Aircraft Rivets: Types, Materials, Markings & Removal

1/32 is the unit to measure x part of the rivet

diameter (head size)

1/16 is the unit to measure x part of the rivet

the tail (shank)

MS

military standard

ANS

air force navy standard

What rivet is an A rivet

No head marking

1100 aluminum

Non structural

What rivet has no head marking

A rivet - 1100 aluminum

F rivet - corrosion resistant steel

What rivet is made with 1100

A rivet - Aluminum

No head marking

What rivet is known as an AD rivet

Dimple head marking

2117 metal

"shop" rivet

What rivet is made with 2117 metal?

AD rivet

dimple marking

what rivet is made with a 5056 alloy

B rivet

Raised cross

ONLY used on magnesium

What rivet is known as a B rivet

5056 metal

raised cross "baptist"

only used on magnesium

What rivet has a head with a raised cross

5056 magnesium alloy

B rivet "baptist"

Raised cross

Magnesium only

What rivet has a raised dot?

2017

icebox rivet

very hard

D rivet

What letter rivet has a 2017 metal

D rivet

dot on the head

ICEBOX RIVET

Must be heat treated

What rivet is a D rivet

2017

Raised dot

ice box rivet

heat treated

What two rivet metals need to be heat treated?

2017 & 2024

D & D-D

What rivet uses 2024 metal?

D-D rivet

2 raised “dashes”

Icebox

Heat Treating

What rivet is knows as a D-D rivet?

2024 metal

Heat Treated

“Double - Dash”

ice box rivet

What letter rivet uses a 7050 metal?

E rivet

Raised Circle

Very strong

used to replace 2024 E rivet

What rivet is an E rivet

7050

very strong

raised circle

replaces 2024 D-D rivet

what rivet has a raised circle

7050 metal

E rivet

replaces 2024 rivets

ice box rivet

What rivet is a Steel rivet

F Rivet,

only in firewall or exhaust

no head marking

What is known as a F rivet

Steel rivet

no head marking

in firewall or exhaust

Monel Rivet

2 recessed dimples

used in place of corrosion resistant steel (F-rivet) where lower shear strength is not detriment.

What * is a 426 counter sunk hole drilled

100*

What rivet is a AN426AD 5-4

Air force navy

countersunk head shape

2117 alloy "A Dimple"

5/32 head size

4/16 shank length

What rivet is a MS20470E6-7

Military Standard

universal head

E rivet, circle, 7050

6/32 head width

7/16 shank length

What is a blind/pop rivet?

low strength

non structural use

What is a mechanical locking rivet?

Blind rivet.

Designed to prevent rivet from falling out.

Has internal grove in stem to lock it in

Stem shears off.

What is a Friction lock Rivet?

Cherry Friction Lock most common

must go 1 size larger when replacing

Strength depends on stem

stem is held in by friction

shears off

Pop rivet

What is a Huck Lock?

Type of mechanical lock rivet

almost never used

requires special tooling

What is a Cherry Lock rivet?

common.

locked in place with locking groove in stem.

Replaces solid rivet size for size.

requires specialty tools.

mechanical lock rivet.

What is an Olympic Lock rivet?

Light weight

mechanical lock rivet

locks with groove in stem

requires special tooling

What is a Cherry Max Rivet

Mechanically locking rivet.

Most common.

Can replace rivets size for size.

One puller for all rivet sizes.

What Mechanically locking rivet doesent require a special tool?

Cherry Max rivets only require one tool to pull for all sizes of rivets.

How much do you upsize by with a Friction Lock Rivet when replacing?

1/32

What is the most common Friction Lock rivet?

Cherry Friction Lock

What are the most common Mechanically locking rivets.

1. Cherry max

2. Cherry lock

What mechanically locking rivet is barely used? And why?

Huck Lock (expensive tooling)

What is a High Shear Rivet?

Has 2 piece fastener.

Fastener consists of:

1. pin with groove

2. metal collar smashed into pin groove space

air gun head attachment molds collar into shape.

What is a Special Fastener?

Holds like bolt without tension load.

High strength & close tolerance.

What is a Lock Bolt?

Special Fasteners

Same strength as a bolt.

Secured with crushed collar.

Requires hammer/pull gun.

What is a Hi-Lock?

2 piece hexagonal groove.

Allen head inserted to prevent stem rotation.

Wrench used to torque down rivet until stem shears off.

Special Fastener.

REQUIRES ALLEN & WRENCH

What is a Cherry Buck?

Bi-Metal fastener .

95 KSI shear strength shank.

Titanium tail.

600F* temperature threshold .

Low backside profile.

One Piece.

What is a Taper Lock?

STRONGEST FASTENER.

Bottom tapered, as tightened tapered end forced into material.

What is a Hi-Tigue?

All benefits of a Hi-Lock.

Bead fastening design that enhances fatigue performance.

Allen wrench + wrench required.

Works similar to taper lock but material is smashed into instead rivet instead of shearing.

What is the strongest fastener?

Taper Lock

What special fastener has only one piece.

Cherry Buck

What are three special fasteners

Taper lock

Cherry buck

Hi lock

Lock Bolt

Hi-Tigue

What fastener goes to 600*F

Cherry buck

What are the 3 steps that need to be done before using an icebox rivet?

1. Heat treatment

2. Quenching

3. aging

What rivet head is 442?

Flat

What rivet head is 430?

round

What rivet head is 455?

Brazier head