Blue Color, Fire Fighter - Flame Resistant, Machine Embroidery Thread, (#40 Weight, Ref. N1842), 1000 yd Spool by MADEIRA Books 5 densityRecommended Needle: #65/9 or

5 densityRecommended Needle: #65/9 or #70/10

Available Pin Cushion Colors:

Available in a wide variety of fashion colors

Any of these items may be subject to additional processing days

Blue Color, Fire Fighter - Flame Resistant, Machine Embroidery Thread, (#40 Weight, Ref. N1842), 1000 yd Spool by MADEIRA Books 5 densityRecommended Needle: #65/9 orFire Fighter is a fire resistant embroidery thread that was developed for fire and safety. Applications include aeronautics, utility services, motorsports and other fields where safety standards are required. Fire Fighter flame resistant machine embroidery thread is made from 100% Aramid which contains Nomex branded fibers from Dupont. Madeiras Fire Fighter embroidery thread complies with ISO standards ISO 6941, ISO 15025 and DIN EN ISO 11612 D + E.