SFS offers a Zinc alloy cap -or ZAC- a hex washer head that will never red rust. A hex washer head has six flat sides formed integrally with a flat washer that projects beyond the sides and provides a flat bearing surface. As well as countersunk or pancake styles which lay flush with the substrate. Most commonly seen are hex heads which have a flat or indented top surface, six flat sides, and a flat bearing surface built to handle rougher installation. Which head types are available with steel self-tapping screws?Ī. Self-tapping screws cover a full range of head types. In turn, it isn’t quite as strong as other steels (like 400 series or carbon), though it's hard in its own right.įrequently asked questions: self-tapping fasteners As you can learn about in our article 300 vs 400 Series Stainless Steel, 304 is amongst the most rust-resistant metals available to fastener manufacturers and their customers. 304 Stainless Steel - Bring on the rain, sleet, and salty ocean air! 304 stainless steel self-tapping screws can withstand the wettest of environments.Though we utilize carbon steel with corrosion-resistant metals within its composition, it is best used in less-harsh environments. However, its shortcoming is the lackluster rust-preventing properties. This provides greater overall strength than many stainless steels. Though it embodies a full range of strengths, rust resistance, and compositions, SFS chose the following steels for our roofing and cladding self-tapping screws.Ĭarbon Steel - Named for its significant carbon content, a carbon steel self-tapper must have 2.1% of its weight attributed to carbon. The classification of steel offers more diversity than you may realize.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |