Heavy-duty fasteners
Fasteners with special properties are used to assemble sections of ESP units (to joint and secure individual pump sections, including ESM section). Such fasteners are called heavy-duty ones, i. e., they allow long-term operation at alternate loads, under aggressive medium conditions.
We produce heavy-duty fasteners
Endurance limit
300 thous. cycles and more,
according to the IMASh-059.01 method
according to the IMASh-059.01 method
Strength grade
10 (nuts)
10.9 (bolts, screws, studs)
10.9 (bolts, screws, studs)
Fastener types
- hex head bolts М8-М16
- hex head and button head socket screws М8-М16
- studs М8-М16, including combined with fine thread
- fasteners with inch thread 5/16"-24UNF, 3/8"-24UNF, 7/16"-20UNF
Fastener material
- steel 30KhGSA
- steel 03Kh14N7V, 05Kh16N4D2B
- Alloy K-500
Heavy-duty fasteners are an integral part of borehole equipment
Heavy-Duty Fastener Production Workshop
Quality and durability — the key to the success of our products
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