Product Info Catalog Hardware Builders Hardware Springs Extension Spring, 1-1/4-In. OD x 7-In. Extension Spring, 1-1/4-In. OD x 7-In. Request a Quote UPC: 38594002674 SKU: 681551 Model Number: C-267 1-1/4" OD, Extension Spring, 7" Length, .162" Wire Diameter, 2.72" Maximum Deflection, 93.7 LB Maximum Safe Load, Bulk With UPC.