Amazon.com: uxcell 100 Pcs 12.9 Steel Alloy Countersunk Hex Socket Knurled Pan Head Bolt Screw M2.5x8mm Black : Industrial & Scientific
Amazon.com: uxcell 100 Pcs 12.9 Steel Alloy Countersunk Hex Socket Knurled Pan Head Bolt Screw M2x10mm Black : Industrial & Scientific
uxcell M8x40mm Socket Head Bolts 12.9 Grade Alloy Steel Cap Screws Half Thread 10pcs: Amazon.com: Industrial & Scientific
Amazon.com: IIVVERR M12 x 80mm 12.9 Alloy Steel Hex Socket Head Cap Screw Bolt Black 10pcs (M12 x 80 mm 12.9 Acero aleado Tornillo de cabeza hexagonal Tapa Tornillo Tornillo Negro 10pcs :