GOST 10337-80 Screws with a cylindrical head and a sphere, captive accuracy class BScrews GOST 10337-80 – this product has a cylindrical head and a sphere, design allowing them not to fall out of the hole, they can connect several parts at once, it is fixed in the body of the fastener.
Description of the product design and its features
The design of the screw consists of a cylindrical head and a sphere and threaded on the rod. The requirements for the accuracy class are imposed on the products, the standard is provided by B.
The material of manufacture must have a strength class of 5.6; 5.8; 8.8; 10.9; 12.9. It can be both ordinary and stainless steel, and brass.
To use screws in an aggressive environment, various types of coatings are used – zinc, chromium, nickel and others, applied in various ways.
Screw GOST 10337-80.pdf
An example of a designation for a screw version 1 with a thread diameter of 8 mm, with a tolerance field of 6g, a length of 25 mm, strength class 5.8, uncoated:
Designation example: Screw M8 -6gх25.58 GOST 10337-80
The same, version 2, strength class 8.8, made of steel grade 35X, with a zinc coating 9 microns thick, chromated:
Designation example: Screw 2M8-6gх25.88.35X.019 GOST 10337-80
Product application areas
These screws are used in many industries. Increased demand for products, in particular, is observed in the aircraft and machine-building industries, as well as in construction, energy and metalworking, where they are used for reliable fastening of parts and metal structures.