McMaster-Carr logo
    Forward
    Enter e-mail addresses in the fields below
    Message
    Cancel
    Print
    How can we improve?
    Comments
    E-mail address (if you would like a response)
    102 Products

    Titanium Unthreaded Spacers

    Image of Product. Front orientation. Spacers. Titanium Unthreaded Spacers.
    Get the strength you need without the extra weight. These spacers are lightweight like aluminum and resist corrosion better than stainless steel. They’re also nonmagnetic, have a high strength-to-weight ratio, and are about 40% lighter than steel spacers.
    Ultra-Corrosion-Resistant Grade 2 Titanium—Because Grade 2 titanium is 99% pure, it's even more corrosion resistant than other common titanium grades, such as Grades 5 and 9. These spacers are good for use in chemical-processing facilities since they stand up to strong acids and other harsh chemicals.
    Lg.
    For Screw
    Size
    ID
    Specs.
    Met
    Each
    Ultra-Corrosion-Resistant Grade 2 Titanium
     
    3/16" OD
    1/8"No. 4
    		0.115"ASTM B34898721A11200000
    3/16"No. 4
    		0.115"ASTM B34898721A1130000
    1/4"No. 4
    		0.115"ASTM B34898721A1140000
     
    1/4" OD
    1/8"No. 8
    		0.166"ASTM B34898721A1010000
    3/16"No. 8
    		0.166"ASTM B34898721A1020000
    1/4"No. 8
    		0.166"ASTM B34898721A1030000
    5/16"No. 8
    		0.166"ASTM B34898721A1040000
    3/8"No. 8
    		0.166"ASTM B34898721A1050000
    7/16"No. 8
    		0.166"ASTM B34898721A1600000
    1/2"No. 8
    		0.166"ASTM B34898721A17000000
    5/8"No. 8
    		0.166"ASTM B34898721A18000000
    3/4"No. 8
    		0.166"ASTM B34898721A19000000
    7/8"No. 8
    		0.166"ASTM B34898721A21000000
    1"No. 8
    		0.166"ASTM B34898721A22000000
    1 1/8"No. 8
    		0.166"ASTM B34898721A23000000
    1 1/4"No. 8
    		0.166"ASTM B34898721A24000000
    1 3/8"No. 8
    		0.166"ASTM B34898721A25000000
    1 1/2"No. 8
    		0.166"ASTM B34898721A26000000
    1 5/8"No. 8
    		0.166"ASTM B34898721A27000000
    1 3/4"No. 8
    		0.166"ASTM B34898721A28000000
    1 7/8"No. 8
    		0.166"ASTM B34898721A29000000
    2"No. 8
    		0.166"ASTM B34898721A31000000
     
    5/16" OD
    1/8"No. 10
    		0.192"ASTM B34898721A1150000
    3/16"No. 10
    		0.192"ASTM B34898721A1160000
    1/4"No. 10
    		0.192"ASTM B34898721A1170000
     
    1/2" OD
    1/8"1/4"
    		0.252"ASTM B34898721A1060000
    3/16"1/4"
    		0.252"ASTM B34898721A1070000
    1/4"1/4"
    		0.252"ASTM B34898721A1080000
    5/16"1/4"
    		0.252"ASTM B34898721A1090000
    3/8"1/4"
    		0.252"ASTM B34898721A11100000
    7/16"1/4"
    		0.252"ASTM B34898721A37000000
    1/2"1/4"
    		0.252"ASTM B34898721A38000000
    5/8"1/4"
    		0.252"ASTM B34898721A39000000
    3/4"1/4"
    		0.252"ASTM B34898721A41000000
    7/8"1/4"
    		0.252"ASTM B34898721A42000000
    1"1/4"
    		0.252"ASTM B34898721A43000000
    1 1/8"1/4"
    		0.252"ASTM B34898721A44000000
    1 1/4"1/4"
    		0.252"ASTM B34898721A45000000
    1 3/8"1/4"
    		0.252"ASTM B34898721A46000000
    1 1/2"1/4"
    		0.252"ASTM B34898721A47000000
    1 5/8"1/4"
    		0.252"ASTM B34898721A48000000
    1 3/4"1/4"
    		0.252"ASTM B34898721A49000000
    1 7/8"1/4"
    		0.252"ASTM B34898721A51000000
    2"1/4"
    		0.252"ASTM B34898721A52000000
     

    Twist-Resistant Rivet Nuts

    Image of Product. Front orientation. Rivet Nuts. Twist-Resistant Rivet Nuts.
    Image of Attribute. Front orientation. Contains Annotated. Rivet Nuts. Twist-Resistant Rivet Nuts.
    Ideal for parts that require frequent maintenance or disassembly, these rivet nuts won't spin out when you tighten or loosen a screw. Their ribbed body digs into material to prevent twisting.
    Install these nuts in a drilled or punched round hole using a rivet nut tool. Thread the rivet nut onto the mandrel, then grip the tool body with a wrench as you twist the tightening nut with a ratchet. Choose an air- or battery-powered tool for fast installation or to easily switch between many different nut sizes. Length is measured from under the flange.
    Ultra-Corrosion-Resistant Lightweight Grade 2 Titanium—Originally designed for Formula 1 race cars, these rivet nuts are 40% lighter than steel nuts yet strong enough for the highest stress applications. They resist everything from salt water to harsh acids.
    Rivet Nuts
    Wrench-Driven
    Tools
    Flange
    Thread Size
    Drill Bit
    Size
    For Material
    Thk.
    Body
    Dia.
    Lg.
    Installed
    Lg.
    Dia.
    Thk.
    Each
    Each
    Ultra-Corrosion-Resistant Lightweight Grade 2 Titanium
    10-32
    		19/64"
    		0.039" to 0.098"0.276"0.492"0.276"0.394"0.039"90597A1400000096349A203000000
    1/4"-20
    		25/64"
    		0.020" to 0.118"0.354"0.63"0.374"0.472"0.047"90597A1500000096349A30500000
    M5 x 0.8 mm7 mm
    		1 mm to 2.5 mm7 mm12.5 mm7 mm10 mm1 mm90597A110000096349A71300000
    M6 x 1 mm9 mm
    		0.5 mm to 3 mm9 mm16 mm9.5 mm12 mm1.2 mm90597A1200000096349A76400000
    M8 x 1.25 mm11 mm
    		1 mm to 3 mm11 mm17 mm9.5 mm14 mm1.3 mm90597A1300000096349A81500000
     

    Helical Threaded Inserts

    Image of Product. Pronged. Bottom orientation. Threaded Inserts. Helical Threaded Inserts, Pronged.

    Pronged

    Restore, reinforce, or create threads in metal. The tough coils on these inserts expand once installed to anchor in a tapped hole. Also known as Heli-Coil inserts, they're often used in engine heads and machinery housings where strong connections are critical. Unlike threadlocking inserts, you can remove and reuse them without them losing their strength.
    Installation requires a drill bit, a helical insert tap, and an installation tool.
    Pronged—The prong attaches to an installation tool for precise control as you drive inserts in. Remove the prong with a punch or break-off tool before inserting a screw.
    Ultra-Corrosion-Resistant Lightweight Titanium—The best of both worlds, these inserts are lightweight yet strong enough for the highest stress applications. They resist acids and salt water better than nickel or stainless steel inserts.
    Inserts
    Through-Hole
    Taps
    Closed-End
    Hole Taps
    Installation
    Tools
    Prong
    Break-Off Tools
    Thread
    Size
    Installed
    Lg.
    Drill Bit
    Size
    For Max.
    Hole Dia.
    Pkg.
    Qty.
    Pkg.
    Each
    Each
    Each
    Each
    Pronged
     
    Ultra-Corrosion-Resistant Lightweight Titanium
    4-40
    		0.112"31 Ga.
    		0.120"193332A2300000091709A10100000091709A40700000090261A151000000092955A1030000000
    4-40
    		0.168"31 Ga.
    		0.120"193332A234000091709A1010000091709A4070000090261A15100000092955A103000000
    4-40
    		0.224"31 Ga.
    		0.120"193332A238000091709A1010000091709A4070000090261A15100000092955A103000000
    6-32
    		0.207"25 Ga.
    		0.150"193332A244000091709A1020000091709A4160000090261A15200000092955A10500000
    6-32
    		0.276"25 Ga.
    		0.150"193332A246000091709A1020000091709A4160000090261A15200000092955A10500000
    10-24
    		0.190"5 Ga.
    		0.206"193332A249000091709A1040000091709A4280000090261A15400000092955A10900000
    10-24
    		0.285"5 Ga.
    		0.206"193332A255000091709A1040000091709A4280000090261A15400000092955A10900000
    10-24
    		0.380"5 Ga.
    		0.206"193332A259000091709A1040000091709A4280000090261A15400000092955A10900000
    10-32
    		0.285"13/64"
    		0.203"193332A265000091709A1510000091709A4310000090261A16100000092955A10900000
    10-32
    		0.380"13/64"
    		0.203"193332A268000091709A1510000091709A4310000090261A16100000092955A10900000
    1/4"-20
    		0.250"H
    		0.266"193332A273000091709A1050000091709A4370000090261A15500000092955A11100000
    1/4"-20
    		0.375"H
    		0.266"193332A276000091709A1050000091709A4370000090261A15500000092955A11100000
    1/4"-20
    		0.500"H
    		0.266"193332A279000091709A1050000091709A4370000090261A15500000092955A11100000
    5/16"-18
    		0.312"Q
    		0.332"193332A2810000091709A1060000091709A4430000090261A15600000092955A113000000
    5/16"-18
    		0.469"Q
    		0.332"193332A285000091709A1060000091709A4430000090261A15600000092955A113000000
    5/16"-18
    		0.625"Q
    		0.332"193332A2900000091709A1060000091709A4430000090261A15600000092955A113000000
    3/8"-16
    		0.375"X
    		0.397"193332A2930000091709A1070000091709A4490000090261A15700000092955A115000000
    3/8"-16
    		0.562"X
    		0.397"193332A2960000091709A1070000091709A4490000090261A15700000092955A115000000
    3/8"-16
    		0.750"X
    		0.397"193332A299000091709A1070000091709A4490000090261A15700000092955A115000000
     
    Extraction Tools
    Remove installed helical inserts.
    For Pronged Helical Inserts—Place the tip into pronged inserts and lightly strike the tool’s head. Then, turn the tool counterclockwise with pressure to extract the insert.
    For Thread Size
    Each
    For Pronged Helical Inserts
    3-48, 3-56, 4-40, 4-48, 5-40, 5-44, 6-32, 6-40, 8-32, 8-36, 8-40, M2.5, M3, M3.5, M4
    		90254A310000000
    10-24, 10-32, 12-24, 12-28, 1/4"-20, 1/4"-28, 1/4"-32, 1/4"-80, 5/16"-18, 5/16"-24, 5/16"-32, 3/8"-16, 3/8"-24, M5, M6, M7, M8, M10
    		90254A32000000
     
    back to top