bp122
Expert at Jibber-Jabber
Would these suit your needs? I have them for my Makita track saw. Work well.
www.angliatoolcentre.co.uk
They are available on Screwfix for more money if you are in a hurry.

Makita 194385-5 Clamp Set For Sp6000 Guide Rail - Anglia Tool Centre
Order MAKITA 194385-5 CLAMP SET FOR SP6000 GUIDE RAIL 47465 online at Anglia Tool Centre Free Delivery on orders over £100.00

They are available on Screwfix for more money if you are in a hurry.