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Spring Plunger

Spring Loaded Plunger Supplier

Spring loaded plunger supplier - screw-in plungers with steel nose or plastic tip, in four load classes from ultra light to extra heavy. Wholesale supply with OEM/ODM customization.

Specifications

Type
Spring loaded plunger (screw-in)
Type codes
Steel nose: THLSW / THLW / THW / THXW; plastic tip: THLSK / THLK / THHK / THXK
Load classes
Ultra light, light, heavy, extra heavy
Materials
Body SUS304; pin SUS440C (55 HRC min) or polyacetal; spring SUS631
Operating temperature
-30 to 260 C (steel nose); -30 to 80 C (plastic tip)
Customization
OEM/ODM to drawing or sample
Brand
SKN Fastener Co., Ltd.
Origin
Made in Shenzhen, China
Quotation
Send drawing or sample to sales@sknfastener.com

Overview

A spring loaded plunger holds parts with a spring pin: the pin presses into a mating groove to position or lock a part, and compresses when the part moves past. The range covers four load classes - ultra light, light, heavy, and extra heavy - in steel nose and plastic tip versions.

Available Sizes and Options

Steel nose types THLSW, THLW, THW, and THXW; plastic tip types THLSK, THLK, THHK, and THXK, covering ultra light to extra heavy loads. Tell us the thread size, length, load class, and quantity - custom versions are manufactured from your drawing under our OEM/ODM service.
Spring loaded plunger types, materials, and operating temperature.
Spring loaded plunger parameters: steel nose and plastic tip types with materials and operating temperature

Type
Load class
Body material
Pin material
Pin hardness
Spring material
Operating temperature (C)
THLSW
Ultra light
SUS304
SUS440C
55 HRC min
SUS631
-30 to 260
THLW
Light
SUS304
SUS440C
55 HRC min
SUS631
-30 to 260
THW
Heavy
SUS304
SUS440C
55 HRC min
SUS631
-30 to 260
THXW
Extra heavy
SUS304
SUS440C
55 HRC min
SUS631
-30 to 260
THLSK
Ultra light
SUS304
Polyacetal
-
SUS631
-30 to 80
THLK
Light
SUS304
Polyacetal
-
SUS631
-30 to 80
THHK
Heavy
SUS304
Polyacetal
-
SUS631
-30 to 80
THXK
Extra heavy
SUS304
Polyacetal
-
SUS631
-30 to 80

Materials and Finishes

Steel nose types: SUS440C pin with a hardness of 55 HRC or higher. Plastic tip types: polyacetal pin. Body: SUS304 stainless steel. Spring: SUS631. Operating temperature: -30 to 260 C for steel nose types, -30 to 80 C for plastic tip types.

Applications

Positioning, indexing, and latching functions where a defined spring force holds a part in place. SKN fasteners serve six industries: manufacturing, aviation equipment, industrial equipment, medical devices, stage and entertainment, and the marine industry.

Buyer FAQs

Q: What information do you need to quote?
A: The type (steel nose or plastic tip), load class, thread size, length, and quantity. A drawing or sample speeds everything up.
Q: Can you manufacture from a drawing or sample?
A: Yes. Send the drawing or sample and we manufacture to match under our OEM/ODM service.
Q: Do you supply bulk orders worldwide?
A: Yes. We supply B2B customers, wholesalers, and OEM clients worldwide from Shenzhen with export packing.

Why SKN

Advantages you can measure

Three strengths built into every pin SKN Fastener ships.

01 / Precision tolerances1

Precision tolerances, reliable resetting

The center core and ball socket are fitted with precise tolerances and rigorously tested over a hundred thousand times to guarantee accurate resetting.

Tolerance & resetting
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02 / Wide range of sizes2

A hundred sizes in routine stock

Our routine stock includes a hundred different sizes to suit different applications and occasions.

Size range
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03 / Customized solutions3

Non-standard dimensions, worry-free

A vast historical database supports worry-free customization for non-standard dimensions.

Customization
Get a quote
CNC Lathe Workshop Clean

Custom manufacturing

OEM and ODM, made to your drawing.

Send your drawing or sample. We quote, manufacture, and ship from our own CNC workshop in Shenzhen.

CNC turning

Precision parts machined on CNC lathes in-house.

To your drawing

Dimensions, threads, and features per your specification.

Wholesale supply

Production runs for B2B customers worldwide.

Get a quote

Buyer FAQs

Questions buyers ask before they order

Quick answers about quoting, OEM/ODM, minimum order, and shipping.

Not sure which pin fits your application? Send us a message and our team will help.

Explore more

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