Not Applicable: This helmet hasteners does not fit for 3M Adflo, Speedglas 9100fx, Miller Infinity series, Lincoln K2800-1.
Body & knob made from lightweight 6061-t6 Aluminum, Better than plastic, Say goodbye to the worries of stripping out from your helmets. The fastener's screws surface was anodized to create a glossy film that won't grow dark for long-time use.
Fit for the flip hood and replace easily damaged plastic fasteners. Fit for fiber-metal 2090 with 3C headgear too, welding hood fasteners pipeliner, and other welding helmets.
Due to different helmets designs, if you want to make the fasteners tighter, It's recommended to put 1/4" external tooth lock washers on them and they will hold very strong. See our customers' experience sharing.
3mirrors brand is the ORIGINAL DESIGN of welding hood accessories with high quality. We have been selling this series of products for more than 5 years, the others are imitators. Any questions, please contact us for help.