6-lobe drive helps prevent driver-bit cam-out, resulting in easier driving and longer bit life.Available in Types 316 and 305 stainless steel.The truss-head feature engineered superior fastening results for a strong, professional finish. The 6-lobe drive recess provides for a secure bit which reduces cam-outs and leads to longer bit life. This document serves as a tool to help effectively make the correct fastener selection based on your needs.316 Stainless Steel Truss-Head Wood screw provides superior corrosion resistance while fastening all types of wood decking, including cedar, redwood and preservative-treated woods (non-hardwood). It is important for contractors to choose the correct material for their fasteners based on their job site environment. Each grade of stainless steel will have different properties and provide advantages in particular environments. Stainless steel fasteners can offer a wide variety of strength and corrosion-resistant properties to meet your requirements. Our team is ready to answer all your questions and help place your order. We welcome you to explore our extensive range of fasteners to find the best fit for the intended application, climate, and budget. In addition, many of our cladding fasteners for rainscreen systems and panel screws are offered with both 304 and 316 to accommodate a diverse range of environments, including highly corrosive conditions. Popular examples include the Bi-Met 300® series curtain wall screws series or in the stainless self-tappers. SFS offers multiple products that utilize the corrosive resistant properties of 304 stainless steel. The information from this chart is derived from the MCA technical document, "Fastener Compatibility with Profiled Metal Roof and Wall Panels". ![]() The following chart describes the situations in which a fastener of a particular material can be installed into a surface of a particular material. They do not describe specific quantitative criteria for pollution levels, but are instead meant to be standard guidelines for generalized environmental conditions. Environmental condition explanationĮnvironmental grades are taken from ISO 12944. Results based on SFS internal testing and supplemented by The Nickel Institute, "Design Guidelines for the Selection and Use of Stainless Steel" (Released by AISI). All environmental conditions are based on EN ISO 12944 Exposure Categories. The following chart describes the environmental conditions in which certain grades of stainless steel are appropriate. Review the tables below to learn more about 304, 316 and other popular SS grades to determine the optimal choice for your upcoming project. ![]() Due to the lower alloy content in the 400 series of stainless steel, fasteners made from this material tend to cost less than the 300 series parts. This increased amount of carbon gives the 400 series of stainless steels increased strength characteristics as well as better performance at elevated temperatures while still maintaining some corrosive resistance. For example, 410 SS has a low alloy content, meaning that there are fewer materials added to its composition, resulting in a higher carbon content. ![]() While the 300 series offers superior corrosion resistance, the 400 series provides an elevated hardness. ģ04 and 316 stainless steel fasteners are not the only material options available for consumers. Alternatively, 316 SS fasteners tend to be used by contractors who operate in highly corrosive environments in order to prevent stress corrosion cracking. It meets standard corrosion requirements at a lower cost than the higher grade material. For this reason, 304 SS products are more popular among consumers. ![]() When made into fasteners, the 304 SS tends to be more affordable. See all Roofing Fasteners & AccessoriesĪnother difference between the 304 and 316 is the cost of the material.
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