- AC-440-2
- Penn Engineering
- Nut Non-Locking 4-40-THD 9.14mm- HD DIA 23in/64in- HD DIA 0.36in- HD DIA 4.67mm-THK 3in/16in-THK 0.184in-THK Stainless Steel 300 Passivated ASTM A380
- LAC-440-2MD
- Penn Engineering
- Nut Lock 4-40-THD 9.14mm- HD DIA 23in/64in- HD DIA 0.36in- HD DIA 6.2mm-THK 1in/4in-THK 0.244in-THK Stainless Steel 300 Black Dry-Film Lubricant