Flat Machine Thread Drilling Screw
CM008-150812-1
Process: Using multi blow header to make the head and then threading before passivation. Plating and acid washing after heat treating. The last step being beeswaxing
All the items are inspected during the process and before shipping, complying with ISO Working Instruction
Inspection Tools: Calipers, Protrusion-height gage, Micrometer, 2.5D and 2D projector
Measurement Points: Head diameter, Head height, Square depth, Square plug gauge, Total length, Major diameter, Minor diameter, Thread angle, Pitch, Drilling tail diameter, Drilling tail length, Plating inspection
Plating Reports Offered
Features
- 410SS
- Flat Head
- #1 Square
- Black Zinc Plated, 3u+ Beeswaxing
Specification
- Item Specification: M4*20
- Item Material: 410SS