The Difference Between Bolt And Screw

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Phillips pan head M4x5mm machine screws
Carbon steel zinc-plated(trivalent) phillips pan head machine screws. M4x5mm size,qulified and environmental friendly screws.
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M3x8mm pan head machine screws
This is QT M3x8 mm pan head machine screws. Standard is Gb818-85 pan head screw.
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Tooth type cotter pins
We warmly welcome our customers to inquire us about the non-stand screws with special specifications
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Stainless steel spring pins
Stainless steel spring pins main material is carbon steel, stainless steel, you can also choose other materials for customization.
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Combination Oval Head Crown Screws with Plastic Spring Washer
Crown Screws M5*16/20, M6*16/20 Captive Nuts Server Rack Mount Nut Steel Nickel plated Stainless steel
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latest news

QT screws factory participate in ISLE 2020 Exihibition

With the improvement of the epidemic situation, our company began to gradually resume offline exhibitions. ISLE 2020 Exihibition time: 31.8.2020-3.9.2020 Our booth No. is: 11-11 C73 This exhibition will be attended by many of our domestic customers. Some foreign customers may not attend due to the outbreak. But we all communicate well online. Our company focuses on the production of machine screws and self-tapping screws since 2001. We attach importance to the quality and rely on the quality to survive. We are leadership Chinese screws factory. 1. High quality: We have 18 years' experience in the fastener field. our company have strong team and high precision machine to guaantee quality. 2. First-class service: We have good after-sales service. If there is any questions after you getting the products, please do not hesitate to contact us. We will try my best to sove problem for you. 3. Competitive price: As a manufacturer, we can directly sell the product to you with low price without any middleman. 4. Excellen solution: Provide OEM/ ODM service for you. 5. Delivery control: All order will be controlled under the delivery period

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QT factory ISO9001 annual audit-2020

QT factory ISO9001 annual audit-2020 QT factory mainly produces M1-M6 machine screws and self tapping screws. Applications: electronics equipments,machinery equipments, LED display assembly,furnitures, home appliances etc. Quality is the life of factory, QT is always in pursuit of better quality and service to clients. Its managment system is under ISO9001 standard. Today,QT has become the industry leadership factory . With good reputation in both destomic and overseas markets.

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7x24h screws factory service available

QT factory is professionally producing all kinds of machine screws, self tapping screws. Especially in small screws zone, QT can meet our clients' needs 100%. We provide 7x24h screws service, enquiry will be replied within 2 hours. We provide an online dedicated support and our highly professional customer service representives are available. QT factory, your wise screws factory choice!!!

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QT ISO9001:2015 annual audit successfully

On July 13th ,this date which is QT 2019 annual ISO9001:2015 audit day. The below pictures are QT staffs and the official staff from the regulator . ISO 9001:2015 specifies requirements for a quality management system when an organization: a) needs to demonstrate its ability to consistently provide products and services that meet customer and applicable statutory and regulatory requirements b) aims to enhance customer satisfaction through the effective application of the system, including processes for improvement of the system and the assurance of conformity to customer and applicable statutory and regulatory requirements. All the requirements of ISO 9001:2015 are generic and are intended to be applicable to any organization, regardless of its type or size, or the products and services it provides. As a qualified screws factory ,QT always put quality first,quality is our soul. As a reliable and trustworthy screws factory, we alywas try our best to meet customers' needs.

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Valve equipment screws from QT Fastener

QT company has over 17 years screws producing experience. All kinds of machine screws are available. The below pictures are our application for the valve machines/equipment. Combination screws like GB9074.7 are widely and high volume used in the valve machines. Picture 01 Picture 02 Picture 03

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QT screws are highly appreciated by our clients

QT screws has over 17 years production experience. Widely used in various industries. QT machine screws are highly appreciated by our clients. (soldering machine/equipment) The below contents are pictures from one of our long-term cooperation customers. We are their golden supplier for many years. Picture 01-(screws on the circuit board) Picture 02-(client plant) Picture 03-(client plant)

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Visiting our customer as a golden supplier

On 18th Feb.,we were invited to one of our customers as their golden supplier. (pictures of certificates) The below pictures showed some of their starring products.(laser machine screws） Our QT Fastener factory is mainly professionally supplying all kinds of screws,bolts ,nuts etc. We are golden supplier of many our customers. We always try our best to provide qualified products and competitive price. That is why more and more customers choosing us . Choosing QT, Choosing reliable partner,let's get a brighter future together.

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Spring Festival holiday schedule

Dear customers， Our company Spring Festival holiday will be during 2019.1.28-2019.2.12 . Totally 15 days. We will deliver the goods on Feb. 13. We sincerely apologize for the inconvenient to you. You can connect us when you need our help. HP/Skype/Whatsapp/Wechat:+8618813901699 Kindly note this pls. Shenzhen Qiangtuo Fastener Co., Ltd

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World market of QT

Shenzhen QT Fastener Co.,Ltd marketing network is all over the world. QT mainly supplys standard and non-standard fasteners pieces: machine screws,self tapping screws,nuts,bolts,pins,rivets,retaining rings etc. Over 17 years of factory producing experience, diversified standard and non-standard pieces can meet different needs,Get top quality machine screws,self tapping screws,etc,welcome to here.

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QT team members in Shenzhen International marathon

CMSK OTC 2017 Shenzhen Baoan Intrenational Marathon One of the athletes of QT. All of the athletes take group photos QT fastener factory is producing various kinds of screws such as:machine screws,self tapping screws,nuts and bolts,washers,pins,rivets,retaining ring etc. Welcome your enquiry.

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The difference between bolt and screw

2018-08-06

Screws are just common parlance of fasteners. They include: bolts, screws, nuts, as long as there are threaded fasteners, screws, nuts, bolts and screws all have one thing in common: they all have threads.
Tips for distinguishing bolts from screws:
1. Bolts: mechanical parts, cylindrical, threaded fasteners with nuts.A type of fastener consisting of a head and a cylinder with an external screw, which is fitted to a nut and used to fasten two parts connected with a through hole.This connection is called bolt connection.If the nut is removed from the bolt, the two parts can be separated, so the bolt connection is a removable connection.
2. Screw: it is also a type of fastener composed of the head and screw, which can be divided into three types according to the usage: machine screw, set screw and special purpose screw.The machine screw is mainly used for the fastening of the part with a fixed thread hole, and the fastening connection between the part with a through hole, without the need of nut fitting (this kind of connection is called screw connection, which is also a detachable connection;It can also be fitted with a nut for a fastening connection between two parts with a through hole.The setting screw is mainly used to fix the relative position between two parts.Special purpose screws such as ring screws for lifting parts.
Classification purposes
1. Bm =1d double-end stud is generally used for connection between two steel fasteners;Bm =1.25d and bm=1.5d are generally used for connection between cast iron and steel.Bm =2d twin-end stud is generally used for connecting aluminum alloy and steel.The preceding connector is provided with an inner threaded hole, while the latter one is provided with a through hole.
2. The threads at both ends of the equal length double-end stud shall be matched with the nuts and washers for two connecting parts with through-holes.

One end of the welding stud is welded on the surface of the connecting piece, and the other end (threaded end) passes through the connecting piece with the through hole, and then the washer is put on, and the nut is turned on, so that the two connecting parts become one whole.

Our company is a professional Screws supplier,such as metric machine screws,Self Tapping Screws etc.Want to get high quality Screws?welcome to our factory!

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The difference between bolt and screw