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Spring Plunger

Spring Plunger Manufacturer

Spring plunger manufacturer - stainless steel TS and carbon steel TSTG spring plungers in M3 to M12, with loads from 1 N to 50 N. Wholesale supply with OEM/ODM customization.

Specifications

Type
Spring plunger (screw-in)
Series
TS (stainless steel) and TSTG (carbon steel)
Thread sizes
M3, M4, M5, M6, M8, M10, M12
Load range
1 - 50 N by size
Materials
TS: SUS304 body, pin, spring; TSTG: S45C body and spring, SWP pin
Drive
Hex socket
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 plunger uses a spring-loaded pin in a threaded body. The body screws into a fixture with a hex socket drive, and the pin presses into a mating hole or groove to position, index, or hold a part. The TS series is stainless steel throughout; the TSTG series uses a carbon steel body. Sizes cover M3 to M12.

Available Sizes and Options

Fifteen standard length and load combinations from M3 to M12, with load values from 1 N to 50 N. Send the thread size, length, and quantity, or a drawing - custom versions are manufactured under our OEM/ODM service.
Spring plunger dimensions (mm) and load range (N). TS = stainless steel; TSTG = carbon steel.
Spring plunger sizes: M3 to M12 dimensions and load capacity chart

Model
M
L
S
d
B
Load min (N)
Load max (N)
TS / TSTG
M3
15
3
1
1.5
1
5
TS / TSTG
M4
10
2
1.6
2
2
8
TS / TSTG
M4
15
2
1.6
2
2
8
TS / TSTG
M5
12
2
2
2.5
3
12
TS / TSTG
M5
20
3
2
2.5
3
12
TS / TSTG
M6
12
3
2.5
3
5
15
TS / TSTG
M6
20
4
2.5
3
5
15
TS / TSTG
M6
20
3
3
3
5
15
TS / TSTG
M8
16
3
3.1
4
8
32
TS / TSTG
M8
25
5
3.1
4
8
32
TS / TSTG
M10
20
5
3.8
5
10
45
TS / TSTG
M10
25
5
3.8
5
10
45
TS / TSTG
M10
30
5
3.8
5
10
45
TS / TSTG
M12
30
5
5.5
6
12
50
TS / TSTG
M12
40
5
5.5
6
12
50

Materials and Finishes

TS series: SUS304 main body, pin, and spring - stainless steel throughout. TSTG series: S45C main body and spring with an SWP pin. Special materials and finishes follow your drawing.

Applications

Positioning, indexing, and detent functions on fixtures, jigs, dies, and machine parts. 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 series (TS or TSTG), thread size (M3 to M12), 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

Our product lines

Browse the full range - the catalog keeps growing.

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