Stainless steel is a type of steel alloy with a minimum of 10.5% chromium content by mass, which gives it the ability to resist corrosion and staining. The following are the explanations for the various stainless steel fasteners according to the DIN/ISO standards:

  1. Stainless steel DIN 912 / ISO 4762: These are stainless steel hexagon socket head cap screws with a diameter range of M1.6 to M64. They are designed to be installed using a hexagon wrench or an Allen key. These screws are commonly used in applications where a high strength and a low profile head are required.

  2. Stainless steel DIN 933 / ISO 4017: These are stainless steel hexagon head bolts with a diameter range of M1.6 to M64. They are typically installed using a wrench or spanner. These bolts are commonly used in applications where high tensile strength and a larger bearing surface area are required.

  3. Stainless steel DIN 931 / ISO 4014: These are stainless steel partially threaded hexagon head bolts with a diameter range of M1.6 to M64. They are typically installed using a wrench or spanner. These bolts are commonly used in applications where a partially threaded bolt is required to allow for a precise fit.

  4. Stainless steel DIN 934 / ISO 4032: These are stainless steel hexagon nuts with a diameter range of M1.6 to M64. They are used in conjunction with bolts or screws to provide a secure fastening. They are typically installed using a wrench or spanner.

  5. Stainless steel DIN 125 A: These are stainless steel flat washers with a diameter range of M1.6 to M64. They are used to distribute the load of a bolt or screw over a larger surface area, to prevent damage to the material being fastened. They are typically installed between the nut or head of the bolt and the material being fastened.

  6. Stainless steel DIN 127 B: These are stainless steel spring washers with a diameter range of M1.6 to M64. They are used to provide a pre-load to a bolt or screw, to prevent it from coming loose due to vibration or other forces. They are typically installed between the nut or head of the bolt and the material being fastened.

  7. Stainless steel DIN 7980: These are stainless steel spring lock washers with a diameter range of M1.6 to M64. They are similar to DIN 127 B but are designed to have a greater locking effect. They are typically installed between the nut or head of the bolt and the material being fastened.

  8. Stainless steel DIN 975: These are stainless steel threaded rods with a diameter range of M1.6 to M52. They are commonly used as a fastening element where a long bolt is required, or where the length of the fastener needs to be adjusted. They can be cut to the desired length and then used in conjunction with nuts and washers.