uxcell Knurled Thumb Nuts - M6 Round Knobs with 304 Stainless Steel - 4 Pcs
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Unfortunately, 1/2 inch thread specifications are not available for purchase on these products. Thanks.
Selected User Reviews For uxcell Knurled Thumb Nuts - M6 Round Knobs with 304 Stainless Steel - 4 Pcs
One of the black plastic knobs that held my Cycliq bike camera to the handlebars was missing. It turns out that the u-turn wasn't actually a u-turn. Because the bolt that holds it to the bike is metric, it was difficult to find a replacement. To the u-bolt, I'm going to add a star washer. To ensure that these do not loosen while riding, secure them with a bolt.
The tapped holes in the knurled knobs did not line up with the face at 90 degrees. As a result, when threaded onto a bolt, the knob wobbled badly, rendering it useless. Quality assurance is lacking.
Thread inserts on plastic knobs had pulled out on several items, so they were replaced.