Hollow and slotted lengthwise to create tension, these self retaining Spring Pins are made of Carbon Steel which is stronger than 18-8 stainless steel. Useful for many purposes, including electrical connectors in patch board circuits, terminals, fixtures for wire harness, actuators for drum, to secure pulley or gear to shaft, hinges, positioning, studs and many others. Useful for many purposes, including electrical connectors in patch board circuits, terminals, fixtures for wire harness, actuators for drum, to secure pulley or gear to shaft, hinges, positioning, studs and many others. Useful for many purposes, including electrical connectors in patch board circuits, terminals, fixtures for wire harness, actuators for drum, to secure pulley or gear to shaft, hinges, positioning, studs and many others.

Product Description Also known as Lag Bolts, Lag Screws come in longer lengths than wood screws and are easy to tighten with a wrench. Also known as Lag Bolts, Lag Screws come in longer lengths than wood screws and are easy to tighten with a wrench. Also known as Lag Bolts, Lag Screws come in longer lengths than wood screws and are easy to tighten with a wrench. Also known as Lag Bolts, Lag Screws come in longer lengths than wood screws and are easy to tighten with a wrench. Also known as Lag Bolts, Lag Screws come in longer lengths than wood screws and are easy to tighten with a wrench. As others mentioned, the plating does result in an extremely tight fit on some screws (mind you, screw heads are made to differing tolerances, as well), but if the straight end doesn't fit easily, the ball end always fits in well with minimal effort.