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Brass Cheese Head And Pan Head Screws Metric

Pan and cheese head screws are the usual surface mounted machine screw options, and feature lower and more rounded head shapes in comparison to socket head cap screws. They also have wider diameter heads, which grip and protect the surface better. Pan heads will typically have lower and wider profiles compared to cheese heads. Cheese heads are generally stronger and allow a slightly deeper drive socket.
Fastener Material Key
A1
A1 Stainless Steel- Also known as grade 303. A general purpose grade of stainless steel but with better fabrication/machining properties than grade 304.
A2
A2 Stainless Steel - Also known as grade 304 or 18/8. A general purpose grade of stainless steel.
A4
A4 Stainless Steel - Also known as grade 316 or 18/8/3. A higher corrosion resistant, marine grade of stainless steel.
Brass
Brass - Offers an attractive, corrosion resistant finish.
BZP
Bright Zinc Plated (BZP) Steel - Non-stainless standard steel grade offering a basic level of corrosion resistance.
BZP-8.8
Bright Zinc Plated (BZP) Class 8 High Tensile Steel - The general purpose high tensile grade for screws and bolts, with a basic level of corrosion resistance.
Nylon
Plastic (Nylon Polyamide) - A tough lightweight plastic, strong at low temperatures, with excellent resistance to chemicals, and features favourable sliding friction behaviour.

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