DIN34817 Carbon Steel Weld Stud with 3 Formed Projections Under the Head

DIN34817 Carbon Steel Weld Stud with 3 Formed Projections Under the Head

This Projection Weld Screw features three precision-welded projections located underneath the head. This design allows for flush mounting of the weld screw onto its designated surface. The three projections are of equal height, diameter, and mass to facilitate a properly balanced and positioned weld. This weld screw is designed for through-hole applications, is self-locating, and eliminates the need for additional fixturing. These industrial fasteners are available from Juxin Fasteners in a variety of materials, dimensions, and thread sizes (inch and metric).

Material: Carbon steel, Stainless steel.Brass 

Advantages of self-guiding welded bolts:

(1) It can solve the problem of thread cross-threading. Significant cost savings by avoiding downtime, rework, and scrap costs associated with cross-threading.

(2) The built-in guide can automatically correct the installation deviation angle, which greatly improves the installation efficiency.

(3) Insensitive to assembly speed.

(4) Lighter and more versatile than other specialty fasteners.

DIN34817 Weld Stud with 3 Formed Projections Under the Head:

Materials: C1010 High-Welding Quality, Low Carbon Steel (plain finish unless otherwise specified)

18-8 Stainless Steel (passivated finish)

Threads(Inch): Unified Standard Class 2A ASME B 1.1-2003

Metric: ASME B 1.13M-2005

Available thread sizes

Inch Metric

#6-32 M3.5 x 0.6*

#8-32 M4 x 0.7

#10-24 M5 x 0.8

#10-32 M6 x 1.0

1/4-20 M8 x 1.25

1/4-28* M10 x 1.5

5/16-18 M12 x 1.75*

5/16-24

3/8-16

3/8-24*

1/2-13

Not available in Stainless Steel

Note: A variety of dimensional characteristics are also available (lengths, diameters, etc.)

1. The working principle of projection welding:

Projection welding is an evolution of spot welding. Generally speaking, a mountain point is punched out on one of the two plates and then welded. Due to the high current density, it overcomes the defect of nugget offset during spot welding. One or more nuggets form at the joint.

2. Features of the projection welding process:

During projection welding, the electrode must drop rapidly as the bump is sub-collapsed; otherwise, spatter will occur due to pressure loss. Therefore, a projection welding machine with good electrode followability should be used.

The electrode pressure should ensure that the bumps are fully sub-collapsed at the welding temperature, so the workpieces can fit closely. If the pressure is too high, the bumps will be crushed prematurely, and the function of projection welding will be lost.

The reduced flow density will reduce joint strength, and the pressure will be too low to cause heavy splashing.

Usually, the welding time for projection welding is longer than that for spot welding, and the flow is lower. Multi-point projection welding has a slightly longer welding time than single-point projection welding to reduce the heating differences at each point caused by inconsistent bump heights.

The current required for each spot of projection welding is lower than that for spot welding at the same spot, but it must be sufficient to melt the bump before it is completely crushed. The welding current is approximately the current required for each bump multiplied by the number of bumps.

Application notes

This projection weld screw is self-locating and provides a flush surface for easy attachment of mated components. Three symmetrical weld projections beneath the head provide a robust, properly positioned, well-balanced weld. No special tooling or fixturing is required.

For applications that require a flush-mounted, through-hole, weld screw that can be easily coupled with a mated component, this projection weld screw will get the job done. Its sturdy design ensures that the resulting welds will be strong, balanced, and durable.

Juxin Fasteners has 20 years of experience in the industrial fastener business. We offer a full suite of industrial fastener products and stay up to date on industry trends and developments.

We offer our customers.

Competitive pricing

Fast and reliable delivery performance

Expert consultation

Friendly customer service

Size Can also be According to the Customer's requirement for manufacturing, please check the detailed specification sheet details PDF, CAD, 145-146 Page See more product details.

Packaging: The inner packaging is a plastic bag, and the outer packaging is a carton. Then the tray. Carton size: 29*19*19.5CM and 23.5*17.5*8, CM and pallet size: 215*100*90CM, or as your request

Packaging Standard

At Juxin Fasteners, we apply standardized export packaging to ensure product protection, traceability, and compliance with international logistics requirements.

1. Standard Export Packaging

Unless otherwise specified, all products will be packed according to our factory standard export packaging, which includes:

Moisture-resistant inner protection

Poly bag or small box packing as required

Reinforced export cartons

Clear labeling with part number, specification, batch number, and quantity

Palletizing for sea or air shipment when necessary

Our standard packaging is designed to ensure safe transportation, efficient warehousing, and long-distance international shipping.

2. Customized Packaging Options

We also provide customized packaging solutions according to customer requirements, including but not limited to:

Private labeling

Customized barcodes

Specific carton dimensions

Retail packaging

Special pallet configuration

Customer-specific marking and identification

So that you know, customized packaging may involve additional costs and extended lead time depending on the complexity of the requirements.

3. Compliance & Quality Assurance

All packaging processes are controlled under our ISO 9001 quality management system to ensure consistency, traceability, and product integrity throughout the supply chain.