Amazon.com: Handyman Springs SP 9720 Compression Spring, Spring Steel Construction, Nickel-Plated Finish, 0.041 GA x 5/16 In. x 1-1/4 In. (4 Pack) : Industrial & Scientific
Amazon.com: Stainless Steel Chain, Lsqurel 6.5ft 13ft Metal Chain Link Chain 1/4in Heavy Duty Chain Utility Chain Jack Chain for Home Outdoor Camping Hanging etc (1/4in-13ft) : Industrial & Scientific