Fasteners for Refrigeration Equipment

Refrigeration equipment is a common industrial field with diversified standard fastener plans.

It has rich demand for self tapping screws, nuts, lock washers and other types, mostly carbon steel materials and requires surface treatment of zinc plated or stainless steel A2 material with passivated basic treatment.

Commonly used fasteners: DIN933, DIN7504K N P M, DIN7981, DIN7985, DIN965, DIN968, DIN934, DIN7337, DIN125, DIN9021, DIN127, DIN985, DIN1587, DIN315

Choosing carbon steel or stainless steel fasteners?

Surface finishing for carbon steel fasteners – zinc plated, black phosophated, dacromet

Surface finishing for stainless steel fasteners – pickling and passivation