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FASTENERS Screws, Nails, Bolts….

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Presentation on theme: "FASTENERS Screws, Nails, Bolts…."— Presentation transcript:

1 FASTENERS Screws, Nails, Bolts…

2 SCREWS AND NAILS Must resist corrosion
Rusting fasteners retain moisture Rot Bleed

3 SCREWS AND NAILS Galvanized coating Stainless steel Polymer-coated
Specify “hot-dipped” Avoid electro-galvanized (bright) Stainless steel Polymer-coated

4

5 NAILS Hardened piece of wire
Nail length is given in “Penny Weight” (d) 10d nail is about 3” long

6 PENNYWEIGHT? The term penny originated in England many years ago. Ten penny, four penny, etc., nails got their names from the fact that one hundred nails of that size cost ten pence, four pence, etc. Today penny represents the definite length of a nail measured from the head to the tip of the point. The term penny is still shown by using the English Pence sign d.

7 NAILS Avoid splitting wood Using pilot holes Flat side with the grain

8 NAILS Avoid splitting wood Stagger nails

9 NAILS Avoid splitting wood Blunt tips

10 NAILS TYPES Smooth shank Ring shank Spiral shank Truss nail
Duplex nail (temporary)

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12

13 NAILS TYPES

14 SCREWS Greater resistance to withdrawal than nails
Specify size by diameter and length ¼” x 3” ½” x 6”

15 PILOT HOLE for SCREWS Pilot hole should be smaller than screw
Thread bites into wood Size of shank

16 SCREWS TYPES Wood Screws Standard Phillips Square drive
Star (torx) drive

17 Screws Phillips/Square/Slotted combo head

18 SCREWS TYPES Sheet metal screws Tip acts like a drill bit

19 SCREWS TYPES Lag Screws Heavy duty screw used when bolts cannot
2 to 8” long

20 Lag Screws Installation
Drill about half the length of lag screw Hammer to bottom of pilot hole Thread the rest of way

21 LedgerLOK screws

22 BOLTS Better shear strength than nails and screws
Used in major structural joints Size: diameter and length Sizing length: 1” greater than the adjoining boards

23 PILOT HOLE for BOLTS Pilot hole same size as bolt
Thread bite not required Washers and nut required to fasten

24 BOLT TYPES Standard Bolt Hex or square head

25 BOLT TYPES Carriage bolt
Round head with square base for better look and feel Tighten until square base crunches in

26

27 ThruLOK bolts

28 BOLT TYPES Expanding or wedge bolt Attaching to concrete or brick
Flange fits into pre-drilled hole

29 Wedge Bolt Installation
Drill depth of bolt with concrete bit Hammer bolt to bottom of pilot hole Avoid flattening threads Tighten nut and washer

30 IPE Clips

31 IPE Clips

32 JOINING MATERIALS Direct nailing: 1” from end and side

33 JOINING MATERIALS Toenailing: 45-degree through end of board

34 JOINING MATERIALS Butt joint: two boards simply butted together

35 JOINING MATERIALS Miter cut: angle cut across width
Miter joint: 90-degree corner

36 JOINING MATERIALS Bevel cut: angle cut along thickness

37 JOINING MATERIALS Cross cut: cutting across the grain at 90-degree

38 JOINING MATERIALS Rip cut: cutting with the grain

39 Table saw for rip cuts Table saw sensor

40 JOINING MATERIALS Splicing: overlap or gusset over beam

41 CONNECTORS Joist hanger: connecting joist to ledger

42

43 CONNECTORS Post saddle: fastening beam to top of post

44 CONNECTORS Angle bracket: support under wood (steps)

45 CONNECTORS Rafter ties: connect joist to beam


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