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Stainless Steel Bolts
Stainless steel bolts are widely specified for their corrosion resistance and strength, particularly in external and exposed environments. Common bolt types include stainless steel hex bolts, setscrews, flange bolts, cup square bolts, wing bolts and roofing bolts. We supply a comprehensive range of stainless steel bolts in standard and specialist grades, available from stock or manufactured to order.
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What grades of stainless steel bolts are available?
Most stainless steel bolts are supplied in A2 and A4 stainless steel, with tensile strength options including A2-70 and A4-70. Where tensile strength is critical, this should be specified at the time of enquiry.
Additional stainless steel grades are available for specialist requirements, including 301, 303, 309, 312, 317, 321 and 410, each offering different combinations of corrosion resistance, temperature performance and ductility.
Are specialist stainless steel alloys available?
For demanding environments, Fastenright can manufacture stainless steel bolts in high-performance alloys such as Duplex stainless steel, AL-6XN, Alloy 926 and Alloy 255 SMO, which provide enhanced resistance to stress corrosion cracking, pitting and crevice corrosion.
We also supply high tensile steel bolts in grades 8.8 to 12.9, where corrosion resistance is not the primary requirement.
What sizes of stainless steel bolts can Fastenright supply?
We supply stainless steel bolts in a wide range of metric sizes, including
- M6 stainless steel bolts
- M8 stainless steel bolts
- M10 stainless steel bolts
- M12 stainless steel bolts
- M16 stainless steel bolts
- M20 stainless steel bolts
Both A2 stainless steel bolts and A4 stainless steel bolts are available, including common specifications such as stainless steel M6 bolts, stainless steel M8 bolts, stainless steel M10 bolts and stainless steel M12 bolts, with popular options including M8 A4 stainless steel bolts.
Can non-standard stainless steel bolts be supplied?
Non-standard sizes and made-to-drawing stainless steel bolts are available to order. Fastenright can also manufacture bolts in exotic alloys, including Hastelloy fasteners and Inconel fasteners, as well as Duplex stainless steel, subject to specification and minimum order quantities.
For technical advice or to place an order, contact us to discuss your stainless steel bolt requirements.


