Product Info Catalog Hardware Builders Hardware Springs 1/4-Inch OD x 1-7/8-Inch-Long Extension Spring, 2-Pack 1/4-Inch OD x 1-7/8-Inch-Long Extension Spring, 2-Pack Request a Quote UPC: 38594000670 SKU: 681015 Model Number: C-67 2 Pack, 1/4" OD, Extension Spring, 1-7/8" Length, .020" Wire Diameter, 6.46" Maximum Deflection, 1.72 LB Maximum Safe Load, Polybag.