26AM43
Flange Screw
Mack

High‑strength flange screws are critical fasteners used to secure components where a wide bearing surface and reliable clamping force are required in heavy‑duty applications. Built from hardened alloy steel and finished to resist corrosion, these screws provide consistent torque retention and reduced loosening under vibration. They are ideal for securing flanged connections in engine assemblies, manifolds, and other load‑bearing interfaces where sealing and rigidity matter. The design distributes compressive loads more evenly across the flange face, helping to prevent pull‑through and maintaining gasket integrity. Precise thread engagement and a durable head shape contribute to faster, cleaner installations with fewer reworks. Suitable for use in rugged Mack platforms, these screws support engine longevity by maintaining alignment and reducing micro‑movement that can wear mating parts. Always follow the recommended torque specification and inspect threads for damage prior to reassembly. Availability and technical guidance are available through Source One Parts Center.