DIN939 Double End Threaded Stud Bolt

DIN939 Double End Threaded Stud Bolt is a standard fastener with threaded ends and plain shank, widely adopted in mechanical assembly, flange connection, pipeline and heavy equipment fastening. Our DIN939 Double End Threaded Stud Bolt are produced strictly following DIN939 specification, with stable thread tolerance and consistent mechanical performance.

We provide multiple material options including carbon steel and stainless steel. Surface treatments cover zinc plating, black oxide and passivation to satisfy different anti-corrosion demands. Various strength grades and complete size ranges are ready for your project sourcing.

Product Specification

Production & Quality Control

All our DIN939 Double End Threaded Stud Bolt adopts mature thread rolling process. Before mass production, raw material will be inspected for chemical composition and mechanical property. Semi-finished studs go through heat treatment for high-strength grades to reach required tensile strength. Final inspection includes thread check, dimension measurement and surface appearance screening, to reject burr, crack and thread damage. Every batch of DIN939 Double End Threaded Stud Bolt can support material test report upon request.

Features

- Manufactured to DIN939 standard, interchangeable for replacement

- Double threaded ends for installing nuts on both sides

- Middle smooth shank improves shear resistance under heavy load

- Clean thread, no burr, easy nut matching and assembly

- Flexible surface treatment for indoor, outdoor and slightly corrosive environment

Typical Matching Parts

This DIN939 Double End Threaded Stud Bolt is usually matched with metric hex nuts, flat washers and spring lock washers to form a complete fastening assembly. For flange connection, high tensile nuts that match the grade of the stud bolt are strongly recommended to keep consistent load capacity and prevent loosening under vibration or pressure changes. Stainless steel DIN939 Double End Threaded Stud Bolt are suggested to pair with stainless steel accessories of the same material to avoid galvanic corrosion caused by contact between dissimilar metals, which can extend the whole service life of the connection.

Standard Comparison (Frequently Confused Items)

Application

Our DIN939 Double End Threaded Stud Bolt fits flanges, valves, pumps, pressure vessels, steel structures and general equipment maintenance. Manufactured in accordance with DIN 939 standard, it maintains steady preload even under cyclic load and varying working temperatures. It is a durable fastener for long-term stable fastening, an ideal choice for industrial piping, machinery assembly and on-site overhaul works.

Packaging & Shipment

Standard export packing: small quantity of DIN939 Double End Threaded Stud Bolt packed in plastic bags, then put into export cartons. Cartons will be stacked and fixed on wooden pallets to prevent collision during sea or land transport. We can mark label with item code, size, grade and quantity outside cartons as your requirement. We support mixed loading for multiple fastener items including DIN939 Double End Threaded Stud Bolt in one shipment.

FAQ

1. What is the difference between DIN939 Double End Threaded Stud Bolt and all threaded rod?

DIN939 Double End Threaded Stud Bolt has a plain shank in the middle, while threaded rod is fully threaded and usually sold in long bars for cutting.

2. Can you offer custom length for DIN939 Double End Threaded Stud Bolt?

Yes, we support non-standard length production of DIN939 Double End Threaded Stud Bolt based on your drawing.

3. What certificates can you provide for DIN939 Double End Threaded Stud Bolt?

Material test certificate is available upon request.

4. What is your packing way for DIN939 Double End Threaded Stud Bolt?

Standard export packing: carton + pallet.