Product Info Catalog Hardware Builders Hardware Springs Extension Springs, 3/4-In. OD x 2-5/8-In., 2-Pack Extension Springs, 3/4-In. OD x 2-5/8-In., 2-Pack Request a Quote UPC: 38594001776 SKU: 681270 Model Number: C-177 2 Pack, 3/4" OD, Extension Spring, 2-5/8" Length, .105" Wire Diameter, .82" Maximum Deflection, 46.2 LB Maximum Safe Load, Polybag.