HSI Specialty Fasteners

Upon request, Hunter-Stevens, Inc. will provide you with a Certificate of Compliance kind. 99.Ninety five Acceptance charge of specialty shipped fasteners. All fasteners can be manufactured in metric or normal sizes. All elements are turned down from round, hex or square bars purchased immediately from home mills. Because of this, we have information on heat treatment in addition to chemical and physical properties.

Elevated seating torque increases holding power and reduces the number of screws china needed, which reduces value because fewer drilled and tapped holes are required. For cup, flat and oval level set screws, holding energy is almost directly proportional to seating torque. Two set screws-axially inline or on the same circumferential line at an angle of perhaps 60° or more-could also be used to increase holding power.

The 787 is made of fifty percent composite materials, which will be assembled with fewer fasteners compared with steel-skinned aircraft. More and more, aerospace manufacturers are designing aircraft and spacecraft made from composites. They also are rising their use of automation-including gantry cranes and robots-to install fasteners. Suppliers have responded by developing specialty fasteners for composites and creating stronger rivets made of varied alloys. Traditional riveting stays a tried-and-true process in aerospace assembly. Aircraft assemblers install millions of stable-shank and blind rivets annually.