Common Standards for Hex Socket Head Cap Screws: DIN 912 and ISO 4762

Hex socket head cap screws are commonly used in machinery, equipment, and other applications where a compact screw head is needed. DIN 912 and ISO 4762 are two common standards for this type of fastener. As a professional manufacturer of hex socket screws, Xinchi Fastener Factory takes a closer look at these two standards below.

Hex Socket Head Cap Screws

DIN 912 Hex Socket Head Cap Screw Standard

DIN 912 is a commonly referenced German standard for hex socket head cap screws. It specifies the basic dimensions of the screw, including the head, internal hex socket, thread, and length.

A DIN 912 hex socket head cap screw has a cylindrical head and an internal hexagon drive, allowing it to be installed with an Allen key or hex bit.

Hex Socket Head Cap Screws

ISO 4762 Hex Socket Head Cap Screw Standard

ISO 4762 is the international standard for hexagon socket head cap screws. Its specifications are very similar to DIN 912, so the two are often treated as equivalent in many applications.

However, when a drawing or customer specification requires a particular standard, it is better to confirm the exact requirements before ordering.

Hex Socket Head Cap Screws

DIN 912 Hex Socket Head Cap Screw Dimensions and Tolerances

The size of a DIN 912 hex socket head cap screw is not determined only by its thread diameter and length. Head diameter, head height, socket size, and dimensional tolerances are also important.

Tolerances indicate the acceptable range of variation during production. They help ensure that the screw fits properly and that the hex socket can be used correctly during assembly.

For applications with strict dimensional requirements, the relevant standard and technical drawing should always be checked.

Hex Socket Head Cap Screws

DIN 912 Hex Socket Head Cap Screws from Xinchi Fastener Factory

Xinchi Fastener Factory has been manufacturing fasteners since 2007. The factory has 102 cold heading machines and a daily production capacity of more than 10 million pieces.

Xinchi Fastener Factory

The completed new factory covers approximately 30,000 square meters, with two six-story buildings. With its large production capacity, Xinchi can supply DIN 912 hex socket head cap screws, button head hex socket screw, flat head socket cap screws, hopper feed T-nuts, DIN 1624 T-nuts, threaded insert nuts, rivet nuts, washers, and other fasteners for different customer requirements.