Items 280536 and 280537: Siegmund Universal Bolt Basic, burnished, double and triple, for System 28. Siegmund uses it when elements of different material thickness are interconnected, and calls it a simple, inexpensive bolt; the bore should be cleaned with the brush before use. BTH Sales is the exclusive Canadian importer of Siegmund.
Specifications
| Siegmund article | 280536 (siegmund.com) | 280537 (siegmund.com) |
|---|---|---|
| Description | Universal Bolt Basic double burnished | Universal Bolt Basic triple burnished |
| System | Siegmund System 28 (Ø28 mm bores, 100 mm grid) | |
| Length | 84 mm (3.31 in) | 108 mm (4.25 in) |
| Weight | 0.43 kg (0.95 lb) | 0.55 kg (1.21 lb) |
| Components clamped | 2 | 3 |
| Hex socket | size 14 | |
| Tightening torque, steel | 25 Nm | |
| Finish | Burnished | |
| Clamping range | 42–57 mm | 67–82 mm |
| GTIN | 4251805917758 | 4251805917765 |
Compatibility
- Fits: Siegmund System 28 welding tables and tooling with Ø28 mm bores on a 100 mm grid. Siegmund System 28 accessories also fit other 28 mm system welding tables with Ø28 mm bores on a 100 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 28: fits every System 28 Siegmund table, including the Professional Extreme 8.7 and 8.8 PLUS tables listed on bthsales.ca; Siegmund says it "MUST NOT be used for connecting tables and U-shaped squares".
- Not compatible: System 16 (Ø16 mm) tables; Siegmund builds each system around one bore size.
- Works with: other Siegmund System 28 clamps, bolts, stops, squares and U-squares on the same table.
- Not for: connecting tables and U-shaped squares (Siegmund). Siegmund's connecting bolts are designed for that.
- 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 Universal Bolt Basic double burnished (280536)
- 1 x Siegmund Universal Bolt Basic triple burnished (280537)
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
- Interconnecting elements of different material thickness (Siegmund).
- Siegmund describes System 28 as ideal for light to heavy components and designed for maximum clamping forces, multi-ton structures and high distortion forces.
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
Basic or Comfort?
Siegmund calls the Basic a simple, inexpensive bolt and says the bore should be cleaned with the brush before use. The Universal Bolt Comfort is self-centred in the bores by its O-ring.
What clamping range does it have?
Siegmund gives the Universal Bolt Basic a clamping range of 42 to 57 mm and the long version 67 to 82 mm.
Will it fit other 28 mm welding tables?
Yes, if the table has Ø28 mm bores on a 100 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 28 Universal Bolt Comfort
- System 28 Fast Clamping Bolt Adjustable without Slot
- All Siegmund System 28 bolts
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.
