IP68 Metal Hex Head Sealing Plug, Waterproof Blanking Plug

Our IP68 Hex Head Sealing Plug is designed to permanently and safely seal unused threaded holes. Made from brass or stainless steel, it provides a fully waterproof and dust-proof closure for any enclosure.


Technical Parameter


  • Product Type: Hex Head Sealing Plug / Blanking Plug
  • Body Material: Nickel-Plated Brass / Stainless Steel (304, 316L)
  • O-Ring Material: NBR or Silicone Rubber
  • Ingress Protection: IP68
  • Operating Temperature: -40°C to +100°C
  • Thread Types: Metric, PG, NPT, G
  • Available Metric Sizes: M8 – M72
  • Available PG Sizes: PG7 – PG48

Key Features

  • IP68 Waterproof & Dustproof: Provides the highest level of protection, ensuring a completely sealed closure that protects against dust and long-term water immersion.
  • Hexagonal Head Design: Allows for easy and secure installation or removal with a standard wrench or socket.
  • Premium Material Options: Available in robust Nickel-Plated Brass or high-grade Stainless Steel (304/316L) for superior durability and corrosion resistance.
  • Broad Chemical Resistance: Resistant to salt water, weak acids, alcohol, oil, grease, and common solvents.
  • Aesthetic & Functional: Neatly closes off unused ports, giving equipment a clean, finished look while maintaining its protective rating.
  • Full Range of Threads: Available in Metric, PG, NPT, and G threads to fit various international standards.

IP68 Hex Head Sealing Plug, Waterproof Blanking Plug

IP68 Hex Head Sealing Plug, Waterproof Blanking Plug

Thread Product Number Thread Length
GL (mm)
Total Length
(mm)
Plug Outer Dia. (mm)
M8 × 1.25 SCIIM8 5 8 11
M10 × 1.5 SCIIM10 5 8 12
M12 × 1.5 SCIIM12 5 8 14
M14 × 1.5 SCIIM14 6 9 17
M16 × 1.5 SCIIM16 6 9 18
M18 × 1.5 SCIIM18 6 9 20
M20 × 1.5 SCIIM20 6.5 9.5 22
M22 × 1.5 SCIIM22 6.5 9.5 24
M24 × 1.5 SCIIM24 6.5 10 27
M25 × 1.5 SCIIM25 6.5 10 27
M27 × 1.5 SCIIM27 7 11 30
M28 × 1.5 SCIIM28 7 11 30
M30 × 1.5 SCIIM30 7 11 32
M32 × 1.5 SCIIM32 7 11 35
M33 × 1.5 SCIIM33 7 11 35
M36 × 1.5 SCIIM36 8 12 40
M37 × 1.5 SCIIM37 8 12 40
M40 × 1.5 SCIIM40 8 13 45
M42 × 1.5 SCIIM42 8 13 45
M47 × 1.5 SCIIM47 9 14 52
M48 × 1.5 SCIIM48 9 14 52
M50 × 1.5 SCIIM50 9 14 55
M54 × 1.5 SCIIM54 10 15 57
M60 × 1.5 SCIIM60 10 15 64
M63 × 1.5 SCIIM63 10 15 68
M64 × 2 SCIIM64 10 15 68
M70 × 2 SCIIM70 12 18 78
M72 × 2 SCIIM72 12 18 78
M75 × 2 SCIIM75 12 18 78
M80 × 2 SCIIM80 13 19 86
M88 × 2 SCIIM88 15 21 96
M100 × 2 SCIIM100 15 21 110
Thread Product Number Thread Length
GL (mm)
Total Length
(mm)
Plug Outer Dia. (mm)
PG7 SCIIPG7 5 8 14
PG9 SCIIPG9 6 9 18
PG11 SCIIPG11 6 9 20
PG13.5 SCIIPG13.5 6.5 9.5 22
PG16 SCIIPG16 6.5 10 24
PG19 SCIIPG19 6.5 10 27
PG21 SCIIPG21 7 11 30
PG25 SCIIPG25 7 11 35
PG29 SCIIPG29 8 12 40
PG36 SCIIPG36 9 14 52
PG42 SCIIPG42 10 15 57
PG48 SCIIPG48 10 15 64
PG63 SCIIPG63 12 18 78
Thread Product Number Thread Length
GL (mm)
Total Length
(mm)
Plug Outer Dia. (mm)
NPT1/4 SCIINPT1/4 5 8 14
NPT3/8 SCIINPT3/8 6 9 18
NPT1/2 SCIINPT1/2 6.5 9.5 24
NPT1 SCIINPT1 7 11 35
NPT1-1/4 SCIINPT1-1/4 8 13 45
NPT1-1/2 SCIINPT1-1/2 10 15 52
NPT2 SCIINPT2 10 15 64
NPT2-1/2 SCIINPT2-1/2 12 18 78
NPT3 SCIINPT3 15 21 96
Thread Product Number Thread Length
GL (mm)
Total Length
(mm)
Plug Outer Dia. (mm)
G1/4 SCIIG1/4 5 8 14
G3/8 SCIIG3/8 6 9 18
G1/2 SCIIG1/2 6.5 9.5 24
G1 SCIIG1 7 11 35
G1-1/4 SCIIG1-1/4 8 13 45
G1-1/2 SCIIG1-1/2 10 16 52
G2 SCIIG2 10 15 64
G2-1/2 SCIIG2-1/2 12 18 78
G3 SCIIG3 15 21 96
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