Allstar Performance Filler Cap Silver with Weld-In Alum Bung Small | ALL36160 2006-ford-f-150-esi7587110 What material are these clamps

What material are these clamps made from

"name":"What stud diameter and grip length does the ALL19073 use

Gasket Intake Manifold Bolt Set - Super Flanged Head 6082MRG

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the ALL81256 includes a wire hold down

Allstar Performance Filler Cap Silver with Weld-In Alum Bung Small | ALL36160 2006-ford-f-150-esi7587110 What material are these clampsThe Allstar Performance Filler Cap Silver with Weld In Aluminum Bung Small ALL36160 is a bung and cap kit that includes a weld on aluminum bung and an easy grip, O ring sealed aluminum cap for a positive seal. The kit is commonly used as an inspection plug or filler plug. This small kit has a 1 3 8 inch opening, and the cap is finished in silver anodize. Spec Sheet A manufacturer spec sheet is available for this bung and cap kit. View the Allstar