Type

Name

Application

Example

Size range

Suitable temperature

Bolt strength depends on size

Surface treatment

Note

TOP-LOCK^® nut-style tensioners

(Standard)

Alternative to a standard nut

Applied in industries in need of bolt connection

M16-M160

-50°F to 500°F

450 to 700N/m ㎡ 60 to 100Ksi

According to requirements

Corresponding SB8 series bolt -type tensioner

TOP-LOCK^® nut-style tensioners

(High strength)

Used for 8grade bolt/screw

Same using environment with MSB, but higher intensity

M16-M160

-50°F to 500°F*

500 to 900N/m ㎡ 70 to 130Ksi

According to requirements

Corresponding SB12 series bolt -type tensioner

TOP-LOCK^® nut-style tensioners

(super High strength)

Used in high load

——

M16-M160

-50°F to 500°F

——

According to requirements

——

TOP-LOCK^® nut-style tensioners

(Compact)

Applicable to the highly constrained environment

Highly restricted a. hydraulic cylinder

b. shaft bracket c. piston connection
d. the base

M16-M160

-50°F to 500°F

250 to 400N/m ㎡ 35 to 60Ksi

According to requirements

——

TOP-LOCK^® nut-style tensioners

(Rolling machine)

Applies to 600 or 800 series rolling motor shaft coupling and brake wheel

——

M16-M160

-50°F to 500°F

——

According to requirements

——

TOP-LOCK^® nut-style tensioners

(Bearing locking)

Apply to directly replace the AN series bearing lock nut

——

AN6-AN950

Metric size available

-50°F to 500°F

——

According to requirements

——

TOP-LOCK^® nut-style tensioners

(Counter nut)

Suitable for jacking bolts need to protect the environment

——

M16-M160

-50°F to 500°F

——

According to requirements

——

TOP-LOCK^® screw

Can provide all kinds of materials

——

Specially made as required

-423°F to 1400F

——

According to requirements

——

TOP-LOCK^®

cross lock nut

Reciprocating compressor cross connection

——

Specially made as required

-50°F to 500°F

——

According to requirements

——

TOP-LOCK^® piston

lock nut

The piston rod connected to the piston

——

M16-M160

根据材料而定

——

According to requirements

——

TOP-LOCK^® force-measuring device

Testing bolt load

——

Specially made as required

According to material

——

According to requirements

——

TOP-LOCK^® bolt-style tensioners

Instead of 5 grade and B7grade bolt

Bolt connection in demanding industry

M16-M160

-50°F to 500°F

400 to 650N/m ㎡ 60 to 95Ksi

According to requirements

Corresponding MSB series nut -type tensioner

TOP-LOCK^® bolt-style tensioners

(High strength)

Instead of 8 grade high strength bolts

Similar to SB8, but strength stronger

M20-M90

-50°F to 500°F

500 to 850N/m ㎡ 70 to 125Ksi

According to requirements

Corresponding MSG series nut -type tensioner

TOP-LOCK^® bolt-style tensioners

(super high strength)

The highest intensity bolt with rare materials in the world at present

——

Specially made as required

According to material

——

According to requirements

——

SSJX

TOP-LOCK^® bolt-style tensioners

(Flush bolt)

Used for sink hole

Use occasions: a. gear box b. the blast furnace c. mining machinery d. the gear rack/stand e. sealing flange f. wind tunnel g. Machine h. weight machine

M16-M160

-50°F to 500°F

——

According to requirements

——

TOP-LOCK^® nut-style tensioners

(Flexible nut)

Release stress , avoid stress concentration, solve the problem of  nut locked

Flexible nut applied in hole.Increase the flexibility of bolt connection.Strong application in clamping length short condition.

M20-M160

-50°F to 500°F

450 to 700N/m ㎡ 60 to 100Ksi

According to requirements

Application with the MSB series nut type tensioner or SB8
Series bolt type tensioner

TOP-LOCK^®

high strength

Flexible nut

Suitable for high stress level

Similar to SX8, but strength stronger

M20-M160

-150°F to 500°F*

500 to 900N/m ㎡ 70 to 130Ksi

According to requirements

Application with the MSG series nut type tensioner or SB8
Series bolt type tensioner

TOP-LOCK^® nut-style tensioners

(Medium temperature)

Medium temperature super nut, feature: jackbolts amount small

Big stud: such as a. boiler feed pump b. boiler circulating pump
c. reactor heat d.exchanger

M20-M125

-50°F to 650°F

310N/m ㎡ 45kis based on the walls and the AS

According to requirements

TOP-LOCK^® nut-style tensioners

(Medium temperature)

Medium temperature super nut, feature: jackbolts amount small

M24-M160

-50°F to 650°F

According to requirements

TOP-LOCK^® nut-style tensioners

(Medium temperature)

Tall type medium temperature super nut for limited installation space location

A.points situation B.the steam turbine

C.Engine D.Pump E. compressor

M24-M100

-50°F to 650°F

310N/m ㎡ 45kis based on the walls and the AS

According to requirements

Applied to the diameter of limited space

TOP-LOCK^® high temperature anti-corrosion type

Suitable for limited space

——

M16-M160

-423°F to 1200F*

——

According to requirements

——

TOP-LOCK^® high temperature anti-corrosion type

Suitable for high temperature environment

——

M24-M160

-423°F to 1200F*

——

According to requirements

——

TOP-LOCK^® stainless steel anti-corrosion type

Suitable for high temperature, corrosion, anti magnetic environment

——

M16-M160

-423°F to 1200F*

——

According to requirements

——

High temperature bolt system

TOP-LOCK^® power plant only

Applicable the connection for the valve, steam, the steam turbine flange

——

Specially made as required

to1.200°F

——

According to requirements

——

Nuclear power series

TOP-LOCK^® nuclear power only

Applicable the connection for valve, pump, heater, flange

——

Specially made as required

to650°F

——

According to requirements

——

Nickel copper alloy

TOP-LOCK^® admiralty only

Apply to ships and the sea water environment

——

Specially made as required

——

According to requirements

——

Anti-corrosion type

TOP-LOCK^®

special materials

Apply to wet and chemical corrosion environment

——

Specially made as required

Suitable material

——

According to requirements

——

EB type

TOP-LOCK^® expansion bolt

Direct replacement coupling fitting bolt

——

Specially made as required

Suitable material

——

According to requirements

——

Tool

TOP-LOCK^® special tools

Special torque wrench and socket

——

Specially made as required

N/A

——

According to requirements

——

lubricant

TOP-LOCK^®

special lubricants

JL - G and JL - M lubricant

——

N/A

1200°F,650°F

——

According to requirements

——

The end cap

TOP-LOCK^® end cap

Plastic end cap

——

Specially made as required

——

According to requirements

——

Note: the above are nomal models.In addition, TOP - LOCK ^® provides more widely design and locking solutions, including other special material and design.They can be applied to more harsh conditions of the special working environment,
if necessary, please consult our TOP - LOCK ^® China technical services office. TOP -LOCK ^® Chinatechnical support: 0411-86800996.