UNC Cap Screws Allen Key Hexagon Socket Head BoltsStrength Black 12.9 High

UNC Cap Screws Allen Key Hexagon Socket Head Bolts 12.9 High Strength Black. Material: 12.9 high strength. The product is made of 12.9 grade high-strength alloy steel material, which has the characteristics of high toughness, good cold and hot processing performance, and excellent machinability.

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