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Bolt tensioners are devices designed to put in a precise tension to a bolt – a form of threaded fastener. They put in force to maintain or create tension. Bolts are especially beneficial when dealing with larger steel and lumber, due to its wider flexibility of length, strength, and capacity to more or less permanently fasten the joint. Besides the clear strength issue, the problem with screws and nails is the formidable eventuality of them becoming loose after some time, and endangering the strength of joints. This is particularly true if joints are subject to movement and vibration.

In general, bolts do not always face the above problem because of their ability to create what is known as a pre-load, or a clamping load, which if large enough will establish joint integrity. The pre-load is the power that is produced when torque is used to a bolt to secure two or more objects together. The bolt is pulled into tension as torque is connected, while the affixed parts experience compression.
This tension, as sure as it's within the elastic limit of the bolt, uses an equal and inverse force (Hooke's Law) called the tensile stress which tries to to keep the bolt from loosening and releasing. Above all secondary safety measures such as washers and lock nuts, the basic principle of tightening the bolt down well enough to begin with, is the most extremely important factor in preventing untimely loosening.
The Green Book directory of bolt tensioners is promptly accessible for consumers in need of the item. The site attempts to provide a broad rundown of organizations, manufacturers, suppliers and wholesalers of high quality bolt related products to sustain consumer needs.

Gold Listings

VF Fastening Systems Pte Ltd

10 Admiralty St #06-80 North Link Bldg S(757695)

VF Fastening System Pte Ltd was started business since 1992 as one of the general trading company in the country. Our company was ...

Basic Listings

Sun Hydraulics Pte Ltd

2 Yishun Ind St 1 #04-15 Northpoint BizHub S(768159)

Sun Hydraulics Pte Ltd serves as a sales and marketing company for Sun Run products. We supply and distribute wide range of hydraulic jacks ...

Eriks Pte Ltd

8 Tuas Loop S(637344)

ERIKS is a leading, innovative supplier to the process industry and to equipment manufacturers, fulfilling the twin roles specialist and ...

Immco Pte Ltd

7030 Ang Mo Kio Ave 5 #04-07 Northstar @ AMK S(569880)

Immco Pte Ltd was established in June 2000 as a supplier of all kinds of spares for heavy equipment. We also act as a commission agent for ...

Immco Sdn Bhd

G-7, Blk Dahlia 2 Jln Zahir 6 Taman Malim Jaya 75250 Melaka, West Malaysia

During these years, Immco also ventured into the hydraulic sector. In the year 2004, our branch in Malaysia; Immco Sdn Bhd (formerly known ...

Nord-Lock Pte Ltd

2 International Business Pk #03-36 The Strategy S(609930)

Nord-Lock Group is a world leader in bolt securing systems. Our one of a kind combination of expertise and products give us the privileged ...

Petracarbon Pte Ltd

1001 Jln Bt Merah #04-01/06 Redhill Ind Est S(159455)

Petracarbon Private Limited was established in July 1982 with a current staff strength of 200. Established as a Design Manufacturer of ...

RO-QUIP Asia Pacific Pte Ltd

20 Woodlands Link #03-22 S(738733)

RO-QUIP provides engineered rotating equipment and reliability centered maintenance products and services to the offshore, refining, ...

SPX Hydraulic Technologies

20 Pioneer Cres #06-01 S(628555)

With approximately $5 billion in annual revenue, U.S.-based SPX is a multi-industry manufacturing leader operating in more than 35 ...

Tri-Star Industries Pte Ltd

36 Joo Koon Rd S(628988)

Tri-Star Industries is a global leader in the manufacture and supply of engineered, specialty, high criticality and MASTERCOTE corrosion ...

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