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    45 Products
    About Composites
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    Compare our offering of composites to find the right material for you.

    Multipurpose Flame-Retardant Garolite G-10/FR4 Rectangular Tubes

    Image of Product. Front orientation. Garolite. Multipurpose Flame-Retardant Garolite G-10/FR4 Rectangular Tubes.
    These rectangular tubes are flame retardant, machinable, and electrically insulating. They’re made of epoxy resin, making them good for use with printed circuit boards, insulating washers, and transformer components. With low moisture absorption, these tubes are often used as thermal insulators. Made with fiberglass fabric reinforcement, they’re strong and easier to machine than other glass cloth phenolics. Garolite G-10/FR4 is also called epoxy-grade industrial laminate and phenolic.
    Outside
    Inside
    Temp.
    36"
    Wd.
    Wd. Tolerance
    Ht.
    Ht. Tolerance
    Wd.
    Ht.
    Min.
    Max.,
    ° F
    Tensile Strength
    Impact Strength
    Hardness
    For Use
    Outdoors
    Mil. Spec.
    Each
    0.063" Thick Wall
     
    Green
    2.156"-0.015" to 0.015"1.156"-0.015" to 0.015"2.03"1.03"Not Rated26532,000 psi to 40,000 psi
    (Excellent)    		5.5 ft·lbf/in to 12 ft·lbf/in
    (Excellent)    		Rockwell M100
    (Extra Hard)    		YesMIL-I-24768/2700000000000000
     
    1/8" Thick Wall
     
    Green
    3/4"-0.015" to 0.015"3/4"-0.015" to 0.015"1/2"1/2"Not Rated26532,000 psi to 40,000 psi
    (Excellent)    		5.5 ft·lbf/in to 12 ft·lbf/in
    (Excellent)    		Rockwell M100
    (Extra Hard)    		YesMIL-I-24768/270000000000000
    1"-0.015" to 0.015"7/8"-0.015" to 0.015"3/4"5/8"Not Rated26532,000 psi to 40,000 psi
    (Excellent)    		5.5 ft·lbf/in to 12 ft·lbf/in
    (Excellent)    		Rockwell M100
    (Extra Hard)    		YesMIL-I-24768/270000000000000
     
    1/4" Thick Wall
     
    Green
    1 5/8"-0.015" to 0.015"1 1/4"-0.015" to 0.015"1 1/8"3/4"Not Rated26532,000 psi to 40,000 psi
    (Excellent)    		5.5 ft·lbf/in to 12 ft·lbf/in
    (Excellent)    		Rockwell M100
    (Extra Hard)    		YesMIL-I-24768/270000000000000
     

    Structural FRP Fiberglass Square Tubes

    Image of Product. Front orientation. Fiberglass. Structural FRP Fiberglass Square Tubes.
    Use these FRP fiberglass square tubes as an alternative to wood in structural applications. Made of fiberglass-reinforced polyester, they are strong and lightweight.
    Outside
    Inside
    5 ft. Long
    10 ft. Long
    Wd.
    Wd. Tolerance
    Ht.
    Ht. Tolerance
    Wd.
    Ht.
    Straightness
    Tolerance
    Color
    Temp. Range,
    ° F
    Tensile Strength
    Impact Strength
    Hardness
    For Use
    Outdoors
    Each
    Each
     
    1/8" Thick Wall (-0.019" to 0.019")
    1"-0.094" to 0.094"1"-0.094" to 0.094"3/4"3/4"0.03"/1 ft.Green-60 to 1407,000 psi to 30,000 psi (Good)4 ft·lbf/in to 25 ft·lbf/in (Excellent)Barcol 45 (Hard)Yes00000000000000000000000000
    1 1/4"-0.094" to 0.094"1 1/4"-0.094" to 0.094"1"1"0.03"/1 ft.Green-60 to 1407,000 psi to 30,000 psi (Good)4 ft·lbf/in to 25 ft·lbf/in (Excellent)Barcol 45 (Hard)Yes000000000000000000000000
    1 1/2"-0.094" to 0.094"1 1/2"-0.094" to 0.094"1 1/4"1 1/4"0.03"/1 ft.Green-60 to 1407,000 psi to 30,000 psi (Good)4 ft·lbf/in to 25 ft·lbf/in (Excellent)Barcol 45 (Hard)Yes000000000000000000000000
    1 3/4"-0.094" to 0.094"1 3/4"-0.094" to 0.094"1 1/2"1 1/2"0.03"/1 ft.Green-60 to 1407,000 psi to 30,000 psi (Good)4 ft·lbf/in to 25 ft·lbf/in (Excellent)Barcol 45 (Hard)Yes000000000000000000000000
    2"-0.094" to 0.094"2"-0.094" to 0.094"1 3/4"1 3/4"0.03"/1 ft.Green-60 to 1407,000 psi to 30,000 psi (Good)4 ft·lbf/in to 25 ft·lbf/in (Excellent)Barcol 45 (Hard)Yes000000000000000000000000
     
    1/4" Thick Wall (-0.038" to 0.038")
    2"-0.094" to 0.094"2"-0.094" to 0.094"1 1/2"1 1/2"0.03"/1 ft.Green-60 to 1407,000 psi to 30,000 psi (Good)4 ft·lbf/in to 25 ft·lbf/in (Excellent)Barcol 45 (Hard)Yes0000000000000000000000000
    2 1/2"-0.094" to 0.094"2 1/2"-0.094" to 0.094"2"2"0.03"/1 ft.Green-60 to 1407,000 psi to 30,000 psi (Good)4 ft·lbf/in to 25 ft·lbf/in (Excellent)Barcol 45 (Hard)Yes00000000000000000000000000
    3"-0.094" to 0.094"3"-0.094" to 0.094"2 1/2"2 1/2"0.03"/1 ft.Green-60 to 1407,000 psi to 30,000 psi (Good)4 ft·lbf/in to 25 ft·lbf/in (Excellent)Barcol 45 (Hard)Yes00000000000000000000000000
    4"-0.094" to 0.094"4"-0.094" to 0.094"3 1/2"3 1/2"0.03"/1 ft.Green-60 to 1407,000 psi to 30,000 psi (Good)4 ft·lbf/in to 25 ft·lbf/in (Excellent)Barcol 45 (Hard)Yes00000000000000000000000000
     
    3/8" Thick Wall (-0.056" to 0.056")
    6"-0.094" to 0.094"6"-0.094" to 0.094"5 1/4"5 1/4"0.03"/1 ft.Green-60 to 1407,000 psi to 30,000 psi (Good)4 ft·lbf/in to 25 ft·lbf/in (Excellent)Barcol 45 (Hard)Yes00000000000000000000000000
     

    Strut Channel

    Image of Product. Front orientation. Strut Channel Framing and Fittings. Strut Channel, Slotted Hole—1" Long Slot × 3/8" Wide Slot.
    Image of Product. Front orientation. Strut Channel Framing and Fittings. Strut Channel, Solid.

    Slotted Hole—1" Long

    Slot × 3/8" Wide Slot

    Solid

    Image of Attribute. Front orientation. Contains Annotated. Channel, Standard.
    The standard and most widely used size, this strut channel is 15/8" × 15/8". Endlessly versatile, use it to support electrical and plumbing systems, install HVAC equipment, build racks, and more. Combine with brackets, fasteners, and other fittings to create your structure.
    Slotted Hole—The most adaptable strut channel we offer. The slots make it easy to mount and reposition components without drilling.
    Solid—When strength matters most, choose solid strut channel. With no holes or slots, this channel is the least likely to bend or flex, even in long runs.
    80" Long—Use with beams spaced 6 ft. (72") apart. This length leaves 4" on each end to attach the channel to a beam.
    Fiberglass—Reduce the risk of shock and short circuits with channel that won’t transmit electricity. When conductivity isn’t a concern, fiberglass is good for areas exposed to chemicals and salt water.
    Channel
    Material
    Ht.
    Wd.
    Inside Channel
    Wd.
    Thk.
    1 ft.
    Long
    1 1/2 ft.
    Long
    2 ft.
    Long
    3 ft.
    Long
    4 ft.
    Long
    5 ft.
    Long
    6 ft.
    Long
    80"
    Long
    8 ft.
    Long
    10 ft.
    Long
    Slotted Hole—1" Long Slot × 3/8" Wide Slot
    Gray Fiberglass 1 5/8"1 5/8"3/4"0.16"0000000
    000000
    000000
    000000
    000000
    000000
    000000
    000000
    000000
    0000000
    0000000
     
    Solid
    Gray Fiberglass 1 5/8"1 5/8"3/4"0.188"0000000
    00000
    00000
    00000
    00000
    00000
    00000
    00000
    00000
    00000
    00000
     

    Arc-Resistant GPO3 Fiberglass Square Tubes

    Image of Product. Front orientation. Fiberglass. Arc-Resistant GPO3 Fiberglass Square Tubes.
    Route and insulate wire using these square fiberglass tubes, which fit better along edges and around corners than round tubes. Use them for electrical applications in humid locations. They’re arc and track resistant, and better electrical insulators than FRP fiberglass. Made of fiberglass-reinforced polyester, they’re also known as polyester-grade industrial laminate.
    Outside
    Inside
    5 ft. Long
    Wd.
    Wd. Tolerance
    Ht.
    Ht. Tolerance
    Wd.
    Ht.
    Straightness
    Tolerance
    Color
    Temp. Range,
    ° F
    Tensile Strength
    Impact Strength
    Hardness
    For Use
    Outdoors
    Each
    UL 94 V-0
     
    1/8" Thick Wall (-0.02" to 0.02")
    1 1/2"-0.062" to 0.062"1 1/2"-0.062" to 0.062"1 1/4"1 1/4"0.050"/1 ft.Red-50 to 26510,000 psi to 15,000 psi (Good)8.2 ft·lbf/in to 12 ft·lbf/in (Excellent)Barcol 50 (Hard)No00000000000000
     
    1/4" Thick Wall (-0.02" to 0.02")
    2"-0.062" to 0.062"2"-0.062" to 0.062"1 1/2"1 1/2"0.050"/1 ft.Red-50 to 26510,000 psi to 15,000 psi (Good)8.2 ft·lbf/in to 12 ft·lbf/in (Excellent)Barcol 50 (Hard)No00000000000000
     

    Wraparound Strut Channel Washers

    Image of Product. Front orientation. Contains Inset. Strut Channel Framing and Fittings. Wraparound Strut Channel Washers.
    Our most stable washers. Wings reach over the edges of strut channel so washers won’t twist when structures vibrate. They also free up your hands during installation—you don’t have to hold them while you insert a threaded rod and twist on a nut.
    Fiberglass—Pair with fiberglass strut channel for a structure that won’t transmit electrical current. When conductivity isn’t a concern, fiberglass is also good for areas exposed to chemicals and salt water.
    For
    Channel
    Each
    Package
    For Rod
    Dia.
    Ht.
    Wd.
    Each
    Pkg.
    Qty.
    Pkg.
    Fiberglass
    3/8"13/16", 1 5/8", 2 7/16", 3 1/4"1 5/8"000000000000050000000000000000
    1/2"13/16", 1 5/8", 2 7/16", 3 1/4"1 5/8"0000000000005000000000000000
     

    Corner Strut Channel Brackets

    Image of ProductInUse. Front orientation. Contains Annotated. Strut Channel Framing and Fittings. Corner Strut Channel Brackets, Style 3.
    Image of ProductInUse. Front orientation. Contains Annotated. Strut Channel Framing and Fittings. Corner Strut Channel Brackets, Style 16.

    Style 3

    Style 16

    The most common strut channel brackets. They create stronger connections than surface brackets and are less likely to twist or sway.
    Fiberglass—Pair with fiberglass strut channel for a structure that won’t transmit electrical current. When conductivity isn’t a concern, fiberglass is also good for areas exposed to chemicals and salt water.
    Lg.
    Material
    Shape
    (A)
    (B)
    Thk.
    Hole
    Dia.
    Fasteners
    Included
    Each
    Style 3
     
    For 1 5/8" Channel Width
    Gray Fiberglass 90° Angle4"4"1/4"3/8"No000000000000000
     
    Style 16
     
    For 1 5/8" Channel Width
    Gray Fiberglass 45° Angle2 5/16"3"1/4"9/16"No00000000000000
     

    Rectangular Strut Channel Nuts

    Image of Product. Front orientation. Contains Inset. Strut Channel Framing and Fittings. Rectangular Strut Channel Nuts.
    The most common strut channel nuts, these have serrated grooves that grip the lip inside channel.
    Fiberglass—Pair with fiberglass strut channel for a structure that won’t transmit electrical current. When conductivity isn’t a concern, fiberglass is also good for areas exposed to chemicals and salt water.
    For
    Channel
    Thread
    Size
    Ht.
    Wd.
    Ht.
    Pkg.
    Qty.
    Pkg.
    Gray Fiberglass
    1/4"-20
    		1 1/8", 1 1/2", 1 5/8"1 5/8"17/32"10000000000000
    3/8"-16
    		1 1/8", 1 1/2", 1 5/8"1 5/8"17/32"1000000000000
    1/2"-13
    		1 1/8", 1 1/2", 1 5/8"1 5/8"17/32"1000000000000
     

    Surface Strut Channel Brackets

    Image of ProductInUse. Front orientation. Contains Annotated. Strut Channel Framing and Fittings. Surface Strut Channel Brackets, Style 2.
    Image of ProductInUse. Front orientation. Contains Annotated. Strut Channel Framing and Fittings. Surface Strut Channel Brackets, Style 3.
    Image of ProductInUse. Front orientation. Contains Annotated. Strut Channel Framing and Fittings. Surface Strut Channel Brackets, Style 5.

    Style 2

    Style 3

    Style 5

    Image of ProductInUse. Front orientation. Contains Annotated. Strut Channel Framing and Fittings. Surface Strut Channel Brackets, Style 7.
    Image of ProductInUse. Front orientation. Contains Annotated. Strut Channel Framing and Fittings. Surface Strut Channel Brackets, Style 8.
    Image of ProductInUse. Front orientation. Contains Annotated. Strut Channel Framing and Fittings. Surface Strut Channel Brackets, Style 12.

    Style 7

    Style 8

    Style 12

    Image of ProductInUse. Front orientation. Contains Annotated. Strut Channel Framing and Fittings. Surface Strut Channel Brackets, Style 13.
    Image of ProductInUse. Front orientation. Contains Annotated. Strut Channel Framing and Fittings. Surface Strut Channel Brackets, Style 15.

    Style 13

    Style 15

    The simplest type of strut channel bracket, they're also the easiest to install and reconfigure. However, the connections are not as strong as corner brackets.
    Fiberglass—Pair with fiberglass strut channel for a structure that won’t transmit electrical current. When conductivity isn’t a concern, fiberglass is also good for areas exposed to chemicals and salt water.
    Lg.
    Material
    Shape
    (A)
    (B)
    Thk.
    Hole
    Dia.
    Fasteners
    Included
    Each
    Style 2
     
    For 1 5/8" Channel Width
    Gray Fiberglass Straight4 7/8"1 5/8"3/8"7/16"No000000000000000
     
    Style 3
     
    For 1 5/8" Channel Width
    Gray Fiberglass Straight6 1/2"1 5/8"3/8"7/16"No00000000000000
     
    Style 5
     
    For 1 5/8" Channel Width
    Gray Fiberglass Straight5 1/4"1 5/8"3/8"7/16"No00000000000000
     
    Style 7
     
    For 1 5/8" Channel Width
    Gray Fiberglass Cross4 7/8"4 7/8"3/8"7/16"No00000000000000
     
    Style 8
     
    For 1 5/8" Channel Width
    Gray Fiberglass Elbow3 1/4"3 1/4"3/8"7/16"No00000000000000
     
    Style 12
     
    For 1 5/8" Channel Width
    Gray Fiberglass Elbow4 7/8"4 7/8"3/8"7/16"No00000000000000
     
    Style 13
     
    For 1 5/8" Channel Width
    Gray Fiberglass Tee4 7/8"3 1/4"3/8"7/16"No00000000000000
     
    Style 15
     
    For 1 5/8" Channel Width
    Gray Fiberglass Tee4 7/8"4 7/8"3/8"7/16"No00000000000000
     
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