What is Reddit's opinion of 10 Pack 143 mm Black Adjustable L-Shape Corner Brace with Slot, Metal Steel Joint Right Angle Brackets for PC case, Fixing Furniture, Thickness 3mm, Max Load 15 kg?

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My link that I bought https://www.amazon.co.uk/dp/B096XM29TN/ref=cm_sw_r_cp_api_glt_fabc_6Q9M0QN3BNVRY3SFEZDQ?_encoding=UTF8&psc=1

I should mention that it doesn't come like this, I've removed the angle plate and bought these

10 Pack 143 mm Black Adjustable... https://www.amazon.co.uk/dp/B096XM29TN?ref=ppx_pop_mob_ap_share

M6 (6mm) Hex Nut - Stainless... https://www.amazon.co.uk/dp/B079DX27BH?ref=ppx_pop_mob_ap_share

M6 (6mm x 10mm) Flanged Hex Bolt... https://www.amazon.co.uk/dp/B07YCC7YPC?ref=ppx_pop_mob_ap_share

M6 (6mm) Flat Washer (Form A) -... https://www.amazon.co.uk/dp/B07RCCVZ1P?ref=ppx_pop_mob_ap_share

My link that I bought https://www.amazon.co.uk/dp/B096XM29TN/ref=cm_sw_r_cp_api_glt_fabc_6Q9M0QN3BNVRY3SFEZDQ?_encoding=UTF8&psc=1

https://imgur.com/a/LJ9QePW

https://www.amazon.co.uk/gp/product/B096XM29TN