Wing-Nut® Wire Connectors, Model 452® Red, Bag of 500
https://www.arkco.ca/shop/30-652-wing-nut-r-wire-connectors-model-452-r-red-bag-of-500-88608
https://www.arkco.ca/web/image/product.template/88608/image_1920?unique=e6c9e9a
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Red twist-on connector for 18 to 8 AWG wires, with wide-range spring and contoured wings for easy, secure installs. 500 per bag.
