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Silicone First Thread Masking Plugs with Handle

  • VTMP Silicone First Thread Masking Plugs with Handle
  • Diagram of masking plugs that cover lead in or first thread for us in powder coating or painting
Silicone first thread masking plugs with length, plug size and first thread flange areas shown for understanding dimensions

Diagram of Dimensions for First Thread Masking Plugs
(with handle)

Plugs to mask lead-in/first-thread in powder coating, e-coating, anodizing, plating, painting

Masking plugs for SAE, UNC or metric threads where the first thread must also be masked. Ideal for powder coating, anodizing or other metal finishing. Viadon's Silicone First Thread Masking Plugs have a handle to make insertion and removal quick and easy in threaded blind holes.

Learn how to choose the best masking plug for your needs withi this handy cross-reference chart: Masking Plugs For Threaded Holes Chart.

These plugs are specifically designed for the most common thread sizes, and we carry the most popular ones from 6-32 & M4 through other commmon sizes like 1/4-20 and M10 even up to M20.

The straight wall of the plug section stays firmly in place, being sized specifically for each internal thread dimension. And the top flange perfectly masks off the lead thread of a hole, allowing for perfectly masked threaded holes each and every time.

Made from fully cured silicone to avoid leaching into plating tanks, or for use in powder coating, e-coating, plating, and anodizing. These plugs can withstand temperatures up to 600°F / 315°C.

Custom sizes and shapes are available with low cost tooling. Contact Us today for a quote! Stock items are subject to availability, but are usually available for shipment within 24 hours.

  • Available Parts
    Part # Color A (in.) B (in.) C (in.) H (in.) For Thread: Price Qty / Bag Qty (bags)  
    VTMP-0107 Clear 0.107 0.210 0.138 0.820 6-32 $32.00 1000 Add to Shopping List
    VTMP-0141 Pink 0.141 0.230 0.161 0.860 M4 $32.54 1000 Add to Shopping List
    VTMP-0178 Purple 0.178 0.220 0.207 0.820 M5 $33.70 1000 Add to Shopping List
    VTMP-0208 Clear 0.208 0.295 0.248 0.964 M6 $26.08 500 Add to Shopping List
    VTMP-0218 Yellow 0.218 0.200 0.260 0.450 1/4-20 $24.10 500 Add to Shopping List
    VTMP-0278 Lt Green 0.278 0.200 0.320 0.500 5/16-18 $35.82 500 Add to Shopping List
    VTMP-0283 Dk Blue 0.283 0.200 0.335 0.586 M8-1.25 $36.00 500 Add to Shopping List
    VTMP-0336 White 0.336 0.250 0.385 0.600 3/8-16 $33.55 500 Add to Shopping List
    VTMP-0358 Clear 0.358 0.241 0.409 0.615 M10 $18.22 250 Add to Shopping List
    VTMP-0451 Clear 0.451 0.352 0.510 0.750 1/2-13 $47.88 250 Add to Shopping List
    VTMP-0724 Yellow 0.724 0.512 0.811 1.127 M20 $42.00 100 Add to Shopping List

     

    Custom sizes and shapes are available. Contact Viadon for a low-cost tooling quote.

  • Technical Specifications
    • Temperature Range: Up to 600°F/315°C
    • Can plug holes from 0.062" up to 4.75"
    • Typical Uses: Masking situations involving threaded or non-threaded blind or through holes. Also, perfect for just about any metal finishing situation, including powder coating, e-coating, plating and anodizing.
    • Material: Silicone
    • Color: White
    • Re-usable.

    First Thread Masking Plug with Handle

    Silicone first thread masking plugs with handle diagram

    Diagram of Dimensions for First Thread Masking Plugs
    (with handle)

     

    Custom sizes and shapes are available. Contact Viadon for a low-cost tooling quote.

  • Masking 101 Helpful Hints

    Identifying the correct thread makes selecting the right plug quick and easy. Check the chart on the "Available Products" tab to see which plug is best for a given threaded hole. Then insert the plug fully, ensuring that the upper flange area is fully seated on the first thread of the tapped hole.

    • VTMP's are ideal for use in powder coating, e-coating, plating, and anodizing.
    • VTMP's offer excellent high temperature and good chemical resistance.
    • Bottom diameter should be 15% smaller than the hole diameter, for best fit.
    • Twist slightly to fully "seat" plug flange on first threads.
    • Use handle to quickly remove plugs when finishing is complete.

     

    Need a custom size not listed here? Contact Viadon for a low-cost tooling quote!

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