GUWANJI Grade 12.9 High-Strength Black Hex Socket Cap Screws

GUWANJI Grade 12.9 high-strength hex socket cap screws, made from blackened alloy steel. These extended bolts feature a coarse, full thread design and conform to GB/T 70.1 standards, suitable for demanding fastening applications.

type: Internal hexagon socket head cap screw Surface treatment: Black Tooth type: coarse thread Material: alloy steel Implementation Standards: GB /T 70.1 Nominal length: 0.5 Nominal diameter: 0.3 Performance level: 12.9 Full thread / Partial thread: Half-thread Pitch: standard