Package Description: 
T-Slot Aluminum Extrusion 20 Series M5 Hardware Slide In T-Nut:
Thread Diameter : 5mm/0.2",Slot Width : 6mm (used on profiles with 6mm slot)
Total Size : 11 x 10 x 5mm/0.43" x 0.4" x 0.2"(L*W*T)

2020 90 Angle Corner Bracket Joint Aluminum Profile Extrusion: 
Total Size : 20 x 20mm 0.78" x 0.78" (L*W)

Carbon steel M5x10mm Hex Socket Cap Screw Bolt :
Thread Size: M5x10mm/0.2"x0.4"(D*L)
Total Length: 13mm/0.51"; 
Head Size: (Approx)9x3mm/0.35"x0.12"(D*T)
Hex Socket Width: (Approx)3mm/0.12"; 
Hex Socket Depth: (Approx)2mm/0.08"
Package Content: 
10pcs 20mm 90 Degree Solid Cast Aluminum Corner Bracket,
20pcs Carbon Steel Galvanized M5 x 10mm T-slot Nuts, 
20pcs Carbon steel M5x10mm Hex Socket Cap Screw Bolt