5/16″-18 Insert, Brass Knurled (5 pack) – Made in USA


Item may be combined with other styles! See Below!
1-4 5-9 10+
$6.99 $6.49 $5.99


5/16″-18 Knurled Brass Inserts

Meant for the use with our Aftermarket Mandrels (AMM) and their specific turning projects with a 5/16″-18 thread.

These are made from brass for excellent rust protection.
Price is for a package of 5 inserts.
These are a true 1/2″ diameter, not oversized.
We HIGHLY recommend these for Spectraply.
Dimensions, 1/2″ diameter x 5/8″ long with a 5/16″-18 thread.
Made by us! Here in Honesdale, PA.

**Warning: These are not for our Bottle Stoppers, Bottle Opener or Honey Dippers. You can find those inserts here: 3/8-16 Brass Knurled Inserts**


How to use:

  1. Drill a 1/2″ diameter hole deeper then the length of the insert.
  2. Add 2-ton epoxy or like around the hole and insert.
  3. While pushing the insert in, twist back and forth to help spread the glue.
  4. Push just past the flush point, so your wood will touch the stopper and not the insert.
  5. Lay the blank on its side and let dry.


Simple Shipping:

See ourĀ flat rate pricing and current free shipping offer on our Shipping page.

  • Flat rate for the United States.
  • Flat rate to Canada for up to 30 stoppers.
  • For international shipments, please Contact us.

Phone: (570) 253-0112 or Email: sales@stainlessbottlestoppers.com


WARNING: This product can expose you to elements including lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.govWARNING: Cancer and Reproductive Harm. www.P65Warnings.ca.gov