Protection Force Stopper Plug for 5/16″ 7-8 mm Hole (Pack of 50) Tube Bottle Openning 5/16-24 UNF M8 M9 Thread Nut Paint Masking Reusable Silicone Rubber

What You Get: 50 pcs in one zipper bag

best to fit ID 9/32″ To 5/16″ 7.0-8.0mm hole

plug big OD 0.375″ 9.5mm small OD 0.250″ 6.4mm length 1″ 25.4mm

Silicone Rubber for high temp to 400 F/200 C. Can Be reused many times for Powder and E.D. Coating, Painting, Cerakote, Anodizing, Plating, Media Blasting, Sealing ,Custom surface treatment and protection Supplies. No color and smell contamination .No Dissolved matter

Material support for boiling Steam UV light alcohol immersion Autoclave Sterilization process for safe, clean and Reusable applications