{"title":"Class 4.8 External Sems Pan Head Machine Screws","description":"\u003cp\u003ePhillips Pan External Sems machine screws essentially have a ‘pre-assembled’ lock washer beneath the head of the screw which is free-spinning which saves time. External Tooth SEMS screws provide greater torsional resistance than internal tooth lock washers.\u003c\/p\u003e","products":[],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0998\/2495\/9766\/collections\/Phillips_20Pan_20Head_20External_20SEMS_20Machine_20Screws_984f0e02-71d0-4981-9570-28f6a2a5d864.jpg?v=1781810478","url":"https:\/\/fastenershack.com\/collections\/class-4-8-external-sems-pan-head-machine-screws.oembed","provider":"FastenerShack.com","version":"1.0","type":"link"}