


Items 160583, 160584 and 160585: Siegmund Connecting Bolt with collar, burnished, double to quadruple, for System 16. Siegmund designed it as a fixed long-term connection between large elements such as tables, U-squares and aluminum profiles; it is also suitable for elongated holes. BTH Sales is the exclusive Canadian importer of Siegmund.
Specifications
| Siegmund article | 160583 (siegmund.com) | 160584 (siegmund.com) | 160585 (siegmund.com) |
|---|---|---|---|
| Description | Connecting Bolt with collar double burnished | Connecting Bolt with collar triple burnished | Connecting Bolt with collar quadruple burnished |
| System | Siegmund System 16 (Ø16 mm bores, 50 mm grid) | ||
| Length | 39 mm (1.54 in) | 51 mm (2.01 in) | 63 mm (2.48 in) |
| Weight | 0.07 kg (0.15 lb) | 0.09 kg (0.20 lb) | 0.11 kg (0.24 lb) |
| Components clamped | 2 | 3 | 4 |
| Tightening torque, steel | 14.40 Nm | ||
| Tightening torque, aluminum | 12 Nm | ||
| Finish | Burnished | ||
| Tool sizes | 6 mm hex bit (head), 4 mm hex bit (special flat screw) | ||
| Elongated holes | Suitable (Siegmund) | ||
| GTIN | 4251805907070 | 4251805907087 | 4251805907094 |
Compatibility
- Fits: Siegmund System 16 welding tables and tooling with Ø16 mm bores on a 50 mm grid. Siegmund System 16 accessories also fit other 16 mm system welding tables with Ø16 mm bores on a 50 mm grid. Compatible tables from other manufacturers are often made from different materials and to different standards, so quality varies by manufacturer, compared with Siegmund's X8.7 tool steel.
- Siegmund System 16: fits every System 16 Siegmund table, including the Professional Extreme 8.7 and 8.7 PLUS tables listed on bthsales.ca; Siegmund made it for a fixed long-term connection between tables, U-squares and aluminum profiles, and it is "also suitable for use in elongated holes".
- Not compatible: System 28 (Ø28 mm) tables; Siegmund builds each system around one bore size.
- Works with: other Siegmund System 16 clamps, bolts, stops, squares and U-squares on the same table.
- Care & grounding: anti-spatter spray, CleanBasic cleaner, Ground Connection Comfort (S16/S28).
What's included
Choose one option; each option is one piece:
- 1 x Siegmund Connecting Bolt with collar double burnished (160583)
- 1 x Siegmund Connecting Bolt with collar triple burnished (160584)
- 1 x Siegmund Connecting Bolt with collar quadruple burnished (160585)
Engineering support & demos
Engineering support comes with your purchase: fixture design, layout drawings, CAD and 3D models, site visits and cobot cell planning, handled by Travis Hardcastle at BTH Sales or by Siegmund directly. BTH Sales does not sell cobots; for cobot cells we help with table integration and fixturing (see cobot welding with Siegmund tables). Live demos at our St. Marys showroom are by appointment (book a demo), and we offer video demos if you are outside Ontario. BTH Sales is family-owned, founded in 2001, and has been the exclusive Canadian importer of Siegmund since 2018.
Typical uses
- Fixed long-term connection of tables, U-squares and aluminum profiles (Siegmund).
- When clamping aluminum parts, tighten hand-tight only (Siegmund).
- Siegmund recommends System 16 for light to medium-duty work and precision fixtures; its close 50 mm grid lets small components be fixed with high precision.

Industries served: Siegmund's published practical examples show its welding tables and tooling in these sectors: Agriculture; Interior; Lighting and electrical engineering; Machine tools and plant construction; Measurement and testing technology; Motorcycle engineering; Revolving door systems; Robotic technology; Stage technology; Stainless steel processing; Steel, sheet metal and metal construction; Textile production; Train Construction; Vehicle construction; Welding technology; Woodworking.
Frequently Asked Questions
Why choose the version with collar?
Siegmund says it is also suitable for use in elongated holes and especially suitable for aluminum; a special flat screw gives a better fit when connecting aluminum profiles.
How tight should I clamp aluminum parts?
Siegmund says the clamping torque depends on the material, and that when clamping aluminum parts the bolts must only be tightened hand-tight.
Will it fit other 16 mm welding tables?
Yes, if the table has Ø16 mm bores on a 50 mm grid. Check the bore diameter and grid before ordering. Compatible tables from other manufacturers are often made from different materials and to different standards, so quality varies by manufacturer, compared with Siegmund's X8.7 tool steel.
Related parts
- System 16 Connecting Bolt
- System 28 Connecting Bolt with Collar
- All Siegmund System 16 bolts
- System 16 Professional Extreme 8.7 tables
Ships across Canada from 5 Industrial Rd, St. Marys, ON N4X 1G2, or pick up from our warehouse. Most orders ship within 48 hours. Email sales@bthsales.ca or call +1-519-461-1381 with questions or for a freight quote.