Threaded Plastic Protection Caps

threaded_plastic_protection_cap
threaded_plastic_protection_cap

Threaded Plastic Protection Caps

Threaded Plastic Protection Caps are widely used in engineering, hydraulic, pneumatic and automotive applications and are a cost-effective way of protecting threaded tubes and studs from damage, dirt and moisture. Designed with raised ribs on the head which allows the installer to easily fit these by hand or with the a tool such as a pipe grip. Our Threaded Plastic Caps are manufactured from Low Density Polyethylene in a bright red colour for easy identification.

These Threaded Plastic Protection Caps are available in 2 different thread styles to suit metric and BSP threads.

• Ergonomic easy to grip head
• Simple to fit by hand
• No tools required
• Protects and seals internal threads
• Made from durable low density polyethylene
• Metric and BSP threads


Typical applications include engineering, hydraulic, pneumatic and automotive.

Material - LDPE (Low Density Polyethylene)
Typical colour - Red

Are you looking for further information, samples, CAD files or prices?

Please contact our customer service team or use the "Request Samples" button next to the product variations below.

Drawings and images are for reference only and should not be used for product specification. For new applications we recommend that you carry out assembly tests using samples supplied by us.

Dimension guide

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Download Dimension Guide
Threaded Plastic Protection Caps dimension guide

Product Variations

Code Description Thread D H1 H2
CAP534 Threaded Cap 1/4" x 19 BSP 14.8 11.0 8.0 Request Free Samples
CAP535 Threaded Cap 1/2" x 14 BSP 23.2 13.5 7.0 Request Free Samples
CAP536 Threaded Cap 3/4" x 14 BSP 29.4 17.7 11.2 Request Free Samples
CAP537 Threaded Cap 1" x 11 BSP 36.0 19.0 14.5 Request Free Samples
CAP538 Threaded Cap 1 1/4" x 11 BSP 44.4 19.8 13.0 Request Free Samples
CAP539 Threaded Cap M8 x 1.0 9.9 10.0 7.0 Request Free Samples
CAP540 Threaded Cap M10 x 1.0 11.9 10.0 7.5 Request Free Samples
CAP541 Threaded Cap M12 x 1.5 14.0 12.0 9.5 Request Free Samples
CAP542 Threaded Cap M14 x 1.5 15.9 12.0 9.5 Request Free Samples
CAP543 Threaded Cap M16 x 1.5 17.9 12.0 9.5 Request Free Samples
CAP544 Threaded Cap M18 x 1.5 19.9 14.0 9.5 Request Free Samples
CAP545 Threaded Cap M20 x 1.5 21.9 14.0 9.5 Request Free Samples

All dimensions are mm unless specified.

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