Product Info Catalog Hardware Builders Hardware Springs Extension Springs, 11/16-In. OD x 4-3/4-In., 2-Pack Extension Springs, 11/16-In. OD x 4-3/4-In., 2-Pack Request a Quote UPC: 38594002278 SKU: 681429 Model Number: C-227 2 Pack, 11/16" OD, Extension Spring, 4-3/4" Length, .091" Wire Diameter, 2.26" Maximum Deflection, 33.9 LB Maximum Safe Load, Polybag.