## How is the length of a countersunk rivet measured?

In applications involving countersunk head rivets, overall length is measured from the top of the head to the end of the shank.

## What is the grip length of a rivet?

Grip range is the thickness of material that a rivet can effectively fasten. If, for example, you are attaching two quarter-inch pieces of metal together, you will require a pop rivet with a minimum grip of at least a half-inch.

**How do I choose a rivet length?**

The length of the rivet should be equal to the thickness of both objects you are fastening, plus 1.5 times the diameter of the rivet’s stem. 3/32” (2MM) FOR UP TO 3/32” (2MM) THICKNESS. 1/8” (3MM) FOR UP TO 1/8” (3MM) THICKNESS. 1/4” (6MM) FOR UP TO 1/4” (6MM) THICKNESS.

### How do you measure grip range on a rivet?

Take a rivet with part number ABA68, 6/32” or 3/16” is the diameter and 8/16” or ½” is the grip range. Therefore, the rivet with part number ABA68 is a 3/16” X ½” rivet. Let’s say you have a rivet but no number to figure out what size it is.

### What is the smallest allowable rivet pitch?

Transverse pitch is the perpendicular distance between rivet rows. It is usually 75 percent of the rivet pitch. The smallest allowable transverse pitch is 21⁄2 rivet diameters. The smallest allowable transverse pitch is 21⁄2 rivet diameters.

**What is the minimum spacing for a single row of aircraft rivets?**

What is the minimum spacing for a single row of aircraft rivets? Three times the diameter of the rivet shank.

## Why is grip length important?

Grip length is the length of the unthreaded portion of a bolt’s shank. That’s an important consideration when dealing with critical applications that involve a lot of vibration, namely, aircraft and racing.

## What determines rivet spacing?

Rivet spacing (pitch) depends upon several factors, principally the thickness of the sheet, the diameter of the rivets, and the manner in which the sheet will be stressed. Rivet spacing should never be less than three times the rivet diameter.

**How to calculate the length of a rivet shank?**

The total length of the rivet equals the grip length plus the amount of rivet shank needed to form a proper shop head. The latter equals one and a half times the diameter of the rivet shank. Where A is total rivet length, B is grip length, and C is the length of the material needed to form a shop head, this formula can be represented as A = B + C.

### When to use a countersunk rivet on an airplane?

The countersunk rivet is primarily intended for use when aerodynamics smoothness is critical, such as on the external surface of a high-speed aircraft. Typically, rivets are fabricated from aluminum alloys, such as 2017-T4, 2024-T4, 2117-T4, 7050, and 5056.

### How are solid shank rivets classified in the military?

Solid rivets are classified by their head shape, by the material from which they are manufactured, and by their size. Identification codes used are derived from a combination of the Military Standard (MS) and National Aerospace Standard (NAS) systems, as well as an older classification system known as AN for Army/Navy.

**What are the features of a hi Lok grip scale?**

Hi-Lok grip scale features. Measures Grip Length. These Hi-Lok® grip scales feature two rulers for measuring grip length. These rulers can measure grip length of Hi-Lok® fasteners with a countersink, or with a protruding head.