SS138 - 50 or 200 / 4.2 x 20mm Hex Head Tapping Screw

 

 

 

GM Front End & Air Conditioner Hex Head Sems Special Tapping Screw / Blk Phosphate

M4.2-1.41 x 20mm (#8 x 25/32")

Indented Hex Washer Head: 7mm

Outside Diameter Loose Washer: 1/2" (12mm)

Point Type: A/AB

 

OEM

GM & General Purpose

GM: #11503396, #11503483

Auveco: #12742 

Car-Pak: #80-5141