Description
The Glynn-Johnson 79 Series Overhead Door Holder Surface Mounted are constructed primarily of Brass and 300 series Stainless Steel substrates, with several components fabricated of Steel treated to resist corrosion. Models in the 70 series utilize a 1/2″-diameter stainless steel bar, while the 79 series uses a 3/4″ stainless steel bar. The bar is always provided in US32D. The spring, washer and nut are provided in a clear zinc finish.
GJ70-79 Catalogue
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