如何测量一个螺栓

 如何测量一个螺栓

Dan Hart

测量汽车使用的螺栓

下面是测量螺栓的方法。

关于测量螺栓尺寸的警告

螺栓柄直径和螺纹间距是两个最重要的测量值。 测量螺栓柄直径对于公制和SAE螺栓都是一样的,它是从螺纹开始测量的。 但是螺纹间距是不同的,见下一段。 扳手尺寸指的是六角头。 扳手尺寸是大多数DIY者弄错的地方。 扳手尺寸不是螺栓柄直径尺寸。 换句话说,一个螺栓需要10毫米套筒的螺栓直径并不是10毫米!

如何测量柄部直径

测量柄部直径的最好方法是使用游标卡尺。 只需将卡尺在螺栓的螺纹部分滑动,然后读取刻度。 你可以从亚马逊或任何家庭中心商店购买不到10美元的游标卡尺。 没有卡尺? 你可以使用螺栓模板。 没有模板但有螺栓的螺母? 带着它去五金商店。

什么是螺纹间距?

螺纹间距的定义对于SAE和公制紧固件是不同的。 对于美国/SAE螺纹紧固件,测量每英寸的螺纹数。 对于公制紧固件,测量两个螺纹之间的距离,单位是毫米。

如何测量螺纹

使用游标卡尺或螺纹节距规。 只需插入 然后从量具上读出螺距。

测量螺栓长度

测量从六角头正下方到螺栓顶端的螺栓长度。

螺栓尺寸是如何表示的

用于美国/SAE螺栓

1/4″-20 x 3″是指1/4″螺栓直径,每英寸20个螺纹(TPI),3″长度

用于公制螺栓

M10 x 1.0 x 30表示公制10毫米螺栓直径,1毫米间距,30毫米长度

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粗螺栓和细螺栓之间有什么区别?

粗螺栓每英寸有较少的螺纹(美国/SAE)或两个螺纹之间有较宽的间隙(公制)。 反过来说,细螺纹每英寸有较多的螺纹或两个螺纹之间有较短的间隙。

精细螺栓螺纹的优点

- 对于两个相同直径和长度的螺栓,螺纹间距越细,螺栓就越坚固。 细螺纹有更多的表面积与配合的螺纹收缩,并且有更大的柄部直径(细螺纹没有切入轴那么深)。

- 细螺纹螺栓允许在需要调整的地方进行更多的调整

- 攻打细螺纹更容易,因为它们对螺栓轴或配合材料的切割没有那么深。

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- 细螺纹需要较小的扭矩来产生与粗螺纹螺栓相同的预紧力。

- 细螺纹不象粗螺纹螺栓那样容易松动

精细螺栓螺纹的劣势

- 由于更多的材料与配合表面接触,它们更容易被咬伤。

- 细牙螺栓在最初啮合时更容易被剥离。

- 细牙螺栓必须比粗牙螺栓长,以达到相同的保持力。

©, 2019

Dan Hart

Dan Hart is an automotive enthusiast and expert in car repair and maintenance. With over 10 years of industry experience, Dan has honed his skills through countless hours of working on various makes and models. His passion for cars started at a young age, and he has since turned it into a successful career.Dan's blog, Tips for Car Repair, is a culmination of his expertise and dedication to helping car owners tackle common and complex repair issues. He believes that everyone should have some basic knowledge of car repair, as it not only saves money but also empowers individuals to take control of their vehicle's maintenance.Through his blog, Dan shares practical and easy-to-follow tips, step-by-step guides, and troubleshooting techniques that break down complex concepts into understandable language. His writing style is approachable, making it suitable for both novice car owners and experienced mechanics seeking additional insights. Dan's goal is to equip his readers with the knowledge and confidence needed to tackle car repair tasks on their own, thus preventing unnecessary trips to the mechanic and expensive repair bills.In addition to maintaining his blog, Dan also runs a successful auto repair shop where he continues to serve his community by providing high-quality repair services. His dedication to customer satisfaction and his unwavering commitment to deliveringexceptional workmanship has earned him a loyal customer base over the years.When he's not under the hood of a car or writing blog posts, you can find Dan enjoying outdoor activities, attending car shows, or spending time with his family. As a true car enthusiast, he is always up-to-date with the latest industry trends and eagerly shares his insights and recommendations with his blog readers.With his vast knowledge and genuine passion for cars, Dan Hart is a trusted authority in the field of car repair and maintenance. His blog is an invaluable resource for anyone looking to keep their vehicle running smoothly and avoid unnecessary headaches.