【M10 Hex Socket Screws】Hex Socket; Head Style: Socket Cap Head; Material: Titanium Steel; Color: Black. Use M8 Hex Allen Wrench (not included) 【Package Content: 25 Screws】25PK Hex Socket Cap Screws; Thread Size: M10. Length: 20MM Pitch 1.50 【Size】Screw Diameter: 0.4"/10mm, Screw Length: 0.8"/20mm, Head Diameter: 0.6"/16mm, Head Length: 0.4"/10mm 【Weight】1PK Weight: 21.4g/0.05 lbs; 25 PK Weight: 538g/1.2 lbs; Suitable Fastener Type: Used with M8 Hex Key 【Nuts】Use M10 nus. https://www.fixturedisplays.com/index.php?route=product/search&search=15709-nut-25PK 【Product Video】Video Instructions link: https://youtu.be/7hKe1Zu0aR8. You can also search "15709-screw-25pk m10 socket screw m8 allen hex wrench fixturedipsplays" on youtube to locate the video. You can also download video by following this link: https://www.fixturedisplays.com/video/15709.AVI