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Alliance Plastics offers one of the most versatile and complete threaded cap and plug ranges in the industry with 45 styles to choose from. These styles are designed to protect your mating threads from nicks or dings that may occur any time up to final installation. Our threaded caps and plugs mate with all of the world's most common thread styles which include:

· Imperial/Standard threads (UN, UNF, UNS, UNC and SAE) 17 styles

o 4 styles that seal for superior leakage protection

· Metric threads 8 styles

o 1 style that seals for superior leakage protection

· NPT Threads 7 styles

o 1 style that seals for superior leakage protection

· JIC Threads 6 styles

· BSP/Gas threads 5 styles

o 1 style that seals for superior leakage protection

· UNJ/UNJS 2 styles