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

This DIN938 double ended stud bolt is designed for threaded connections in construction, machinery, equipment assembly and general industrial fastening.

The product has threaded sections at both ends, allowing components to be secured with matching nuts, washers, brackets or threaded sleeves. The product page identifies the fastener as a DIN938 double ended stud bolt. The listed stud type is a metric bolt with b1 = 1.25d. The product has threads on both ends and uses a right‑hand thread direction.

The listed grades are 4.8, 8.8, 10.9 and 12.9 or other available grades. Buyers can select the required grade according to the load, assembly conditions and project requirements.

The surface treatment is shown as black oxide and blackening. This gives the stud bolt a dark appearance and is suitable for machinery, equipment and industrial assemblies where a black surface is required.

The product size field shows M5‑M100, while displayed thread options include metric sizes such as M10, M20, M30 and M39, as well as M6.3 and inch options including 3/8 inch, 1/2 inch, 5/8 inch and 3/4 inch. The product also supports custom sizes and lengths.

Specification Table

Surface Treatment Options

Black Oxide Finish

The black oxide finish provides a dark surface appearance and is suitable for machinery, equipment and industrial fastening assemblies. It can be used where a black component is preferred for appearance, component identification or assembly design.

Blackened Surface

The blackened surface is suitable for general industrial applications that require a dark finish. It can be used for construction hardware, machine components, support assemblies and maintenance parts.

The final surface treatment should be selected together with the material, grade, size, length and installation environment.

Application

This DIN938 double ended stud bolt can be used in a wide range of applications, including:

• Industrial machinery assembly
• Equipment mounting
• Construction fastening
• Steel structure assembly
• Flange and bracket installation
• Mechanical component connection
• Threaded sleeve installation
• Machine maintenance and repair
• Industrial support structures
• Equipment frame assembly
• General metric fastening systems
• Custom mechanical assemblies

The double ended structure is useful when a component needs to be fixed between two threaded connection points. The stud can be installed through a plate, bracket, flange or equipment part and secured with matching nuts and washers.

For machinery and construction applications, the appropriate grade should be selected according to the working load, vibration, temperature, corrosion exposure and installation method.

Matching Fasteners

For inch thread options such as 3/8 inch, 1/2 inch, 5/8 inch and 3/4 inch, matching inch‑system nuts and washers should be selected.

Flat washers can help distribute the clamping force across the connected surface. Spring washers may be used where additional resistance to loosening is required. Threaded sleeves or coupling nuts can be selected when an extended threaded connection is required.

All matching fasteners should have compatible thread size, material and strength grade.

Packing & Delivery

The product is listed with bag, carton and pallet packaging. The reference package size is 30 × 30 × 20 cm, with a reference gross weight of 25 kg.

Available packing and service options include:

• Plastic or woven bag packing
• Carton packing
• Pallet packing
• Customized packaging
• Customized logo service
• Graphic customization
• Drawing‑based production
• Sample‑based production
• OEM and ODM manufacturing
• Bulk packing for industrial orders

FAQ

Q1: What type of fastener is this?

It is a DIN938 double ended stud bolt with threads on both ends.

Q2: What materials are available?

The product page lists steel and carbon steel. The detailed material field also lists carbon steel/stainless steel options.

Q3: What grades are available?

The listed grades are 4.8, 8.8, 10.9 and 12.9, with other grades indicated as available according to requirements.

Q4: What standard does the product follow?

The product is identified as a DIN938 double ended stud bolt.

Q5: What is the thread direction?

The listed thread direction is right‑hand thread.

Q6: Does the product have threads on both ends?

Yes. The product attributes specify that both ends are threaded.

Q7: What sizes are available?

The listed size range is M5‑M100. Displayed options include M10, M20, M30, M39, M6.3 and selected inch sizes.

Q8: What lengths are available?

The displayed length options include 18 mm, 36 mm, 48 mm, 54 mm, 60 mm, 78 mm, 84 mm, 90 mm, 108 mm, 114 mm and 120 mm.

Q9: What surface treatment is available?

The product uses a black oxide and blackening surface treatment with a black appearance.

Q10: Which nuts and washers can be used?

Use matching nuts, flat washers, spring washers and threaded sleeves with the same thread size and a compatible strength grade.

Q11: Can the product be customized?

Yes. Drawing customization, sample‑based customization, logo, packaging and graphic customization are supported.

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Send us your required material, grade, thread size, length, surface treatment and order quantity.

We can provide a quotation and customization plan for DIN938 double ended stud bolts.