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HILLMAN®

3-3/4-Inch Steel Zinc Extension Spring

Mfg.#
540536
Sku#
7700396
  • Max length of 8.687 mm and spring rate of 1.14 lb/in

* Estimated stock levels as of Sat, Mar 14, 2026. All items subject to prior sale. Prices may vary between stores and online. Please call ahead to confirm availability of items marked as Limited Stock.

Description

Hillman extension springs feature a standard spring design and are used as a conventional extension spring. Made of a steel material and covered with a zinc finish. Can be used in a variety of applications. Comes in a poly bag.

Specifications

General

Finish Zinc
Material Steel
Style #179

Dimensions

Diameter 5/16 in

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