Blind bolts

Question 1

What are the two types of Blind bolts used in the RNZAF

What are the two types of structural fastener

Answer 1

Blind Bolt and Jo Bolt

Hi lok and Lok bolt

Question 2

What is grip range

Answer 2

The variation in total material thickness that the fastener can successfully pass through and clamp up

Question 3

Whan are Jo bolts used

Answer 3

In high strength applications where access to only one side of the material is possible

Question 4

What are the installation inspections of JO bolts (5)

Answer 4

Looseness -Torque applied in anti clockwise

Head flushness

Break-off limits

gaps under head

Collar inspections

Question 5

Describe JO bolt P/N NAS 1669-3L04

Answer 5

NAS- Manufacturing standard

1669- Headshape, material, Nom/oversize

-3 Diameter in 1/16

L- self locking

-4 Length in 1/16

Question 6

How are Blind bolts and Jo bolts installed

Answer 6

Jo built use a torque wrench kits

Blind bolts use Gun