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FASTENERS Screws, Nails, Bolts…. SCREWS AND NAILS Must resist corrosion Rusting fasteners retain moisture Rot Bleed.

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Presentation on theme: "FASTENERS Screws, Nails, Bolts…. SCREWS AND NAILS Must resist corrosion Rusting fasteners retain moisture Rot Bleed."— 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 Specify “hot-dipped” Avoid electro-galvanized (bright) Stainless steel Polymer-coated

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

9 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.

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

11 NAILS Avoid splitting wood Stagger nails

12 NAILS Avoid splitting wood Blunt tips

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

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16 NAILS TYPES

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

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

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

20 Screws Phillips/Square/Slotted combo head

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

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

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

24 LedgerLOK screws https://www.youtube.com/watch?v=_U1Hwg ttA5Y&index=7&list=PLA1B52C642BD821 67

25 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

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

27 BOLT TYPES Standard Bolt Hex or square head

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

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30 ThruLOK bolts UGchttp://www.youtube.com/watch?v=ApIDd39L UGc

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

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

33 IPE Clips

34 https://www.youtube.com/watch?v=vJsfpp 0gt8Mhttps://www.youtube.com/watch?v=vJsfpp 0gt8M

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

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

37 JOINING MATERIALS Butt joint: two boards simply butted together

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

39 Bevel cut: angle cut along thickness JOINING MATERIALS

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

41 Rip cut: cutting with the grain JOINING MATERIALS

42 Table saw for rip cuts Table saw sensor https://www.youtube.com/watch?v=No_h6iVI FgAhttps://www.youtube.com/watch?v=No_h6iVI FgA

43 JOINING MATERIALS Splicing: overlap or gusset over beam

44 CONNECTORS Joist hanger: connecting joist to ledger

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46 CONNECTORS Post saddle: fastening beam to top of post

47 CONNECTORS Angle bracket: support under wood (steps)

48 CONNECTORS Rafter ties: connect joist to beam


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