Bulk M20 Socket Head Cap Screws – 12.9 Alloy Steel, Black Oxide Head Type_Flat (Countersunk) 25 thread for enhanced vibration

25 thread for enhanced vibration resistance and better preload control

Upgrade your fastening solutions with our premium 5/16-18 Hex Flange Bolts

Quality & Supply: Every production lot meets Monster Bolts’ internal benchmarks for hardness

These screws meet ASME B18

Matching Hardware: Pair these #10-32 fine-thread screws with our Bulk U

Bulk M20 Socket Head Cap Screws – 12.9 Alloy Steel, Black Oxide Head Type_Flat (Countersunk) 25 thread for enhanced vibrationMonster Overview: Handle your toughest industrial or structural builds with M20 Socket Head Cap Screws from Monster Bolts. Crafted from Class 12. 9 alloy steel and finished in a thermal black oxide coating, these heavy duty fasteners deliver the highest level of tensile strength and torque reliability. The robust 17 mm hex drive ensures superior tool engagement and precision torque control, even under extreme load conditions. Quality & Supply: Each