1.0Engineer News Networkhttps://www.engineernewsnetwork.com/blogrich600338<blockquote class="wp-embedded-content" data-secret="DeFbOuId5F"><a href="https://www.engineernewsnetwork.com/blog/hex-drive-bolts-and-screws/">Hex drive bolts and screws</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="https://www.engineernewsnetwork.com/blog/hex-drive-bolts-and-screws/embed/#?secret=DeFbOuId5F" width="600" height="338" title="“Hex drive bolts and screws” — Engineer News Network" data-secret="DeFbOuId5F" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" class="wp-embedded-content"></iframe><script type="text/javascript"> /* <![CDATA[ */ /*! This file is auto-generated */ !function(d,l){"use strict";l.querySelector&&d.addEventListener&&"undefined"!=typeof URL&&(d.wp=d.wp||{},d.wp.receiveEmbedMessage||(d.wp.receiveEmbedMessage=function(e){var t=e.data;if((t||t.secret||t.message||t.value)&&!/[^a-zA-Z0-9]/.test(t.secret)){for(var s,r,n,a=l.querySelectorAll('iframe[data-secret="'+t.secret+'"]'),o=l.querySelectorAll('blockquote[data-secret="'+t.secret+'"]'),c=new RegExp("^https?:$","i"),i=0;i<o.length;i++)o[i].style.display="none";for(i=0;i<a.length;i++)s=a[i],e.source===s.contentWindow&&(s.removeAttribute("style"),"height"===t.message?(1e3<(r=parseInt(t.value,10))?r=1e3:~~r<200&&(r=200),s.height=r):"link"===t.message&&(r=new URL(s.getAttribute("src")),n=new URL(t.value),c.test(n.protocol))&&n.host===r.host&&l.activeElement===s&&(d.top.location.href=t.value))}},d.addEventListener("message",d.wp.receiveEmbedMessage,!1),l.addEventListener("DOMContentLoaded",function(){for(var e,t,s=l.querySelectorAll("iframe.wp-embedded-content"),r=0;r<s.length;r++)(t=(e=s[r]).getAttribute("data-secret"))||(t=Math.random().toString(36).substring(2,12),e.src+="#?secret="+t,e.setAttribute("data-secret",t)),e.contentWindow.postMessage({message:"ready",secret:t},"*")},!1)))}(window,document); //# sourceURL=https://www.engineernewsnetwork.com/blog/wp-includes/js/wp-embed.min.js /* ]]> */ </script> https://www.engineernewsnetwork.com/blog/wp-content/uploads/2019/03/Challenge3285-hex-drive-bolts-and-screws.jpg562375Hex headed high tensile bolts and screws, together with hex drive socket head cap screws, are the mainstays of industrial fastening and as such are stocked in depth by Challenge Europe. Standard high tensile formats include non-flange hex head and flanged designs, along with standard socket cap head, socket button head and socket countersunk designs.  …