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Extension springs with turnable bolt

Our series of extension springs features an advanced design that both ensures a specific tensile force when extended to a precise length but also maximizes the use of the extension spring's full potential without the risk of breaking. This specially developed model with a turnable bolt is perfect for efficiently utilizing the extension spring's extendable length (Ln). Our extension springs with turnable bolts can either be mounted directly into a threaded hole or equipped with a custom end fitting, providing flexibility and adaptability across various applications.

Measurements between2.5 - 6 mm

Measurements between17 - 50 mm

Measurements between85 - 310 mm

Measurements between0.49 - 30 N/mm

Measurements between128 - 619 mm

Measurements between208 - 1611 N

108 itemsd (mm)Do (mm)L0 (mm)d2R (N/mm)Ln (mm)Fn (N)
An Extension Spring with Turnable Bolt
6439

ESTB 2.5X17X85

161 in stock

2.5

17

85

M6

5.9

128

288

An Extension Spring with Turnable Bolt
6440

ESTB 2.5X17X115

3 in stock

2.5

17

115

M6

3.8

182

289

An Extension Spring with Turnable Bolt
6443

ESTB 2.5X17X145

57 in stock

2.5

17

145

M6

2.8

235

286

An Extension Spring with Turnable Bolt
6444

ESTB 2.5X17X175

25 in stock

2.5

17

175

M6

2.3

289

296

An Extension Spring with Turnable Bolt
6445

ESTB 2.5X17X205

24 in stock

2.5

17

205

M6

1.9

342

294

An Extension Spring with Turnable Bolt
6446

ESTB 2.5X17X235

24 in stock

2.5

17

235

M6

1.6

396

292

An Extension Spring with Turnable Bolt
6447

ESTB 2.5X20X85

4 in stock

2.5

20

85

M6

3.4

150

250

An Extension Spring with Turnable Bolt
6448

ESTB 2.5X20X115

24 in stock

2.5

20

115

M6

2.2

216

251

An Extension Spring with Turnable Bolt
6449

ESTB 2.5X20X145

43 in stock

2.5

20

145

M6

1.6

282

248

An Extension Spring with Turnable Bolt
6450

ESTB 2.5X20X175

8 in stock

2.5

20

175

M6

1.3

347

253

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