Caps and lids have been used on pottery as far back as 3100 BC, hopefully giving you an idea of how useful they can be. Granted, we're a few steps beyond using pottery as our primary container, but the idea of the cap has endured with our endless array of modern bottles, boxes and cups.



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  1. Design allows for quick and simple application. Fit is snug and conforms to a wide variety of flanged and beaded tubes. Covers are reusable and won't crack or split.

  2. A unique end design makes these caps perfect for applications requiring "ease of removal." The square end acts as a knob which allows the cap to be taken off very easily. Use for protecting threads, tubing and fittings from damage.

  3. At STOCKCAP we have the industries largest range of Flexible Vinyl Caps & Plastic Tips, in-stock for immediate delivery.

  4. T-Plugs are an excellent option when you need a low-cost, effective product to protect tubing ends, threads and ports during shipping and storage. The tapered design goes on easily and stays put.

  5. Ergonomically designed Grab Tabs have a user friendly bowed surface that reduces the amount of pinching pressure required for quick and easy removal and installation. Caps go on snug and stay put for a superior seal.

  6. Versatile, polyethylene Tear Caps are available for pipe threads and standard threads. Caps have a side tab that tears away when pulled down. Designed to fit male SAE/JIC O-ring face-seal fittings.

  7. Colorful Hanger Caps add convenience to hundreds of products. Providing a snug, secure fit, these caps won't slide off under the toughest conditions.

  8. The SC Series cap seals exceptionally well against dirt and moisture. The knurled exterior allows for easy on/off application. Provides positive seal for low pressure requirements.

  9. Hanger Plugs were designed for retail applications to help save space when shelf space is limited. Placed into a tube or pipe, this plug has a tight fit and will hold your product as it hangs on a hook.

  10. Vented Caps relieve the vacuum created when a hot product cools. The caps are designed to vent the gases that build up in sealed environments and vents in both directions.