Manufacturer: ALLCLEAN. Tri-Fold Rivets can also be used for riveting large or irregularly shaped holes. The rivets durable under the water. Part Number: AL- Tri-Fold Rivets Black-25. Fit Size:This 3/16" (4rivets pop boat Tri Fold Tri Grip Aluminum Black Exploding waterproof Kayak.8MM) hole size, Length:1 " (25.4 mm), head of rivets is about 7/16", Grip range is 1/25" - 1/2" (1MM-12.5MM).
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