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SPEC Extension Spring: Music Wire, 39.7 mm Free Lg, 1.6 mm Wire Dia, 11 mm O.D. - Machine Hook Extension Springs
SPECMachine Hook Extension Springs

SPEC Extension Spring: Music Wire, 39.7 mm Free Lg, 1.6 mm Wire Dia, 11 mm O.D.

The SPEC Machine Hook Extension Spring (MPN HM1101600040M) is a music-wire spring with a 39.7 mm free length, 1.6 mm wire diameter, and 11 mm O.D., supplied as a 2-pack with an oil finish. 3G Electric sources this…

SKU 3G-OTH-679521

Brand
SPEC
Item
Extension Spring: Music Wire, 39.7 mm Free Lg, 1.6 mm Wire Dia, 11 mm O.D.
Category
Machine Hook Extension Springs
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Local availability & support

Delivery
Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
Payment
Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

SPEC
Manufacturer Part Number
HM1101600040M
Type
2 PK
O.D.
11 mm
Finish
Oil
Free Lg
39.7 mm
Wire Dia
1.6 mm

Technical Documents

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SPEC Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The SPEC Machine Hook Extension Spring (MPN HM1101600040M) is a music-wire spring with a 39.7 mm free length, 1.6 mm wire diameter, and 11 mm O.D., supplied as a 2-pack with an oil finish. 3G Electric sources this and thousands of other industrial components across 14 departments — machining, electrical, power transmission, material handling, and more — with specialist depth in combustion, pumps, and controls as an authorised distributor for brands including Schneider, ABB, Siemens, SKF, Festo, Fluke, Interpump, and FBR.

Frequently Asked Questions

What is a SPEC machine hook extension spring used for?

A SPEC machine hook extension spring provides tension in industrial assemblies such as machinery, conveyors, and material handling equipment. Its music-wire construction and oil finish suit general-purpose applications where reliable force and corrosion resistance are needed.

What are the specifications of the SPEC HM1101600040M extension spring?

The SPEC HM1101600040M is a music-wire extension spring with a 39.7 mm free length, 1.6 mm wire diameter, 11 mm O.D., and an oil finish. It comes as a 2-pack and is designed for machine hook mounting.

Where to buy SPEC extension springs worldwide?

3G Electric supplies SPEC extension springs worldwide, handling full logistics and customs clearance. As a global industrial sourcing partner, we provide genuine components across 14 departments, including machining and material handling, with specialist expertise in combustion, pumps, and controls.

How to select the right extension spring for an application?

Select an extension spring by matching free length, wire diameter, outer diameter, and material to your load and deflection requirements. The SPEC HM1101600040M uses music wire for high tensile strength and an oil finish for light corrosion protection. Consult a spring manufacturer's guide for exact force calculations.

SPEC Products

3G Electric supplies SPEC machine hook extension springs. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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