Threaded studs and foundation bolts for securing equipment to foundations and for flange connections. Threaded studs (DIN 975, GOST 9066-75): M8–M48, length 1–3 m. Strength classes 4.8, 5.8, 8.8, 10.9. Foundation bolts (GOST 24379.1-2012): bent (type 1), with anchor plate (type 2), composite (type 3). For securing machine tools, compressors, turbines, columns. Material: St3, 09G2S (frost-resistant down to −60°C), 40Kh (class 10.9). Coating: zinc, uncoated. Manufactured on lathe-threading machines. Kit: stud + 2 nuts + 2 washers. Foundation bolts: calculation according to SP 43.13330 (pull-out load from concrete). For dynamic equipment (compressors, generators) – bolts with damping elements. 09G2S – for arctic conditions (−60°C). Manufacturing: hot bending + threading + heat treatment (for 10.9). Lead time 1–3 weeks. Documentation: certificate, drawing, protocol.