Oil-tempered torsion springs conforming to ASTM A229
16-gauge, 12” diameter galvanized drum
Low friction, grease-filled steel ball bearings staked in each drum
26-gauge spiral torque tubing that houses axle assembly
Guides:
12-gauge galvanized steel guide with 11-gauge windlock bar spot-welded guide
Bolt-on head stop, ¼” thick steel
2-7/8″ guide depth
Pre-punched for lock and attachment bolts
Vinyl guide wear strip
Universal jamb mount
Hardware:
Bottom bar mounted 10-gauge slide locks (2 per door)
Bottom bar mounted 16-gauge step plate (2 per door)
12-gauge door mounting brackets
1-5/16” tension holding device
For more information on the Model 3100, download our brochure.To purchase or inquire, call us at (770) 562-2850 or contact us directly. Our team of steel roll-up door experts is ready to assist you.