Stainless Steel Double-Thread Bolts Factory: Custom Double End Stud Bolt Supplier
Stainless steel double-thread bolts are threaded at both ends with an unthreaded middle section, designed for connecting flanges, covers and equipment where access is limited to one side.
As a professional stainless steel double-thread bolts factory, we manufacture double end stud bolts in 304, 316L and ASTM A193 B8 grades for global industrial clients. This guide explains our production standards, material options and custom services, so you can order the right fasteners with confidence.
Why Choose Our Stainless Steel Double-Thread Bolts Factory
Choosing the right stainless steel double-thread bolts factory matters for project safety and cost control. Here is what we offer:
Full material range: 304, 316L, ASTM A193 B8 and B8M for different corrosion and temperature requirements.
Complete standards compliance: DIN, ASTM and ISO based production with inspection reports available.
Custom manufacturing: non-standard lengths, diameters and thread forms per customer drawings.
Direct factory pricing: no middlemen, competitive prices for bulk and project orders.
We have supplied double end stud bolts for pipeline, pressure vessel and mechanical equipment projects across multiple countries. Every order is inspected before shipment.
Material & Standards of Stainless Steel Double End Stud Bolts
Our stainless steel double end stud bolts are produced from high quality raw materials. The wire rods comply with ASTM A493, the standard for stainless steel wire used in cold heading and cold forging processes, which guarantees stable mechanical performance after forming and threading.
For high-pressure and high-temperature applications, we supply stud bolts conforming to ASTM A193, which covers alloy steel and stainless steel bolting materials for pressure vessels and flanges. The most common stainless grades are:
ASTM A193 B8: 304 stainless steel, suitable for general high-temperature service.
ASTM A193 B8M: 316 stainless steel, offering better resistance to chloride corrosion and marine environments.
Thread options include metric (M6 to M100+) and imperial sizes (1/4″ to 4″), with full thread or double-end thread configurations available.
Common Applications for Stainless Steel Double Thread Bolts
Stainless steel double thread bolts are widely used where secure, removable connections are required:
Flange connections in piping systems
Pressure vessels and heat exchangers
Pump and valve assemblies
Pipeline supports and structural connections
Marine and offshore equipment
Because the middle section remains unthreaded, the bolt provides accurate alignment and strong clamping force, reducing stress concentration during assembly.
Custom Options Available From Our Factory
As a custom-oriented stainless steel double-thread bolts factory, we support flexible manufacturing:
Custom lengths and diameters per your drawings or samples
Special thread lengths and pitch
Surface treatment: pickling, passivation, or as-rolled finish
Material certificates and test reports with each batch
Low MOQ for sample testing before bulk production
Simply send your drawing or specifications to our sales team, and we will confirm the most suitable production solution within 24 hours.
If you are also looking for U-type pipe fasteners, read our guide on U type pipe clamp bolt to complete your fastener sourcing.
Quality Control & Export Packaging
Every batch of stainless steel double-thread bolts is checked for dimensions, thread quality and material grade before packing.
We stainless steel double-thread bolts factory provide:
Inspection reports with material certificates
Strong export packaging with moisture-proof protection
On-time delivery for both sample and container orders
FAQ for our stainless steel double-thread bolts factory
Q: What is the difference between double-thread bolts and fully threaded stud bolts?
A: Double-thread bolts have threads only at both ends with a plain middle section, while fully threaded stud bolts (DIN 975) are threaded along the entire length. Double-end design is preferred for flange and equipment connections.
Q: Can you make stainless steel double-thread bolts in 316L?
A: Yes, we regularly produce 316L double end stud bolts for marine and chemical applications. We also offer A193 B8M upon request.
Q: What is your MOQ for custom orders?
A: Our MOQ is flexible. For standard sizes it is usually low, and we welcome sample orders for testing before bulk production.
Q: Do you provide material certificates?
A: Yes, material certificates and test reports are provided with every order.
Get Your Quotation Today
If you are sourcing a reliable stainless steel double-thread bolts factory, contact us with your size, material and quantity. We will reply with detailed specifications and a competitive factory price. Bulk orders and custom dimensions are both welcome.