Product Info Catalog Hardware Builders Hardware Springs 1/8-Inch OD x 1-7/8-Inch-Long Extension Spring, 2-Pack 1/8-Inch OD x 1-7/8-Inch-Long Extension Spring, 2-Pack Request a Quote UPC: 38594000519 SKU: 680983 Model Number: C-51 2 Pack, 1/8" OD, Extension Spring, 1-7/8" Length, .014" Wire Diameter, 3.17" Maximum Deflection, 1.19 LB Maximum Safe Load, Polybag.