Vis Torx 1/4-20 + embout 1-1/2" : Amazon.fr: Bricolage
Pack of 100 Spengler Screws with EPDM Sealing Washer - 20 mm - Hexalobular ( TORX) TX - 4.5 x 20 mm DIN7995 Stainless Steel A2 V2A - [SC Standard Parts] : Amazon.de: DIY & Tools
T20 (T-20) Torx/Star Driver Bit Color Coded T20 x 1" Torx/Star Drive Bit for Screws and Fasteners Requiring T20 (T-20) Size Bits (10 PACK) - - Amazon .com