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SPEC Extension Spring - Machine Hook Extension Springs
SPECMachine Hook Extension Springs

SPEC Extension Spring

The SPEC Extension Spring is a machine hook extension spring made of music wire, supplied in a 5-pack (MPN MH03600391370M). It features a 1 3/8 in free length, 0.039 in wire diameter, 0.36 in O.D., and an oil finish.

SKU 3G-OTH-681635

Brand
SPEC
Item
Extension Spring
Category
Machine Hook Extension Springs
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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
MH03600391370M
Type
5 PK
O.D.
0.36 in
Finish
Oil
Free Lg
1 3/8 in
Wire Dia
0.039 in

Technical Documents

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

Product Description

The SPEC Extension Spring is a machine hook extension spring made of music wire, supplied in a 5-pack (MPN MH03600391370M). It features a 1 3/8 in free length, 0.039 in wire diameter, 0.36 in O.D., and an oil finish.

Frequently Asked Questions

What is a SPEC extension spring used for?

A SPEC extension spring with machine hooks is used to provide pulling force in industrial assemblies such as conveyor systems, gate mechanisms, and counterbalance applications. The 5-pack of music wire springs offers consistent tension for light- to medium-duty mechanical designs.

What are the specifications of the SPEC extension spring MH03600391370M?

This SPEC extension spring has a free length of 1 3/8 in, wire diameter of 0.039 in, outside diameter of 0.36 in, and an oil finish. It is made of music wire and comes in a 5-pack. The manufacturer part number is MH03600391370M.

Where to buy SPEC extension springs worldwide?

3G Electric supplies SPEC extension springs worldwide, handling full logistics and customs clearance. We source genuine industrial components across 14 departments, including springs, and deliver to any global destination. Contact us for availability and lead time on the MH03600391370M 5-pack.

How to select the right extension spring for an application?

To select the right extension spring, match free length, wire diameter, and outside diameter to your required load and deflection. The SPEC MH03600391370M offers a 1 3/8 in free length and 0.039 in wire diameter. Always verify hook type and finish—oil finish provides basic corrosion resistance for indoor use.

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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