(10) STEEL 3/8"-16 HAT NUTS / FLANGED NUTS T-NUTS / TEE NUTS / CAP NUTS / SERRATED NUTS New old stock (NOS). 3/8"-16 TPI Flange Nuts / Hat Nuts / Cap Nuts / T-Nuts / Tee Nuts / Serrated Nuts - goes by many names. These steel flanged nuts are really great for multiple uses.
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