IP68 Metal Round Head Sealing Plug, Waterproof Blanking Plug

Our IP68 Metal Round Head Sealing Plug is designed to permanently and safely seal unused threaded holes. Made from brass or stainless steel, it provides a low-profile, waterproof, and dust-proof closure.


Technical Parameter


  • Product Type: Round 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.
  • Low-Profile Round Head: The circular head (often slotted or with a hex socket) provides a flush, aesthetic finish and is ideal for applications where a protruding hex head is not desired.
  • 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.
  • Easy Installation: Can be easily installed or removed with a standard screwdriver or Allen key.
  • Full Range of Threads: Available in Metric, PG, NPT, and G threads to fit various international standards.

IP68 Metal Round Head Sealing Plug, Waterproof Blanking Plug

IP68 Metal Round Head Sealing Plug, Waterproof Blanking Plug

Thread Product Number Thread Length
GL (mm)
Total Length
(mm)
Plug Outer Dia. (mm)
M8 × 1.25 SCIM8 5 8 11
M10 × 1.5 SCIM10 5 8 12
M12 × 1.5 SCIM12 5 8 14
M14 × 1.5 SCIM14 6 9 17
M16 × 1.5 SCIM16 6 9 18
M18 × 1.5 SCIM18 6 9 20
M20 × 1.5 SCIM20 6.5 9.5 22
M22 × 1.5 SCIM22 6.5 9.5 24
M24 × 1.5 SCIM24 6.5 10 27
M25 × 1.5 SCIM25 6.5 10 27
M27 × 1.5 SCIM27 7 11 30
M28 × 1.5 SCIM28 7 11 30
M30 × 1.5 SCIM30 7 11 32
M32 × 1.5 SCIM32 7 11 35
M33 × 1.5 SCIM33 7 11 35
M36 × 1.5 SCIM36 8 12 40
M37 × 1.5 SCIM37 8 12 40
M40 × 1.5 SCIM40 8 13 45
M42 × 1.5 SCIM42 8 13 45
M47 × 1.5 SCIM47 9 14 52
M48 × 1.5 SCIM48 9 14 52
M50 × 1.5 SCIM50 9 14 55
M54 × 1.5 SCIM54 10 15 57
M60 × 1.5 SCIM60 10 15 64
M63 × 1.5 SCIM63 10 15 68
M64 × 2 SCIM64 10 15 68
M70 × 2 SCIM70 12 18 78
M72 × 2 SCIM72 12 18 78
M75 × 2 SCIM75 12 18 78
M80 × 2 SCIM80 13 19 86
M88 × 2 SCIM88 15 21 96
M100 × 2 SCIM100 15 21 110
Thread Product Number Thread Length
GL (mm)
Total Length
(mm)
Plug Outer Dia. (mm)
PG7 SCIPG7 5 8 14
PG9 SCIPG9 6 9 18
PG11 SCIPG11 6 9 20
PG13.5 SCIPG13.5 6.5 9.5 22
PG16 SCIPG16 6.5 10 24
PG19 SCIPG19 6.5 10 27
PG21 SCIPG21 7 11 30
PG25 SCIPG25 7 11 35
PG29 SCIPG29 8 12 40
PG36 SCIPG36 9 14 52
PG42 SCIPG42 10 15 57
PG48 SCIPG48 10 15 64
PG63 SCIPG63 12 18 78
Thread Product Number Thread Length
GL (mm)
Total Length
(mm)
Plug Outer Dia. (mm)
NPT1/4 SCINPT1/4 5 8 14
NPT3/8 SCINPT3/8 6 9 18
NPT1/2 SCINPT1/2 6.5 9.5 24
NPT1 SCINPT1 7 11 35
NPT1-1/4 SCINPT1-1/4 8 13 45
NPT1-1/2 SCINPT1-1/2 10 15 52
NPT2 SCINPT2 10 15 64
NPT2-1/2 SCINPT2-1/2 12 18 78
NPT3 SCINPT3 15 21 96
Thread Product Number Thread Length
GL (mm)
Total Length
(mm)
Plug Outer Dia. (mm)
G1/4 SCIG1/4 5 8 14
G3/8 SCIG3/8 6 9 18
G1/2 SCIG1/2 6.5 9.5 24
G1 SCIG1 7 11 35
G1-1/4 SCIG1-1/4 8 13 45
G1-1/2 SCIG1-1/2 10 16 52
G2 SCIG2 10 15 64
G2-1/2 SCIG2-1/2 12 18 78
G3 SCIG3 15 21 96
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