What Size Set Screw Does The Ya515a Require?

The YA515A set screw size is 1/4 Drive 1-11/16. It is a locking knurled extension tool.

Flat Point Set Screw

One example of a flat point set screw is the M6-1 x 10, Socket Set Screw, Flat Point, Alloy Steel, Unbrako 45H, Black Oxide. This particular screw has a metric system of measurement, a thread pitch of 11, a right-hand thread direction, and a hex key size of 3mm. It meets or exceeds BS 4168, ASME B18.3.6M, DIN 913, and ISO 4026 standards.

Another example is the M8-1.25 x 25, Socket Set Screw, Flat Point, Alloy Steel, Unbrako 45H, Black Oxide. This screw also has a metric system of measurement, a thread pitch of 1.25, a right-hand thread direction, and a hex key size of 4mm. Like the previous screw, it meets or exceeds the same standards: BS 4168, ASME B18.3.6M, DIN 913, and ISO 4026.

Cup Point Set Screw

The cup point set screw is the most common type of set screw head style. It features a hex drive at one end and a cup-shaped indentation at the other. The thin edge of the cup end digs into the contact surface, providing high holding power. This makes it useful for fast permanent and semi-permanent placement, and it can be used on both soft and hard surfaces.

Materials

Applications

The cup point set screw is found in many assemblies containing rotating features such as wheels, collars, gears, or pulleys. They are used to lock these components onto a shaft and prevent movement. The cup point set screw is extremely versatile and can be used in both permanent and semi-permanent installations.

Dimensions

When selecting a cup point set screw, it is important to consider the diameter, length, and tip to determine the best fit for your task. They are available in a wide range of diameters and lengths and can be purchased in standard or metric sizes.

Comparison to Other Set Screws

Compared to other set screws, such as flat point or oval point set screws, the cup point set screw offers higher holding power due to its cup-shaped edge that "cuts" into the surface material for extra gripping power. This makes it suitable for applications where a strong hold is required, and some indentation on the surface is acceptable.

Oval Point Set Screw

An oval point set screw is a type of screw where the tip has an oval shape. This shape minimises potential surface damage at the contact site, as the oval shape doesn't dig into the shaft. Instead, there is only minimal contact. This minimal contact allows for adjustments to be made without loosening the screw, as the area of the tip that touches the surface can be gentle or firm while still retaining holding power.

When selecting a set screw, it is important to consider the diameter, length, and tip in order to determine the best fit for your task. Set screws come in a range of sizes, with small diameter screws using a numbering system from 0 to 12, and large diameter screws using fractional sizing.

Dog and Half Dog Set Screw

Dog set screws feature an extended blunt tip at the bottom, while half dog set screws have a shorter tip. The tip of the screw is secured within the groove of the fastener, which assists in the rotation of the shaft. Despite the rotation, the set screw retains compression, keeping the objects in place and secure.

When selecting a dog or half dog set screw, it is important to consider the diameter, length, and tip size to ensure it fits your specific application. Additionally, the set screw size chart can be confusing due to the presence of many numbers and terms. The standard sizes for set screws include small diameter and large diameter classifications. Small diameter set screws use a numbering system ranging from 0 to 12, while large diameter set screws use fractional sizing, with sizes ranging from 1/4 to 3/4.

It is worth noting that the right set screw type is crucial for effective fastening. Other types of set screws include flat, cup, and oval, each serving different purposes and suitable for different surfaces.

Cone Point Set Screw

A cone point set screw is a type of screw with a sharp, cone-shaped point that wedges into the contact material. This feature gives it the strongest torsional and axial holding power of all the set screw styles. They are typically used in permanent settings, but they can also be used as a pivot or hanger.

One example of a cone point set screw is the YA515A, which has a sharp point that can be used to create a strong hold. The specific dimensions and size of the YA515A set screw are not readily available, but it is important to refer to a set screw size chart to ensure the correct size is selected for your project.

When choosing a set screw, it is important to consider the type of surface you are working with. For flat surfaces, flat point and cup set screws are typically used. If you want to minimise surface damage, an oval point set screw may be a better option. Additionally, the set screw size matters as it determines how much the screw can anchor or hold the shafts it is fastening.

Frequently asked questions