Joining techniques

Fasteners

In the electrical trade, there will be the requirement to join or fix components to a range of different materials. A wide variety of fasteners is available for these purposes. Following is a selection of some of the common fasteners used:

• screws and metal threads
• bolts, nuts and washers
• masonry fasteners
• nails
• hollow wall anchors
• pop rivets.

Screws and metal threads

 

The above diagram shows the following screws from left to right. (Commencing from the top left hand corner.)

1. Coach screw
2. Countersunk (CSK) head particle board screw, Pozi drive
3. Bulge head dry wall screw, Pozi drive
4. Pan head self-tapping screw, Phillips
5. Pan head self tapping screw, slotted
6. Hexagon head, self-drilling screw
7. Hexagon head, self-drilling screw for metal
8. Button head, self-drilling screw for metal, Pozi drive
9. CSK head, metal thread, Pozi drive
10. CSK head, metal thread, slotted
11. Pan head, metal thread, Phillips
12. Pan head, metal thread, slotted
13. Cheese head, metal thread, slotted.

 

Bolts, nuts and washers

 

The above diagram shows the following nuts, bolts, and washers from left to right.

1. Hexagon head (engineers) bolt and nut
2. Cup head bolt
3. Allen head bolt
4. Hexagon nut
5. Flange nut
6. Wing nut
7. Nylon lock (Nyloc™) nut
8. Flat washer
9. Spring washer
10. Star washer (external)
11. Cup washer.

 

Masonry fasteners

 

The above diagram shows the following masonry fasteners from left to right.

1. Hexagon head sleeve anchor
2. CSK head sleeve anchor
3.  Lock in (Loxin™) nut
4. Nylon nail in anchor, round head
5.  Wall plug
6. Powder actuated stud.

 

Nails

 

The above diagram shows the following nails from left to right.

1. Bullet head nail 
2. Flat head nail
3. Cement coated bullet head nail
4. Flat head galvanised clout
5. Galvanised decking nail
6. Staple
7. Wriggle (joining) nail.

Hollow wall anchors

 

The above diagram shows the following hollow wall anchors from left to right.

1. Toggle anchor
2. Winged wallboard anchor
3. Hollow wall anchor, plastic
4. Threaded wallboard anchor.

Pop rivets

 

Selection of pop rivets of various sizes.