mm N/A 1.100 in27.900 mm
STP004019-11B N/A 8"-32 N/A M4 N/A 0.197 in5.000 mm N/A 0.049 in1.200 mm N/A 1.100 in27.900 mm
STP006020A N/A 10"-24 N/A M4 N/A 0.200 in5.100 mm N/A 0.062 in1.600 mm N/A 0.75 in19.100 mm
STP006020D N/A 10"-24 N/A M4 N/A 0.200 in5.100 mm N/A 0.062 in1.600 mm N/A 0.75 in19.100 mm
STP012025A N/A 10"-24 N/A M6 N/A 0.250 in6.300 mm N/A 0.125 in3.200 mm N/A 0.75 in19.100 mm
STP012025-10A N/A 1/4"-20 N/A M6 N/A 0.250 in6.300 mm N/A 0.125 in3.200 mm N/A 1 in25.4 mm
STP012025D N/A 12"-24 N/A M6 N/A 0.250 in6.300 mm N/A 0.125 in3.200 mm N/A 0.75 in19.100 mm
STP012025-10C N/A 1/4"-20 N/A M6 N/A 0.250 in6.300 mm N/A 0.125 in3.200 mm N/A 1 in25.4 mm
STP001027A N/A N/A N/A 0.279 in7.100 mm N/A 0.016 in0.400 mm N/A 0.984 in25.000 mm
STP001027B N/A N/A N/A 0.279 in7.100 mm N/A 0.016 in0.400 mm N/A 0.984 in25.000 mm
STP018034A N/A 5/16"-18 N/A M8 N/A 0.343 in8.700 mm N/A 0.187 in4.700 mm N/A 0.625 in15.900 mm
STP018034-10A N/A 5/16"-18 N/A M8 N/A 0.343 in8.700 mm N/A 0.187 in4.700 mm N/A 1 in25.4 mm
STP018034D N/A 5/16"-18 N/A M8 N/A 0.343 in8.700 mm N/A 0.187 in4.700 mm N/A 0.625 in15.900 mm
Unit of Measure
1 2 3 4