3″ Thompson Contender Pistol Grip Bolt (Black Oxide) with Flat and Lock Washers. These bolts are new production replacements for the Thompson Center Arms OEM part. This bolt usually fits the Pachmayr Rubber Grip. It may fit other grips as well.
Depending on which grip you have determines which bolt you will need. If you want to send me a picture of your grip, I can try and determine which bolt you will need. 

This set contains:

• 1 -3″ Socket head cap screw
• 1 – Stainless steel flat washer
• 1 – Black oxide lock washer
• 1 – Black thin profile lock washer

The goal is to get your grip secured onto your TC and you are happy with the fitment. I have a few of these on hand so if you need more than one set just let me know. I also have these in Stainless Steel.