Stainless Steel Machine Screws

What types of stainless steel screws are available?

Our range of stainless steel machine screws includes a wide selection of head styles, including:

• Button head
• Pan head
• Countersunk and raised countersunk
• Cheese head

Popular options include stainless steel countersunk screws, alongside many other specialist head types.

The choice of head style depends on assembly and installation requirements, including fastening access and finished appearance.

What drive types are available?

Stainless steel machine screws are available with a variety of drive styles, including:

• Slotted
• Phillips
• Pozi
• Socket
• Torx

This range of drive types supports a wide variety of assembly and installation requirements.

Different drive styles may be selected depending on tooling preferences and application requirements.

What grades of stainless steel screws are supplied?

The majority of our stainless steel machine screws are supplied as A2 stainless steel screws and A4 stainless steel screws. Additional grades including A5 stainless steel and A8 (1.4529) HCR stainless steel can also be supplied for applications requiring enhanced corrosion resistance.

These grades offer differing levels of corrosion resistance, allowing the screw specification to be matched to the installation environment.

• A2 stainless steel screws – Commonly used for general corrosion-resistant applications
• A4 stainless steel screws – Commonly specified for marine and coastal environments
• A5 stainless steel screws – Available for specialist applications requiring enhanced corrosion resistance
• A8 (1.4529) HCR stainless steel screws – Available for highly corrosive environments where maximum corrosion resistance is required

The choice between A2, A4, A5, and A8 depends on environmental exposure and corrosion resistance requirements.

What sizes of stainless steel machine screws can Fastenright supply?

We supply stainless steel screws in a wide range of metric sizes, including:

• M4 stainless steel screws
• M5 stainless steel screws
• M6 stainless steel screws

Both pan head and countersunk configurations are available, including specifications such as A4 stainless steel pan head screws.

Selecting the correct size, head style, and material grade helps ensure suitability for the intended application.

Can non-standard stainless steel machine screws be supplied?

Alongside standard products, non-standard and made-to-drawing stainless steel machine screws are available to order.

We can also manufacture screws in exotic alloys including:

• Duplex
• Super Duplex
• Inconel

Manufacture is subject to specification and minimum order quantities.

Fastenright supplies both standard and specialist stainless steel machine screws to support bulk trade, engineering, and project-based requirements.

For bulk buy trade stainless steel screws, technical advice, or to discuss a non-standard requirement, contact us to discuss your application.