Product Name: Closed Fastener Nuts

Standard Sizes: 3.2/4.0/4.8/6.4

Material: Aluminum/Iron/Stainless Steel

Surface Treatment: Zinc Plated/Glossy Polished

Sizes can be customized according to customer requirements

A sealed mandrel rivet is a rivet with a completely enclosed head, featuring waterproof capabilities and effectively addressing the needs of liquid environments.