1)Material:Malleable Iron & Investment Cast Steel 2)Threads: National & Unified Threads 3)Finish: Plain and Zinc Plated

1)Material:Malleable Iron & Investment Cast Steel (Brass,Aluminum and Zinc Alloy available upon request)

2)Threads:Standard: National & Unified Threads (Metric & Acme Threads available upon request) Course or Fine

3)Finish:Plain and Zinc Plated

wing screws/thumb screws