M20 x 50mm Socket Cone Point Grub Screws (DIN 914) - A4 Stainless Steel Socket Cone Point Grub Screws, also known as Set Screws, feature an internal socket drive, and are fastened with a Hexagonal\/Allen key. Grub Screws are used to connect two objects together by threading into one and applying tension to the other. The high level of torque this produces results in a strong yet inconspicuous fastening. The Cone Point on this Grub Screw pierces the fastened surface to provide a secure hold. These Socket Cone Point Grub Screws are made from A4 Marine Grade Stainless Steel which provides corrosion and oxidation resistance as well as increased resistance in harsh chemical and outdoor environments. For larger quantities or custom sizes, please email and one of our team will provide you with a quotation. M20 x 50mm Socket Cone Point Grub Screws (DIN 914) - A4 Stainless Steel