

The Prism Collar Screw 160649 fastens System 16 prisms in the table bores. The Special Screw 160649.0 is listed by Siegmund for System 16 prisms. Both are 10 mm long with a 16 mm diameter. BTH Sales is the exclusive Canadian importer of Siegmund.
Specifications
| Item no. | 160649 (siegmund.com) | 160649.0 (siegmund.com) |
|---|---|---|
| Siegmund name | Prism Collar Screw burnished | Special screw |
| System | Siegmund System 16 (Ø16 mm bores, 50 mm grid) | |
| Length | 10 mm (0.39 in) | |
| Diameter | 16 mm (0.63 in) | |
| Weight | 0.02 kg (0.04 lb) | |
Works with this product
-
Siegmund System 16 - Vario Prism Ø 50 90°/120° With Screwed-In Collar
From $86.00
-
Siegmund System 16 - Vario Prism Ø 50 90°/120° Without Collar
$88.00
-
Siegmund System 16 & 28 - Anti-Splatter
From $38.00
-
Siegmund System 16 & 28 - Clean Basic
From $32.00
-
Siegmund System 16 & 28 - Ground Connection Comfort
$104.00
Compatibility
- Fits: Siegmund System 16 welding tables and tooling with Ø16 mm bores.
- Not compatible: System 28 (Ø28 mm) tables; Siegmund builds each system around one bore size.
- Related products: 160645.1.N Siegmund System 16 - Vario Prism Ø 50 90°/120° With Screwed-In Collar, 160641 Siegmund System 16 - Vario Prism Ø 50 90°/120° Without Collar.
- 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 Prism Collar Screw burnished (160649)
- 1 x Siegmund Special screw (160649.0)
Typical uses
- Fixing a System 16 prism in a bore
- Replacing a lost collar screw
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. 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.
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.
Ships across Canada by freight from 5 Industrial Rd, St. Marys, ON N4X 1G2, or pick up from our warehouse. Email sales@bthsales.ca or call +1-519-461-1381 for a freight quote and delivery estimate.
Frequently Asked Questions
What does the Prism Collar Screw do?
Siegmund describes it as a screw collar for prisms, used to fasten prisms in boreholes.
What is the difference between 160649 and 160649.0?
160649 is the burnished Prism Collar Screw; 160649.0 is a Special Screw that Siegmund lists for System 16 prisms. Both are 10 mm long, Ø16 mm and 0.02 kg.




