Bolts according to GOST, OST, ASME are made from M20 and above from calibrated and hot-rolled products. We also produce chiseled non-standard bolts according to the customer’s drawings. Bolts are made of various grades of steel: carbon, structural, alloy, stainless grades.

Bolts are manufactured according to GOST OST ASME, namely:

• GOST 3033-79; GOST 24379-80; GOST 10602-94 and so on.
• OST 26-2037-96, etc.,
• non-standard bolts according to Customer drawings.

Various grades of steels are used in the production. Such as: 35, 40X, 09G2S, 12X18N10T, 14X17N, 30XMA, 20KHN3A, 25X1MF, 4X12N14V2M, etc. IMPORT SUBSTITUTION of FASTENERS for flange connections according to ASME, ASTM standards. We have established the production of fasteners with metric and inch threads. We are also ready to consider your applications, according to drawings and sketches.

Bolts according to GOST, OST, ASME are used to fix detachable structures, which in turn are used in the oil and gas industry, in mechanical engineering, in the chemical industry, in construction and in the food industry.

In the SILENA company, in addition to bolts, you can order studs and nuts from various grades of steel.

For information on the cost and other issues, please contact our specialists -7(812)313-79-89 or sale@zsd-silena.ru