your screws require a stronger hold to resist gradual loosening and sudden breakage due to the excessive weight of the items they’re helping to support

1-8 x 1 Socket Set Screw Cup Point 18-8 (A2) Stainless Steel

8 x 1 5/8 Square Flat Particle Board Screw w/ Nibs T17 Zinc Plated - Carton (5

7/8-14 x 2 1/4 Hex Cap Screw SS 18-8 (A2)

M36-4.00 x 380 Socket Cap Screw 12.9 Alloy Plain DIN 912 3/4-10 Socket Cap Screws Alloy your screws require a strongerM36 4. 00 x 380 Socket Cap Screw 12. 9 Alloy Plain DIN 912 . Alloy Socket Head Cap Screws from Brighton Best. Hardness of RC 38 43, meets or exceeds DIN 912. Manufactured from heat treated alloy steel, 1960 series.