A collection of expansion/well nuts from The Hillman Group. Expansion nuts, also known as well nuts, feature a flanged neoprene bushing that houses a threaded nut within the non-flanged end. When the bolt is inserted into the nut, the rubber on the opposite side of the opening expands and seals the bolt hole. The variations included in this collection range from #6-32 to 3/8″-16 in both fine and coarse thread dimensions. The complete assortment includes twelve (12) refills consisting of Hillman item numbers #3319 – #3330.
Used to seal bolt holes to prevent leakage
Can be utilized in blind & closed-end holes
Included variations span from #6-32 to 3/8″-16 in both fine and coarse thread dimensions
Crafted from high-strength rubber & metal components
Resistant to corrosion
Customer feedback
Clients consider these expansion nuts to be of excellent quality, functioning effectively and providing great value. Installation is simple, with one reviewer mentioning their assistance in front lip installation, while another remarked on their perfect fit. Customers value their sturdiness, with one emphasizing their reliable mounting capabilities.
