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3G Electric
SPEC Extension Spring - Machine Hook Extension Springs
SPECMachine Hook Extension Springs

SPEC Extension Spring

The SPEC Extension Spring is a 302 Stainless Steel machine hook extension spring supplied in a 3 PK. Key specifications include a 0.037 in wire diameter, 0.42 in O.D., 1 1/4 in free length, and a plain finish (MPN…

SKU 3G-OTH-680806

Brand
SPEC
Item
Extension Spring
Part Number
H04200371250S
Category
Machine Hook Extension Springs
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

SPEC
Manufacturer Part Number
H04200371250S
Type
3 PK
O.D.
0.42 in
Finish
Plain
Free Lg
1 1/4 in
Wire Dia
0.037 in

Technical Documents

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

Product Description

The SPEC Extension Spring is a 302 Stainless Steel machine hook extension spring supplied in a 3 PK. Key specifications include a 0.037 in wire diameter, 0.42 in O.D., 1 1/4 in free length, and a plain finish (MPN H04200371250S).

Frequently Asked Questions

What is a SPEC extension spring used for?

A SPEC extension spring, like this 302 stainless steel machine hook spring, stores and releases energy to resist pulling forces. It is commonly used in industrial machinery, automotive assemblies, and material handling equipment where a consistent return force is required.

What are the specifications of the SPEC extension spring H04200371250S?

This SPEC extension spring has a 0.037 in wire diameter, 0.42 in O.D., 1 1/4 in free length, and a plain finish. It is made of 302 stainless steel and comes in a 3 PK. The manufacturer part number is H04200371250S.

Where to buy SPEC extension springs worldwide?

3G Electric supplies SPEC extension springs worldwide. We handle full logistics and customs clearance to deliver this 302 stainless steel spring to your facility. Contact us for a quote on the H04200371250S or other SPEC spring sizes.

How to select the right SPEC extension spring for an application?

To select the right SPEC extension spring, match the wire diameter, outer diameter, and free length to your load and space requirements. For this 0.037 in wire, 0.42 in O.D. spring, ensure the machine hook ends fit your mounting points and the plain finish suits your environment.

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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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This extension spring features machine hooks for tension applications in mechanical assemblies. Made from music wire with an oil finish, it has a 0.031 in wire diameter, 0.18 in outer diameter, and 3/4 in free length. Supplied in a 5-pack
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Machine hook extension spring made of music wire with an oil finish. Wire diameter 0.045 in, outer diameter 0.5 in, free length 4 1/2 in. Used to provide pulling force in assemblies such as counterbalances, garage doors, and agricultural equipment. Sold in a pack of 5
Music wire extension spring with machine hooks. 0.5 mm wire diameter, 2.5 mm outer diameter, 10.9 mm free length. Oil finish. Supplied as a 2-pack. Used to provide tension in mechanical assemblies such as industrial equipment and automation systems
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Music wire extension spring with machine hooks. 0.5 mm wire diameter, 2.5 mm outer diameter, 10.9 mm free length. Oil finish. Supplied as a 2-pack. Used to provide tension in mechanical assemblies such as industrial equipment and automation systems
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This machine hook extension spring is made of music wire with an oil finish. It has a free length of 28 mm, wire diameter of 0.5 mm, and outer diameter of 2.5 mm. Supplied as a 2-pack, it is used to provide tension in industrial assemblies such as valves, clutches, and conveyor systems
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This machine hook extension spring is made of music wire with an oil finish. It has a free length of 28 mm, wire diameter of 0.5 mm, and outer diameter of 2.5 mm. Supplied as a 2-pack, it is used to provide tension in industrial assemblies such as valves, clutches, and conveyor systems
This extension spring features machine hooks for tension applications. With a 4.5 mm wire diameter, 32 mm outer diameter, and 298 mm free length, it provides consistent force in counterbalancing, lifting, or pulling mechanisms. The plain finish suits general industrial use
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This extension spring features machine hooks for tension applications. With a 4.5 mm wire diameter, 32 mm outer diameter, and 298 mm free length, it provides consistent force in counterbalancing, lifting, or pulling mechanisms. The plain finish suits general industrial use

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