12 Pieces M4 Rubber Well Nuts with Stainless Steel Screws Kit Fit for Kayak Canoe Boat Marine Hardware Fasteners

Rubber nuts consist of a flanged neoprene rubber bushing with a captive brass nut.

Made of High Quality Rubber with Brass Nut, this well nuts set is sturdy, anti-deformation, durable for long time use.

Tightening a threaded screw into the brass nut expands the insert to secure the fixing.

The flanged end faces out and keeps the whole assembly in place.Useful accessory for sealing holes or isolating vibrations.

Used with standard metric machine screws (screws included), simple to install.

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