Blog

By ZenSupply Specifications Team · Reviewed by ZenSupply technical staff · Last updated August 12, 2026 At a Glance LCN 4041 — cast-iron Grade 1 Super Smoothee, the industry benchmark for high-abuse … read more

By ZenSupply Specifications Team · Reviewed by ZenSupply technical staff · Last updated August 10, 2026 At a Glance Schlage ND-Series — Grade 1 cylindrical lever lock, the workhorse spec for schools … read more

Compare Norton Rixson door closer series, specs, and applications. Heavy-duty, hold-open, delayed-action and concealed options—shop or quote today. Norton Rixson 1700 Series Light Commercial Su … read more

Commercial automatic door operators buying guide: compare LCN, Norton Rixson, dormakaba & Record specs, ADA low-energy rules, activation & wiring. Shop now. LCN 6440 COMPACT Automatic Operator M … read more