3/8"-16 Hex Nylon Insert Lock Nut (NM/NE) Series - Solid Brass

Marsoni

M251S

$112.86

Get it in 3 business days with 1 day shipping. Friday, May 29

3/8"-16 Hex Nylon Insert Lock Nut (NM/NE) Series - Solid BrassProduct Details : 3 8" 16 Hex Nylon Insert Lock Nut (NM NE) Series Solid Brass Product Type: Hex Nylon Insert Lock Nut Bolt Diameter Size: 3 8" Thread Count (Pitch TPI): 16 Thickness: 0. 438 to 0. 468 in Thread Type: Coarse Imperial Thread Direction: Right Hand Thread Tool to use: 9 16" Material(s): Brass Steel Grade: Solid Brass Thread Fit: Unified Standard Class 2B Insert Maximum Temperature: 250 F Standards and Certifications: NM and NE Standard

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We offer a 30-day return/exchange service after receiving.
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Initially I had installed non-genuine Lexus filter, which the seller claims it fits Lexus RX. That filter fits (kinda). After installing the air-filter and closing the lid, I could see the edge of the filter because the lid did not close tightly. I am not a mechanic, but I was concerned. Hence, I ordered the genuine Lexus filter from Lexus dealer through Amazon. I paid twice more than non-genuine filter (including extra shipping charge of $10.00). Genuine filter arrived in the FEDEX box (looks and feels pretty sturdy enough to protect the filter) only 2 days after I placed the order. I have just replaced the filter. The lid closes perfectly. Although I spent total $40, for the peace of my mind, it's the money well spent.

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Reviewed in the United States on July 20, 2022

Verified Purchase

Amazon Customer

Charlottesville, US

★★★★★ 5

Fits 2015 Lexus RX350

Perfect fit for a 2015 Lexus RX350.

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Reviewed in the United States on September 5, 2025