S - Clamps Stainless steel 316 A4

stainless steel 316 clampsISO 9001:2015 certified clamps

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Autolok Nuts Stainless steel 316 A4

Single and double slotted nuts

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Stainless steel 316L gas springs

stainless steel gas springs

High corrosion resistant gas spring

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Stainless steel 316L Handles

Stainless steel 316L Handles

Seawater Resistant Handles

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Stainless steel 316 DIN 912 bolts

Stainless steel 316 DIN 912 bolts

with 900 N/mm² tension load

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Lido Key Locks Part Numbers

Lido Key Locks

Alternatives to stainless steel 316 locks

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316 stainless steel

Class A4 USA Grade 316 F593

Grade A4 is also an Austenitic grade of 316 stainless steel, it has a higher corrosion resistance than A2 grade 316 stainless steel and this in many chemical environments. 

Class A4 USA Grade 316 F593 is highly advised to be used where installations are undergoing extreme operating conditions, including contact with dilute sulphuric acid, and acetic acid over a wide range of temperature and concentration.

316L stainless steel is Resistance to atmospheric staining and pitting in industrial and urban areas, and also is suitable for marine conditions but not immersed in sea water.

The Class A4 USA Grade 316 F593 oxidation resistance is satisfactory for use up to 800ºC (1.472 °F).

Resistance to nitric acid and other oxidising chemicals is excellent.

Resistance to other mineral and organic acids is good within certain limits of temperature and concentration.

Generally unsuitable for solutions of hydrochloric acid and chlorides, particularly if evaporation at high temperatures occurs. Satisfactory oxidation resistance up to 800ºC (1.472 °F).

Class A4 USA Grade 316 F593 has a significant stress relaxation above 600ºC. (1112 °F)


Fasteners for boat deck fittings, chemical plant, swimming pools, dye vats, fertiliser, rayon and sewage treatment plants. Dairy equipment. Medical sterilising equipment. 

Read why you should change to 316 stainless steel >


Fasteners for boat deck fittings

Class A4 USA Grade 316 F593 for Marine & Coastal Environment:

  • Fish Farms
  • Oil Rigs
  • Offshore windmills
  • Boats
  • Coastal Environments

Fasteners for boat deck fittings stainless steel A4 316

deck fittings Class A4 USA Grade 316


Fasteners for swimming pools

Companies producing service panels for filtering, tubing and engines, exposed to chlorine in  water and environment, make use of 316 stainless steel A4 grade steel.

316l stainless steel pool


Fasteners for trafic tunnel panels. 

316 stainless steel is a highly requested material in tunnels.

316l stainless steel trafic tunnels


Semiconductor Industry

The semiconductor Industry producing wafers uses a lot of  aggressive chemical products, turning them into a very corrosive environment.

Food Industry

Companies producing equipment for the food industry use lot’s of chemicals to clean their production line.

316l stainless steel