How does bulk pricing work?

Bulk discounts apply automatically in the cart, per item: 50+ pieces save 10%, 500+ save 20%, 1,000+ save 30%, 2,500+ save 40% and 5,000+ save 50%. Each product page shows the price at every tier.

How fast do orders ship?

Orders usually ship within 24 hours of being placed, by UPS or FedEx with a tracking number, from our warehouse in Elgin, South Carolina.

Can I return parts I don't need?

Yes, within 30 days of delivery. Email us for an RMA number first; items must be in the condition received, with all parts and the original packaging. Refunds may carry a 15% restocking fee (exchanges do not), and the buyer pays return shipping unless the problem is our fault.

3/8" Inside Diameter (ID) Rubber Grommets

(11 products)

11 sizesfrom $0.18ships from Elgin, SCbulk pricing from 50+

Every grommet on this page has a 3/8" inside diameter (ID), the clear opening left for whatever passes through it. A 3/8" opening fits a single lamp or speaker cord, a 1/4" tube, or a sensor lead. The 11 styles here fit panel holes of 1/2", 9/16", 5/8", 3/4" or 1", with groove widths of 1/16", 1/8", 3/16", 1/4" and 3/8", so you can match both the hole you drilled and the thickness of the material.

How to size a 3/8" ID grommet. Start with the item going through: measure its outside diameter, or the widest point of any plug or fitting that has to pass, and make sure it clears 3/8". Next, measure the hole with calipers; the grommet should be listed as fitting that exact hole size, because the groove has to sit tight against the edge. Last, measure the panel thickness and choose a groove width equal to it or slightly wider. If the panel is thicker than the widest groove listed, drill to a larger hole size instead and step up in ID. Searching by hole size rather than opening? Use the "fits holes" link below.

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3/8" Inside Diameter (ID) Rubber Grommets

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3/8" Inside Diameter (ID) Rubber Grommets: questions

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