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The Hillman Group 3327 ¼-20 x 3/4-Inch Expansion Nut, 10-Pack , Black

Product ID: B00I2VTETC Condition: New

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Product Description

The Hillman Group 3327 ¼-20 x 3/4-Inch Expansion Nut, 10-Pack , Black

Used to seal bolt holes to prevent leaking
Can be used in blind & closed-end holes
Included variants range from #6-32 to 3/8"-16 in fine & coarse thread sizes
Made of high-strength rubber & steel parts
Corrosion resistance

An expansion or well nut consists of a flanged neoprene bushing with a threaded nut embedded in the non flanged end. It is used in blind bolt holes to fasten a piece and seal the bolt hole. The nut is inserted into the hole flange side up, as the bolt is screwed into the nut the rubber on the other side of the hole expands and seals the bolt hole.