Clamp connector joint:
Black version--Aluminum, powder coated, textured finish
Tumbled version--Aluminum, matte shot-blasted finish
Clamping bores machined
Cap screws: DIN 912, steel, zinc plated
Nylon insert hex nuts: DIN 985, steel, zinc plated
ADJUSTABLE CLAMPING LEVER KITS GN 911 (SOLD SEPARATELY):
These kits can be used to replace the DIN 912 cap screws with adjustable levers. They include lever, spacer bushing, and hex nut, unassembled. See GN 911 to order separately; see right hand column in tables for part numbers of appropriate kit.
GN 288 swivel clamp connector joints are an assembly of GN 276 and GN 278 swivel clamp connectors. For the type with a stepless adjustment (Type S), swivel clamp connectors with a centering step are used. Since the swivel clamp connectors have an identical swivel width "b," all bores "d1/d2" can be combined as needed.
The clamping bore is machined and designed for construction tubings GN 990 or DIN 2391, DIN 2395 and DIN 2462 respectively.
In the standard version, the clamping force of the clamp onto the tube is achieved via the socket cap screws and hex nuts with nylon insert.
Stainless steel screws available upon request.