38mm diameter, 6mm deep, M4 (4mm hole), Rubber Washers

• Made from TPV thermoplastic rubber - shore A 85 (Medium to Hard rubber)
  
• M4 hole (4.2mm)
• Diameter - 38mm
• Depth - 6mm
• Excellent temperature resistance, continuous upper temp 135 deg C
• Good sealing performance and resistance to extreme temperatures, chemical exposure and harsh environments
• Manufactured by ourselves in the UK

Colour: Black

(All sizes quoted are +/- 0.15mm)