Web Catalogue update October 2019

ASSY ® 3.0 A2/304 STAINLESS 06 3731 NZ. pub. 09/16 © Application: The ASSY ® 3.0 A2 of corrosion-resistant, austenitic stainless steel is designed especially for applications outdoors, in damp rooms and in salty atmospheres. Tip: Ring thread → Minimal splitting effect, especially when screwing in near the edge Thread: Asymmetrical coarse thread for short screw-in times. Head: Milling pockets for clean countersinking. AW ® drive. Material: Corrosion-resistant, austenitic stainless steel A2 (1.4301; 1.4567). Note: Pre-drilling to the core diameter in solid hard woods. ASSY ® 3.0 A2 are conditionally resistant to acid and are not suitable for use in atmospheres containing chlorine gas. The range of applications of the various stainless steels is contained in the following table of the ISER (German Information Office for Rustproof Stainless Steel, Information Leaflet 828). Rustproof stainless steels (e.g. Material No. 1.4016) are recommended there for use in the atmospheric area only for use in a rural environment, and here as well only with great restrictions. We therefore recommend only using austenitic stainless steels for outdoor applications while taking the environmental conditions into account. The stainless steel A4 is especially suitable for use in an industrial atmosphere and for use near the sea. Steel Type Short Name Environment Rural Urban Industry Near sea Material No. N M H N M H N M H N M H X1NiCrMoCu25-20-5 1.4539 Würth HCR x x x x x x x x + x x + X5CrNiMo17-12-2 1.4401/1.4578 Würth A4 x x x x + + + + (+) + + (+) X5Cr-Ni18-10 1.4301/1.4567 Würth A2 + + + + + (+) (+) (+) – + (+) – X6Cr17 1.4016 Many competitors (+) (+) (+) (+) – – (+) – – – – – Stainless steels for various ambient conditions (www.edelstahl-rostfrei.de, Information Leaflet 828) N = Lowest corrosion loading within the respective environment, characterized, forexample, by low temperatures and low humidity M = Medium corrosion loading within the respective environment H = Higher corrosion loading within the respective environment, e.g. due to continuously high humidity, high ambient temperatures, especially aggressive air pollution x = Basically meets the requirements, however less expensive steels could also be sufficient + = Probably the best choice of materials with regard to corrosion resistance and costs (+) = Sufficient behaviour, provided certain precautionary measures are taken. Smooth surface finishes and regular cleaning are especially important – = Probably heavy corrosion ASSY ® 3.0 particle board screws are optimized for use in wooden materials. When used in plastic anchors, a reduction of the load-bearing capacity is possible. For this reason, we recommend only using screws without optimized thread tips. Drive Countersunk head* w/shaft d in mm l in mm dk in mm b in mm A2/304 Pack Qty. Art. No. 6.0 60 12.0 37 AW ® 30 0180 160 60 100 80 50 0180 160 80 110 70 0180 160 110 140 0180 160 140 180 0180 160 180