Product Description
Thread - UNF (AF)Imperial Fine).Grade - Grade 5 (8.8) High tensile steel.
Material - Zinc plated steel
Sizes listed - 1/4"- 28tpi, 5/16"- 24tpi, 3/8"-24tpi. 7/16"-20tpi & 1/2"-20tpi.
Type - Phillidas all metal INDUSTRIAL / self locking nuts.