Stud bolts and threaded rods
Based in Turin since 1969, we supply stud bolts and threaded rods for flanges, plants and structures, made by outsourced production partners: fully threaded stud bolts, double-end studs threaded at both ends, foundation bolts and threaded bars, with matching nuts. We keep the most requested grades in stock in plain finish, or produce them to your drawing up to 6″ (150 mm) in diameter.
From the threaded bar to the foundation bolt
- Fully threaded stud bolts and threaded bars
- Studs threaded at both ends (double-end studs) to ASME B18.31.2, also with reduced shank (ref. DIN 2510)
- Foundation bolts, with plate and welded nuts
- Components to the customer's drawing and specification
For high-performance industrial and structural applications: flanges, plants, steelwork and foundations.
Ready from stock or made to size
Up to Ø 6″ (150 mm)
Production to drawing up to Ø 6″ (150 mm), with raw material available up to Ø 4″ (100 mm).
Bars from M6 to M64
Threaded bars in 1-metre lengths, from M6 – 1/4″ to M64 – 2″1/2, ready for delivery; 2-metre, 3-metre or custom lengths on request.
Plain, in stock
Plain stud bolts in the most requested grades: B7, L7, B7M, L7M, B16, B8 cl. 2, B8M cl. 2. Availability to be confirmed case by case.
From carbon steel to exotic alloys
The grade is chosen according to temperature, pressure and environment: from carbon steels for structural steelwork to ASTM grades for high and low temperatures, up to duplex, super duplex and nickel alloys. On request, we supply materials compliant with the PED Directive (EN 10269).
| Family | Standards and grades |
|---|---|
| Carbon steel | ISO 898-1 property classes 4.8, 6.8, 8.8, 10.9, 12.9 |
| High and low temperature | ASTM A193 B7, B7M, B16 · ASTM A320 L7, L7M, L43 |
| Stainless steels | ASTM A193 / A320 B8, B8M cl. 1 and 2, B8A, B8MA, B8R, B8RA · AISI 304/304L, 316/316L |
| High strength | 25CrMo4, 42CrMo4, 21CrMoV5-7, ASTM A453 Gr. 660 |
| Duplex and exotic alloys | Duplex, super duplex, Hastelloy®, Inconel®, Monel®, titanium |
| PED | Materials compliant with EN 10269 |
Against corrosion, galling and wear
On request, stud bolts are supplied already coated: the thread is prepared to allow for the coating thickness, and the parts are handled with care so that the surface arrives intact.
- Zinc electroplating
- Zinc-nickel
- Silver plating
- Hot-dip galvanizing (HDG)
- Phosphating
- Xylan® PTFE coating
Do you produce threaded stud bolts in property classes 8.8 and 10.9, including zinc-plated ones?
Yes: threaded stud bolts in ISO 898-1 property classes 4.8, 6.8, 8.8, 10.9 and 12.9, plain or coated on request (zinc electroplating, zinc-nickel, hot-dip galvanizing), made to drawing up to 6″.
Which stud bolts do you have in stock?
Plain stud bolts in grades B7, L7, B7M, L7M, B16, B8 class 2 and B8M class 2, and threaded bars in 1-metre lengths from M6 (1/4″) to M64 (2″1/2). Availability to be confirmed case by case.
What is the maximum diameter for stud bolts made to drawing?
We produce them up to Ø 6″ (150 mm), with raw material available up to Ø 4″ (100 mm).
Do you supply stud bolts for pressure equipment?
Yes, on request, in materials compliant with the PED Directive (EN 10269). Our quality system is certified to ISO 9001:2015, extended to the PED Directive.
What is the difference between fully and partially threaded stud bolts?
Fully threaded stud bolts are threaded along their entire length; partially threaded ones, or double-end studs, are threaded only at the ends (ASME B18.31.2) and are also available with reduced shank (ref. DIN 2510). We produce both.
Where can I find your stud bolts in Turin?
We are at Strada del Francese 93, 10156 Turin, where we have a 2,500 m² warehouse with around 40,000 items ready for urgent orders. Telephone +39 011 47 03 103.