Head Type:

01. Doble Countersunk head

02. Bugle Head

Drive (recess) type:

01. Philips

02. Spine Socket

03. Hexagon Socket

04. Star Drive

05. Square

Thread Type:

01. Coarse thread

02. Fine Thread

Point Type:  Sharp point

Surface Treatment

Phosphate, Zinc, Yellow Zinc, 500hrs, 1000hrs, 1500hrs, Mechanical Galanized Painted Head