PowerPoint ® Presentation Unit 8 Fastening Systems Nails Staples Screws Bolts Hollow-wall Fasteners Solid Concrete or Solid Masonry Wall Anchors Drive

PowerPoint® PresentationPowerPoint® Presentation

Unit 8Unit 8Fastening SystemsFastening Systems

Nails • Staples • Screws • Bolts • Hollow-wall Fasteners • Solid

Concrete or Solid Masonry Wall Anchors • Drive Pins and Studs •

Metal Connectors • Adhesives

Nails • Staples • Screws • Bolts • Hollow-wall Fasteners • Solid

Concrete or Solid Masonry Wall Anchors • Drive Pins and Studs •

Metal Connectors • Adhesives

Unit 8 — Fastening SystemsUnit 8 — Fastening Systems

Nails are available with a variety of heads and points. Flat‑head, diamond‑point nails are most often used by carpenters.

Nails are available with a variety of heads and points. Flat‑head, diamond‑point nails are most often used by carpenters.


Nail sizes are designated by a number and the letter d.

Nail sizes are designated by a number and the letter d.


Common nails are used most often for rough work.

Common nails are used most often for rough work.


Masonry nails can be driven into concrete or masonry.Masonry nails can be driven into concrete or masonry.


Nails used for finish work are thinner than nails used for rough work.Nails used for finish work are thinner than nails used for rough work.


Wood fibers apply pressure against the shank of a nail to give a nail its holding power.

Wood fibers apply pressure against the shank of a nail to give a nail its holding power.


Nail shanks are smooth or deformed. Deformed-shank nails provide greater holding power than smooth-shank nails.

Nail shanks are smooth or deformed. Deformed-shank nails provide greater holding power than smooth-shank nails.


Heavy-duty staples may be used to fasten plywood sheathing and subflooring. Light-duty and medium-duty staples are used for attaching molding and other interior trim.

Heavy-duty staples may be used to fasten plywood sheathing and subflooring. Light-duty and medium-duty staples are used for attaching molding and other interior trim.


The three basic screw heads are flat, round, and oval. Screw heads have a single slot or a recessed cross slot.

The three basic screw heads are flat, round, and oval. Screw heads have a single slot or a recessed cross slot.


A higher gauge number for screws indicates a thicker screw shank.A higher gauge number for screws indicates a thicker screw shank.


Shank and pilot holes should be drilled when using wood screws to fasten wood pieces together.

Shank and pilot holes should be drilled when using wood screws to fasten wood pieces together.


Self-tapping screws are used to fasten metal framing members to each other by tapping their own threads in the metal members.

Self-tapping screws are used to fasten metal framing members to each other by tapping their own threads in the metal members.


Concrete screws are used to fasten items to concrete, brick, or block without the use of additional anchors.

Concrete screws are used to fasten items to concrete, brick, or block without the use of additional anchors.


Machine screws have greater holding power than other types of screws that fasten to metal.Machine screws have greater holding power than other types of screws that fasten to metal.


Panel screws have coarse, steeply pitched threads in comparison to a standard wood screw.

Panel screws have coarse, steeply pitched threads in comparison to a standard wood screw.


Construction-grade panel screws are driven with coil or strip-type screwguns. An extension handle may be added to screwguns to allow carpenters to install screws from an upright position.

Construction-grade panel screws are driven with coil or strip-type screwguns. An extension handle may be added to screwguns to allow carpenters to install screws from an upright position.


Bolts are used to fasten together heavy wood and metal materials.Bolts are used to fasten together heavy wood and metal materials.


The shank below a carriage bolt head is embedded in the wood.

The shank below a carriage bolt head is embedded in the wood.


Lag bolts are often used when it is inconvenient or impossible to use a nut‑and‑bolt arrangement. A washer should be used under the head.

Lag bolts are often used when it is inconvenient or impossible to use a nut‑and‑bolt arrangement. A washer should be used under the head.


A toggle bolt consists of a machine screw with a winged nut that folds back as the assembly is pushed through a predrilled hole in the wall.

A toggle bolt consists of a machine screw with a winged nut that folds back as the assembly is pushed through a predrilled hole in the wall.


When installing a screw anchor in a hollow wall, the shield spreads and flattens against the interior of the wall as the screw is tightened.

When installing a screw anchor in a hollow wall, the shield spreads and flattens against the interior of the wall as the screw is tightened.


A wallboard anchor does not require predrilling prior to installation.

A wallboard anchor does not require predrilling prior to installation.


A rotary hammer may be used to drill holes in concrete.

A rotary hammer may be used to drill holes in concrete.


A variety of masonry and core bits are used with electric drills or rotary hammers.

A variety of masonry and core bits are used with electric drills or rotary hammers.


Light‑duty plastic anchors are used with wood or sheet‑metal screws.

Light‑duty plastic anchors are used with wood or sheet‑metal screws.


Light‑duty lead‑alloy anchors are used with lag, wood, or sheet-metal screws. Light‑duty lead‑alloy anchors are used with lag, wood, or sheet-metal screws.


The anchor of a hammer-driven anchor expands as the expander pin is driven in.

The anchor of a hammer-driven anchor expands as the expander pin is driven in.


The slotted head of a hammer‑driven nylon anchor allows the expander pin to be removed with a screwdriver.

The slotted head of a hammer‑driven nylon anchor allows the expander pin to be removed with a screwdriver.


When installing a lag bolt expansion shield, the shield expands as the bolt is tightened.

When installing a lag bolt expansion shield, the shield expands as the bolt is tightened.


A heavy-duty machine bolt expansion shield expands at both ends to distribute the anchor load.

A heavy-duty machine bolt expansion shield expands at both ends to distribute the anchor load.


The expansion plug expands the steel anchor as the anchor is driven onto the plug with a setting tool.The expansion plug expands the steel anchor as the anchor is driven onto the plug with a setting tool.


A self-drilling anchor is placed in a special chuck head that is adapted for a rotary hammer.A self-drilling anchor is placed in a special chuck head that is adapted for a rotary hammer.


Stud-bolt anchors are used to fasten large equipment and machinery in place.

Stud-bolt anchors are used to fasten large equipment and machinery in place.


A tube-dispensed adhesive is mixed as it is forced down the nozzle.

A tube-dispensed adhesive is mixed as it is forced down the nozzle.


A glass capsule adhesive anchor consists of a sealed glass capsule containing an adhesive mixture, a stud-bolt, and a nut and washer.

A glass capsule adhesive anchor consists of a sealed glass capsule containing an adhesive mixture, a stud-bolt, and a nut and washer.


Many types of drive pins and studs can be driven into concrete or other masonry.Many types of drive pins and studs can be driven into concrete or other masonry.


A powder‑actuated tool is used to drive pins and studs into concrete or other masonry.

A powder‑actuated tool is used to drive pins and studs into concrete or other masonry.


Metal fasteners are used to tie together members in wood‑framed construction.

Metal fasteners are used to tie together members in wood‑framed construction.


Metal connectors aligned vertically provide the most effective protection against wind damage.

Metal connectors aligned vertically provide the most effective protection against wind damage.


Manufacturers may stamp the recommended nail size on metal connectors.

Manufacturers may stamp the recommended nail size on metal connectors.


A pneumatic nailer must be fitted with a hole-locating mechanism or be designed to expose the nail tip when driving nails for metal connectors.

A pneumatic nailer must be fitted with a hole-locating mechanism or be designed to expose the nail tip when driving nails for metal connectors.


Machine bolts may be used to fasten metal connectors to larger framing members.

Machine bolts may be used to fasten metal connectors to larger framing members.


Glue is used to help fasten the joints of cabinets.Glue is used to help fasten the joints of cabinets.


Tubes that fit into caulking guns are the most convenient way of applying mastics to the upper surfaces of floor joists.

Tubes that fit into caulking guns are the most convenient way of applying mastics to the upper surfaces of floor joists.


When panels with tongue-and-groove edges are used for a subfloor, the mastic is placed in the grooves and on top of the joists.

When panels with tongue-and-groove edges are used for a subfloor, the mastic is placed in the grooves and on top of the joists.

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PowerPoint ® Presentation Unit 8 Fastening Systems Nails Staples Screws Bolts Hollow-wall Fasteners Solid Concrete or Solid Masonry Wall Anchors Drive