Product Info Catalog Hardware Builders Hardware Springs Extension Springs, 15/32-In. OD x 4-1/2-In., 2-Pack Extension Springs, 15/32-In. OD x 4-1/2-In., 2-Pack Request a Quote UPC: 38594002193 SKU: 681395 Model Number: C-219 2 Pack, 15/32" OD, Extension Spring, 4-1/2" Length, .041" Wire Diameter, 8.33" Maximum Deflection, 5.28 LB Maximum Safe Load, Polybag.