M4 x 40mm Pin in Head Torx Screws,304 Stainless Steel Pin Torx Button Head Security Screws,Right Hand Threads,Metric,50-Pieces: Amazon.com: Industrial & Scientific
Machine Screws #6-32 X 1" Button Head Alloy Steel USA Tamper-Resistant 5Lobe Pin Drive Torx Plus(r) Brand TR031