Stud Bolt

Stud bolts, also known as double end studs, are used for secure connections between flanges, machinery parts, and structural components. They provide strong fastening performance and are widely applied in pipelines, valves, pressure vessels, machinery, and industrial assemblies.

Heavy-Duty HDG Double End Studs for Industrial Flanges

Heavy-Duty HDG Double End Studs for Industrial Flanges

HDG double end studs comply with DIN938/DIN939 and ASME B16.5, with a smooth unthreaded middle shank for flanges, valves, and pressure vessels. Centrifugal treatment removes excess zinc on dual threads; matched overtapped A194 2H nuts ensure smooth torque tightening. High-strength alloy studs adopt a baking process to avoid hydrogen embrittlement. A thick zinc coating of 50–85μm resists salt and abrasion, with moisture-proof pallet packaging for petrochemical and desalination projects.

High-Strength HDG Stud Bolts & Fully Threaded Rods (DIN 976 / ASTM A193)

High-Strength HDG Stud Bolts & Fully Threaded Rods (DIN 976 / ASTM A193)

In heavy industrial piping, suspended MEP (Mechanical, Electrical, and Plumbing) infrastructure, and chemical plant construction, standard hex bolts a...

DIN975 DIN976 Steel Double Ended Stud Bolt with Nuts, Black and Zinc Threaded Rod for Industrial Fastening

DIN975 DIN976 Steel Double Ended Stud Bolt with Nuts, Black and Zinc Threaded Rod for Industrial Fastening

This DIN975/DIN976 steel double ended stud bolt is designed for industrial fastening, threaded connections and equipment assembly. Available in grades 4.8 and 8.8 with black and zinc surface options.

Grade:4.8 , 8.8
Material:Steel
Standard:DIN975 , DIN976
Custom Size High Tensile Double Ended Stud Bolt M6-M24, Steel and Stainless Steel Threaded Fastener for Industrial Applications

Custom Size High Tensile Double Ended Stud Bolt M6-M24, Steel and Stainless Steel Threaded Fastener for Industrial Applications

Custom M6-M24 double ended stud bolts in steel or stainless steel, with zinc or plain finishes for machinery and industrial fastening.

Grade:8.8/10.9/12.9
Material:carbon steel
Standard:DIN
ASTM A193 Grade B7 Double Ended Stud Bolt M4-M36, Steel and Stainless Steel Threaded Stud for Building and Industrial Applications

ASTM A193 Grade B7 Double Ended Stud Bolt M4-M36, Steel and Stainless Steel Threaded Stud for Building and Industrial Applications

ASTM A193 Gr B7 double ended stud bolts in M4-M36, with steel and stainless steel options, multiple grades, zinc or plain finishes.

Grade:Q235 45 # 35CrMo A2-70 A4-80
Material:Stainless steel and steel
Standard:DIN GB ISO JIS BA ANSI
DIN938 Black Oxide Double Ended Stud Bolt, Carbon Steel and Stainless Steel Threaded Stud for Industrial and Construction Fastening

DIN938 Black Oxide Double Ended Stud Bolt, Carbon Steel and Stainless Steel Threaded Stud for Industrial and Construction Fastening

DIN938 double ended stud bolts with right-hand threads, black oxide finish and 4.8-12.9 grade options for industrial fastening.

Grade:4.8, 8.8, 10.9 and 12.9
Material:Steel and carbon steel; detailed field also lists carbon steel/stainless steel
Standard:DIN938