... it is installed?A: No, it is tamper-resistant.Q: Is this anchor made from a material that does not ... time. These anchors are available with a stainless steel nail.Q: Is the mushroom head the only style head that ... is available?A: Yes.Q: What other names are these type of anchors called? ... , zamac hammer drive screw, zamacs, zamac nailin, hammer set, pin bolt. metal hit anchor