Straight M10 threaded zinc-plated steel jumper, 1mm pitch - jumper height 20mm one external foot for porcelain or plastic lamp bases.
they are ideal for fixing to M10 electrical tubes with 1mm thread - bridge height 20mm.
Product description :
Thread for M10 threaded tube
M4 fixing thread
Height H: 20mm
Length A: 16mm
Length B: 10mm
Sold without screws