Timco 3.5x40 Classic Multi-Purpose Screw – PZ-Yellow Double Countersunk, 200Pack

Their 25° sharp point and specially designed deep single thread provide excellent grip and rapid starting, ensuring secure fixing with high pull-out resistance. Surface-hardened to 750 HV for shear resistance and constructed with a ductile core hardness of 450 HV, these screws perform exceptionally under heavy load.

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