Engineered Source is your source for hot headed, cold headed, and machined special fasteners to print like this machined sleeve. Virtually any special material, certification, or part specific requirements can be incorporated into the process and we can assist you with your special fastener request even when small quantities are involved. This specific part was manufactured using 304 stainless steel, passivated, and run through a water immersion test for 24 hours. Made in USA, this special sleeve is DFAR compliant and original order quantity was for 50 pieces.