Open Menu Tel Drill screws with inner square drive Drill screws with inner square drive are ideal for fitting of spiral ductwork. Further they don’t cause problems when using shrink tapes, as the screw head is free from sharp edges.A toothed underside ensures a secure fit. The matching conical holders are non-magnetic and as such, they do not pick up any drilling swarf. One holder is included with each pack.Available in various lengths, made of galvanised steel and stainless steel. Drill srew 3,5 x 10 mm Art. no.: 317020010 Galvanised steel Inner square drive PU 1.000 pcs, Box 10.000 pcs Enquiry Drill screw 4,2 x 13 mm Art. no.: 317010020 Galvanised steel Inner square drive PU 1.000 pcs, Box 10.000 pcs Enquiry Drill screw 4,2 x 16 mm Art. no.: 317020020 Galvanised steel Inner square drive PU 1.000 pcs, Box 10.000 pcs Enquiry Drill screw 4,2 x 19 mm Art. no.: 317030020 Galvanised steel Inner square drive PU 1.000 pcs, Box 10.000 pcs Enquiry Drill screw 4,2 x 25 mm Art. no.: 317032020 Galvanised steel Inner square drive PU 1.000 pcs, Box 10.000 pcs Enquiry Drill screw 4,2 x 42 mm Art. no.: 317035020 Galvanised steel Inner square drive PU 500 pcs, Box 5.000 pcs Enquiry Drill screw 4,2 x 13 mm AISI 304 Art. no.: 317070040 Stainless steel AISI 304 Inner square drive PU 1.000 pcs, Box 10.000 pcs Enquiry Drill screw 4,2 x 16 mm AISI 304 Art. no.: 317080040 Stainless steel AISI 304 Inner square drive PU 1.000 pcs, Box 10.000 pcs Enquiry Holder Holder Art. no.: 317010030 Q2-50 For drill screws with square drive PU 1 pcs Enquiry YOUR CONTACTS Your team “HVAC COMPONENTS” For all queries please don´t hesitate to contact us. We look forward to hearing from you.Get in touch with us REQUEST A CATALOG Please Choose Mr. Mrs. PRODUCTS Reinforcement sections HVAC components Vineyard stakes Bespoke profiles GEBHARDT-STAHL GMBH We have been manufacturing cold-rolled metal sections in Werl for more than 30 years. We’re an innovative medium-sized enterprise and focus on the production of steel reinforcement sections for PVCu windows, HVAC components, steel vineyard stakes and bespoke profiles. Gebhardt-Stahl GmbH Runtestraße 33 59457 Werl+49 (0) 29 22 / 97 33 - 0 info@gebhardt-stahl.de © 2021 Gebhardt-Stahl GmbH Sitemap Imprint Data Protection Statement Terms and conditions Purchasing terms