M4 x 16mm Socket Cap Head Screws (DIN 912) - Peek Metric Socket Cap Head Screws are a widely used machine screw, which feature an internal socket drive, and are fastened with a Hexagonal\/Allen key. Due to this, they are very versatile and easily accessible as the internal drive allows for a smaller head diameter than seen on other machine screws. These Socket Cap Head Screws have been precision manufactured in house from high quality PEEK UL94 V-0 using state of the art CNC machines. PEEK is ideal for use in demanding applications since PEEK has excellent thermal and chemical resistance, as well as a high degree of mechanical strength and stiffness. The material flammibility standard of PEEK is UL94 V-0 and the continuous use temperature for this material is 180°C. Due to this, unless the item is deemed faulty, this item is non-returnable and non-refundable. All Peek screws are manufactured to order therefore please allow 1 to 2 weeks for dispatch, if we do have any in stock, we will dispatch within 1 working day. For larger quantities or items not listed, please email and one of our team will provide you with a quotation. M4 x 16mm Socket Cap Head Screws (DIN 912) - PEEK