Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

SPEC Extension Spring: 302 Stainless Steel, 3 1/2 in Free Lg, 0.041 in Wire Dia - Machine Hook Extension Springs
SPECMachine Hook Extension Springs

SPEC Extension Spring: 302 Stainless Steel, 3 1/2 in Free Lg, 0.041 in Wire Dia

The SPEC Extension Spring is a 302 Stainless Steel Machine Hook Extension Spring, supplied as a 5 PK with a Free Lg of 3 1/2 in, Wire Dia of 0.041 in, and O.D. of 0.36 in. It features a Plain finish and is identified…

SKU 3G-OTH-679026

Brand
SPEC
Item
Extension Spring: 302 Stainless Steel, 3 1/2 in Free Lg, 0.041 in Wire Dia
Part Number
H03600413500S
Category
Machine Hook Extension Springs
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

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
H03600413500S
Type
5 PK
O.D.
0.36 in
Finish
Plain
Free Lg
3 1/2 in
Wire Dia
0.041 in

Technical Documents

No technical documents available for this product.
Request documentation
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

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

Product Description

The SPEC Extension Spring is a 302 Stainless Steel Machine Hook Extension Spring, supplied as a 5 PK with a Free Lg of 3 1/2 in, Wire Dia of 0.041 in, and O.D. of 0.36 in. It features a Plain finish and is identified by MPN H03600413500S.

Frequently Asked Questions

What is a SPEC 302 Stainless Steel Extension Spring used for?

This SPEC extension spring provides tension in mechanical assemblies, such as industrial machinery, conveyors, and automotive systems. Its 302 stainless steel construction offers corrosion resistance for demanding environments. 3G Electric supplies this spring across 14 industrial departments, including power transmission and material handling.

What are the specifications of the SPEC Extension Spring H03600413500S?

This SPEC extension spring has a free length of 3 1/2 in, wire diameter of 0.041 in, and outer diameter of 0.36 in. It is made of 302 stainless steel with a plain finish and comes in a 5-pack. The manufacturer part number is H03600413500S.

Where to buy SPEC Extension Spring H03600413500S worldwide?

3G Electric supplies the SPEC Extension Spring H03600413500S to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. As a global industrial solutions provider since 1990, we source genuine parts across 14 departments, including springs and power transmission.

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

Select an extension spring by matching free length, wire diameter, outer diameter, and material to your load and deflection requirements. For corrosion resistance, 302 stainless steel is a common choice. 3G Electric can help interpret your needs and source the correct SPEC spring for your machinery.

Not sure this is the right part? Photo-identify it

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.

You might also need

Burners & Combustion Pumps & Compressors Spare Parts All Products

More from SPEC

View all SPEC parts
Extension spring with machine hooks, made of music wire with an oil finish. Free length 17 mm, wire diameter 0.5 mm, outer diameter 3.5 mm. Supplied as a 2-pack. Used to provide tension in mechanical assemblies such as industrial equipment, conveyors, and automation systems
SPEC
Extension spring with machine hooks, made of music wire with an oil finish. Free length 17 mm, wire diameter 0.5 mm, outer diameter 3.5 mm. Supplied as a 2-pack. Used to provide tension in mechanical assemblies such as industrial equipment, conveyors, and automation systems
This machine hook extension spring has a free length of 3 1/2 in, wire diameter of 0.055 in, and outer diameter of 0.65 in. It features a plain finish and is supplied in a pack of 2. Typical applications include providing tension in mechanical assemblies and counterbalancing in industrial equipment
SPEC
This machine hook extension spring has a free length of 3 1/2 in, wire diameter of 0.055 in, and outer diameter of 0.65 in. It features a plain finish and is supplied in a pack of 2. Typical applications include providing tension in mechanical assemblies and counterbalancing in industrial equipment
Music wire extension spring with machine hooks, 0.034 in wire diameter, 0.24 in outer diameter, 2 1/4 in free length. Oil finish. Supplied in a 3-pack. Used for tension applications in machinery, such as counterbalances, garage doors, and agricultural equipment
SPEC
Music wire extension spring with machine hooks, 0.034 in wire diameter, 0.24 in outer diameter, 2 1/4 in free length. Oil finish. Supplied in a 3-pack. Used for tension applications in machinery, such as counterbalances, garage doors, and agricultural equipment
Extension spring with machine hooks for tension applications. 302 stainless steel construction with plain finish. 0.026 in wire diameter, 0.18 in outer diameter, 1/2 in free length. Sold in a pack of 5. Used to store energy and resist pulling forces in industrial machinery, automation, and material handling equipment
SPEC
Extension spring with machine hooks for tension applications. 302 stainless steel construction with plain finish. 0.026 in wire diameter, 0.18 in outer diameter, 1/2 in free length. Sold in a pack of 5. Used to store energy and resist pulling forces in industrial machinery, automation, and material handling equipment
This SPEC extension spring features machine hooks for tension applications in industrial machinery. Made of 302 stainless steel with a plain finish, it has a free length of 1 3/8 in, wire diameter of 0.029 in, and outer diameter of 0.18 in. Supplied in a pack of 5
SPEC
This SPEC extension spring features machine hooks for tension applications in industrial machinery. Made of 302 stainless steel with a plain finish, it has a free length of 1 3/8 in, wire diameter of 0.029 in, and outer diameter of 0.18 in. Supplied in a pack of 5
Extension spring with machine hooks, made of 302 stainless steel with plain finish. Free length 15.9 mm, wire diameter 0.63 mm, outer diameter 4.5 mm. Supplied as a 2-pack. Used in applications requiring resistance to pulling forces and controlled return, such as industrial machinery and mechanical assemblies
SPEC
Extension spring with machine hooks, made of 302 stainless steel with plain finish. Free length 15.9 mm, wire diameter 0.63 mm, outer diameter 4.5 mm. Supplied as a 2-pack. Used in applications requiring resistance to pulling forces and controlled return, such as industrial machinery and mechanical assemblies
This extension spring features machine hook ends and is made from 302 stainless steel with a plain finish. It has a free length of 7 inches, wire diameter of 0.148 inches, and outer diameter of 1.5 inches. Commonly used in tension applications within industrial machinery, material handling, and automation systems
SPEC
This extension spring features machine hook ends and is made from 302 stainless steel with a plain finish. It has a free length of 7 inches, wire diameter of 0.148 inches, and outer diameter of 1.5 inches. Commonly used in tension applications within industrial machinery, material handling, and automation systems
This 5-pack of machine hook extension springs from SPEC features music wire construction with an oil finish. Each spring has a 0.3 in outer diameter, 0.037 in wire diameter, and 1 in free length. Commonly used to provide tension in mechanical assemblies such as counterbalances, door returns, and conveyor systems
SPEC
This 5-pack of machine hook extension springs from SPEC features music wire construction with an oil finish. Each spring has a 0.3 in outer diameter, 0.037 in wire diameter, and 1 in free length. Commonly used to provide tension in mechanical assemblies such as counterbalances, door returns, and conveyor systems