[SAE and Metric Sizes] 230pcs rivet nuts includes most commonly needed SAE and metric sizes in a durable transparent box, it contains 12 sizes total selected for you, includes: #8-32UNC, #10-24UNC, 1/4''-20UNC, 3/8''-16UNC, 5/16''-18UNC, M3, M4, M5, M6, M8, M10, M12

[Duarble and Practical Material]: Rivet nuts are made of 304 Stainless Steel, strong rust and corrosion resistant for a long time use, non faded, anti-oxidation, healthy and lead-free, high strength, non-deforming, load-bearing threads

[Multipurpose]: the assorted nutserts are widely used in automotive, furniture, decoration and other electrical and industrial products, suitable for a variety of occasions such as in air conditioning, fire fighting, gas or in medicine beverage food chemical industry and metal sheets factory.

[Convenient Box] These rivnuts kit is lightweight, very convenient to carry; Meanwhile, the transparent storage box is durable enough to accommodate all items safely.

[Worry-free]: VIGRUE provide lifetime service for our product quality problem, if you're unhappy with our product for any reason, please feel free to contact us, we offer 24/7 customer service.