Customer selection reference

Product Description: Straight flower thimble screw, knurled clamping screw, presser foot fixing screw

Reference standard: according to customer requirements

Material: iron, stainless steel, copper, aluminum, titanium alloy, phosphor bronze, zinc alloy, etc.

Plating color: color zinc, white zinc, blue and white zinc, blue zinc, black nickel, white nickel, chromium, dacromet, electrophoresis, etc., in line with ROHS requirements

Product grade: 4.8, 6.8, 8.8, 10.9, 12.9

Heat treatment: quenching and tempering treatment, carburizing treatment

Corrosion resistance: 8H, 12H, 24H, 48H, 72H, 96H, 120H, 360H

Remarks: The above can be selected according to the customer's own needs.