3902112 Hexagon Flange Head Cap Screw

3902112 hexagon flange head cap screw is a heavy-duty fastening part engineered for Cummins diesel engines. Manufactured from premium alloy steel with professional hardening treatment, it features strong tensile strength and excellent resistance to vibration loosening under continuous engine operation. Its integrated flange enlarges contact area and avoids surface indentation on mounted components. Precision rolling threads fit tightly and support repeated installation and removal without thread damage. This versatile fastener can be applied in multiple assembly positions during engine maintenance. It delivers stable clamping force and reduces hidden risk of loose joints for Cummins engine repair.