Customized 201 stainless steel self-tapping screw GB846 cross countersunk head screw 3/4

We have more than ten years of production experience in the screw industry, the main products are: BSW screws, anti-skid washers, heavy-duty nuts, fine-tooth thickened hexagon nuts, bottom hole 8.75 outer diameter, spring washer standard specifications and models, bakelite ball nuts, umbrella head round Head screws, GB882 pins, Hexagon bolts, screws and nuts, large cap cap screws GB109 aluminum flat head rivets, Hexagon nuts, Hexagon wall screws, bolts and nuts, wholesale galvanized, nylon screws and other fasteners, due to product materials and specifications There are different prices, please contact us if necessary.

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Product introduction

Screw Specifications

Screw head table

screw suitable for a variety of tools is a single-structure threaded part, including a screw body and a screw head. The outer surface of the screw body is processed with an external thread 1, and the outer side of the screw head is formed by six screw heads. Prismatic, the top surface of each edge of the outer hexagonal prism is a boss, between each boss is an end face groove 4, and the middle of each boss is provided with an end face hole 3; the inner side of the screw head is formed by six screw heads. The side surface 5 forms an inner hexagonal prism hole, and the bottom of the inner hexagonal prism hole is processed with a cross groove 13 .

Customized 201 stainless steel

Screw (pinyin: luógǎn, English: screw): a cylinder with a spiral groove cut on the outer surface or a cone cut with a tapered spiral groove. The screw has a different head, the head is called an external hexagon screw. There are others, such as large flat screws, socket head screws and so on.

Self-tapping screws


The technical solution adopted by Guangdong Yueluo Hardware Industry Co., Ltd. to solve its technical problems is a special pull rivet for railway freight cars, which has a pull rivet body and a collar. The rod body is composed of polished rod section, locking ring groove section and tail thread section from top to bottom. Protectors are provided at the tail thread section to prevent rust and bad teeth in the tail thread section during use. , collision deformation, etc. Specifically, the tail thread segment has an external thread or an internal thread, and the protective member is a nut or a bolt.

Phillips countersunk head screws

Screw, some people call it screw (screw), screw (screw rod). In fact, the screw is a general term, and the screw and the screw rod are different from each other. Screws are generally called wood screws; they are the ones with a pointed end at the front and a larger pitch. They are generally used to fasten wooden and plastic parts. The screw rod is a machine screw (machine screw), which is the kind of flat head at the front end. The pitch is small and uniform. It is generally used to fasten metal and machine parts.


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