Thread Inserts

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Thread inserts are suitable for installing threaded fasteners in soft materials, thin materials or materials with a stripped & threaded hole. They are ideal for automobile, aerospace and maintenance... Read More

StyleModelThread SizeInsert LengthDrill SizePrice (inc. GST)
A831451 1/2-122.25"1 17/32" SGD 75.14
A831411 1/4-121.875"1 9/32" SGD 42.64
A831391 1/8-121.688"1 5/32" SGD 41.08
A831431 3/8-122.062"1 13/32" SGD 73.17
A831361-121.5"1 1/64" SGD 33.20
A831371-141.5"1 1/64" SGD 39.54
A831261/2-200.75"33/64" SGD 33.06
A831171/4-280.375"17/64" SGD 30.82
A831033-560.148"#37 SGD 24.34
A831323/4-161.125"49/64" SGD 41.77
A831213/8-240.562"25/64" SGD 34.48
A831054-480.168"#31 SGD 26.17
A831305/8-180.938"41/64" SGD 42.66
A831195/16-240.469"21/64" SGD 30.96
A831096-400.207"#25 SGD 22.23
A831347/8-141.312"57/64" SGD 31.09
A831237/16-200.656"29/64" SGD 30.54
A831118-360.246"#17 SGD 32.22
A831289/16-180.844"37/64" SGD 38.07
A8311310-320.285"13/64" SGD 30.25
A8311512-280.324"15/64" SGD 38.56
StyleModelThread SizeThread TypeTap StyleOverall LengthThread LengthShank Dia.MaterialThread DirectionPrice (inc. GST)
A328-81/2-14NPTPipe3 1/2"1 3/8"0.906High Speed SteelRight Hand SGD 203.28
A328-41/4-18NPTPipe2 1/2"1 1/16"11/16"High Speed SteelRight Hand SGD 159.54
A328-21/8-27NPTPipe2 7/16"1 1/16"9/16"High Speed SteelRight Hand SGD 114.42
A328-63/8-18NPTPipe3 1/8"1 3/8"11/16"High Speed SteelRight Hand SGD 261.78
StyleModelThread SizeInsert LengthDrill SizePrice (inc. GST)
A880567/8-180.5"57/64" SGD 49.67
A880587/8-180.625"57/64" SGD 49.95
A88032M10 x 10.5"13/32" SGD 143.69
A88034M12 x 1.250.5"31/64" SGD 31.67
A88036M12 x 1.250.75"31/64" SGD 32.79
A88046M14 x 1.250.375"9/16" SGD 33.34
A88047M14 x 1.250.438"9/16" SGD 33.77
A88048M14 x 1.250.5"9/16" SGD 34.19
A88050M14 x 1.250.75"9/16" SGD 34.48
A88051M18 x 1.50.5"23/32" SGD 49.67
StyleModelThread SizeInsert LengthDrill SizePrice (inc. GST)
A882391-11 1/2 NPT0.661"1 9/32" SGD 151.97
A882361/2-14 NPT0.534"13/16" SGD 91.45
A882321/4-18 NPT0.394"33/64" SGD 63.18
A882301/8-27 NPT0.273"3/8" SGD 55.01
A882383/4-14 NPT0.553"1 1/64" SGD 113.83
A882343/8-18 NPT0.407"21/32" SGD 86.53
StyleModelThread SizeInsert LengthDrill SizePrice (inc. GST)
A837351-8 BSW1.5"1 1/32" SGD 177.71
A837241/2-12 BSW0.75"33/64" SGD 63.83
A837161/4-20 BSW0.375"17/64" SGD 38.89
A837101/8-40 BSW0.188"#30 SGD 38.89
A837313/4-10 BSW1.125"25/32" SGD 61.41
A837203/8-16 BSW0.562"25/64" SGD 40.90
A837123/16-24 BSW0.281"#8 SGD 38.89
A837295/8-11 BSW0.938"21/32" SGD 55.04
A837185/16-18 BSW0.469"21/64" SGD 36.39
A837337/8-9 BSW1.312"29/32" SGD 100.18
A837227/16-14 BSW0.656"29/64" SGD 46.20
StyleModelThread SizeInsert LengthDrill SizePrice (inc. GST)
A836361-10 BSF1.5"1 1/32" SGD 154.34
A836261/2-16 BSF0.75"33/64" SGD 97.16
A836171/4-26 BSF0.375"G SGD 67.16
A836323/4-12 BSF1.125"49/64" SGD 111.91
A836213/8-20 BSF0.562"W SGD 82.44
A836305/8-14 BSF0.938"41/64" SGD 134.33
A836195/16-22 BSF0.469"21/64" SGD 61.87
A836347/8-11 BSF1.312"57/64" SGD 111.91
A836237/16-18 BSF0.656"29/64" SGD 84.84
StyleModelThread SizeInsert LengthDrill SizePrice (inc. GST)
A883371-11 BSP1.5"1 9/32" SGD 102.52
A883331/2-14 BSP0.75"27/32" SGD 110.18
A883311/4-19 BSP0.375"17/32" SGD 70.00
A883301/8-28 BSP0.188"25/64" SGD 50.48
A883353/4-14 BSP1.125"1 1/16" SGD 86.08
A883323/8-19 BSP0.562"43/64" SGD 104.11
A883345/8-14 BSP0.938"59/64" SGD 110.18
A883367/8-14 BSP1.312"1 13/64" SGD 88.34
StyleModelInsert LengthDrill SizeExternal Thread SizeInternal Thread SizePrice (inc. GST)
A659240.5"29/64"1/2-133/8-16 SGD 25.05
A659210.31"I5/16-1810-24 SGD 24.46
A659220.37"Q3/8-161/4-20 SGD 24.34
A659230.43"X7/16-145/16-18 SGD 24.63
A659250.56"33/64"9/16-127/16-14 SGD 26.25
A659260.62"37/64"5/8-111/2-13 SGD 27.15
StyleModelInsert LengthDrill SizeExternal Thread SizeInternal Thread SizePrice (inc. GST)
A763240.5"29/64"1/2-133/8-16 SGD 33.12
A763210.31"I5/16-1810-24 SGD 15.73
A763220.37"Q3/8-161/4-20 SGD 26.11
A763230.43"X7/16-145/16-18 SGD 30.64
A763250.56"33/64"9/16-127/16-14-
RFQ
A763260.62"37/64"5/8-111/2-13 SGD 40.98
StyleModelInsert LengthDrill SizeExternal Thread SizeInternal Thread SizePrice (inc. GST)
A659040.5"33/64"9/16-123/8-16 SGD 25.05
A659000.31"I5/16-188-32 SGD 27.53
A659010.31"Q3/8-1610-24 SGD 24.46
A659020.37"X7/16-141/4-20 SGD 24.34
A659030.43"29/64"1/2-135/16-18 SGD 24.63
A659050.62"37/64"5/8-117/16-14 SGD 26.48
A659060.62"45/64"3/4-161/2-13 SGD 27.15
A659070.81"45/64"3/4-169/16-12 SGD 30.98
A659080.87"53/64"7/8-145/8-11 SGD 30.88
A659091.12"1 1/16"1 1/8-123/4-10 SGD 35.15
A659101.25"1 3/16"1 1/4-127/8-9 SGD 43.76
A659111.37"1 5/16"1 3/8-121-8 SGD 66.81
A659131.62"1 7/16"1 1/2-121 1/8-7 SGD 131.50
A659141.81"1 9/16"1 5/8-121 1/4-7 SGD 171.81
A659162"1 13/16"1 7/8-121 1/2-6 SGD 350.36
StyleModelInsert LengthDrill SizeExternal Thread SizeInternal Thread SizePrice (inc. GST)
A763040.5"33/64"9/16-123/8-16 SGD 31.61
A763010.312"Q3/8-1610-24-
RFQ
A763000.312"I5/16-188-32-
RFQ
A763020.375"X7/16-141/4-20-
RFQ
A763030.437"29/64"1/2-135/16-18-
RFQ
A663060.625"45/64"3/4-161/2-13 SGD 36.92
A763050.625"37/64"5/8-117/16-14-
RFQ
A763060.688"41/64"11/16-111/2-13 SGD 43.19
A663070.812"45/64"3/4-169/16-12 SGD 55.58
A763070.812"49/64"13/16-169/16-12-
RFQ
A763080.875"53/64"7/8-145/8-11 SGD 54.20
A763101.25"1 3/16"1 1/4-127/8-9-
RFQ
A763091.125"1 1/16"1 1/8-123/4-10 SGD 68.52
A763111.375"1 5/16"1 3/8-121-8-
RFQ
StyleModelInsert LengthDrill SizeExternal Thread SizeInternal Thread SizePrice (inc. GST)
A659360.5"37/64"5/8-113/8-16 SGD 76.13
A659310.312"I5/16-186-32 SGD 64.25
A659320.312"Q3/8-168-32 SGD 65.37
A659330.312"X7/16-1410-24 SGD 66.67
A659340.375"29/64"1/2-131/4-20 SGD 73.19
A659350.437"33/64"9/16-125/16-18 SGD 75.40
A659370.625"45/64"3/4-167/16-14 SGD 94.07
A659380.688"53/64"7/8-141/2-13 SGD 80.15
A659390.812"53/64"7/8-149/16-12 SGD 103.04
A659400.875"15/16"1-125/8-11 SGD 110.80
A659421.25"1 5/16"1 3/8-127/8-9 SGD 185.20
A659411.125"1 3/16"1 1/4-123/4-10 SGD 128.01
A659431.375"1 7/16"1 1/2-121-8 SGD 354.87
StyleModelInsert LengthDrill SizeExternal Thread SizeInternal Thread SizePrice (inc. GST)
A763360.5"37/64"5/8-113/8-16-
RFQ
A763330.312"X7/16-1410-24-
RFQ
A763320.312"Q3/8-168-32-
RFQ
A763310.312"I5/16-186-32-
RFQ
A763340.375"29/64"1/2-131/4-20-
RFQ
A763350.437"33/64"9/16-125/16-18-
RFQ
A763370.625"41/64"11/16-117/16-14-
RFQ
A663370.625"45/64"3/4-167/16-14 SGD 144.70
A663380.688"53/64"7/8-141/2-13 SGD 139.58
A763380.688"49/64"13/16-161/2-13-
RFQ
A763390.812"53/64"7/8-149/16-12-
RFQ
A763400.875"15/16"1-125/8-11-
RFQ
A763421.25"1 5/16"1 3/8-127/8-9-
RFQ
A763411.125"1 3/16"1 1/4-123/4-10-
RFQ
A763431.375"1 7/16"1 1/2-121-8-
RFQ
StyleModelInsert LengthDrill SizeExternal Thread SizeInternal Thread SizePrice (inc. GST)
A661240.5"29/64"1/2-133/8-24 SGD 25.05
A661210.31"I5/16-1810-32 SGD 24.46
A661220.37"Q3/8-161/4-28 SGD 24.34
A661230.43"X7/16-145/16-24 SGD 24.73
A661250.56"33/64"9/16-127/16-20 SGD 26.48
A661260.62"37/64"5/8-111/2-20 SGD 27.29
StyleModelInsert LengthDrill SizeExternal Thread SizeInternal Thread Size
A765240.5"29/64"1/2-133/8-24
RFQ
A765210.31"I5/16-1810-32
RFQ
A765220.37"Q3/8-161/4-28
RFQ
A765230.43"X7/16-145/16-24
RFQ
A765250.56"33/64"9/16-127/16-20
RFQ
A765260.62"37/64"5/8-111/2-20
RFQ
StyleModelInsert LengthDrill SizeExternal Thread SizeInternal Thread SizePrice (inc. GST)
A661040.5"33/64"9/16-123/8-24 SGD 25.05
A661010.312"Q3/8-1610-32 SGD 24.46
A661020.375"X7/16-141/4-28 SGD 24.34
A661030.437"29/64"1/2-135/16-24 SGD 24.73
A661050.625"37/64"5/8-117/16-20 SGD 26.48
A661060.625"45/64"3/4-161/2-20 SGD 27.29
A661070.812"45/64"3/4-169/16-18 SGD 32.14
A661080.875"53/64"7/8-145/8-18 SGD 31.15
A661101.25"1 3/16"1 1/4-127/8-14 SGD 46.18
A661091.125"1 1/16"1 1/8-123/4-16 SGD 35.15
A661111.375"1 5/16"1 3/8-121-12 SGD 71.99
A661121.375"1 5/16"1 3/8-121-14 SGD 71.99
A661131.625"1 7/16"1 1/2-121 1/8-12 SGD 164.24
A661141.812"1 9/16"1 5/8-121 1/4-12 SGD 196.82
A661162"1 13/16"1 7/8-121 1/2-12 SGD 350.36
StyleModelInsert LengthDrill SizeExternal Thread SizeInternal Thread SizePrice (inc. GST)
A765040.5"33/64"9/16-123/8-24 SGD 38.78
A765010.312"Q3/8-1610-32-
RFQ
A765020.375"X7/16-141/4-28-
RFQ
A765030.437"29/64"1/2-135/16-24 SGD 32.91
A665060.625"45/64"3/4-161/2-20 SGD 45.59
A765050.625"37/64"5/8-117/16-20-
RFQ
A765060.688"41/64"11/16-111/2-20 SGD 46.52
A665070.812"45/64"3/4-169/16-18 SGD 55.58
A765070.812"49/64"13/16-169/16-18-
RFQ
A765080.875"53/64"7/8-145/8-18-
RFQ
A765101.25"1 3/16"1 1/4-127/8-14 SGD 149.53
A765091.125"1 1/16"1 1/8-123/4-16 SGD 68.52
A765111.375"1 5/16"1 3/8-121-12-
RFQ
StyleModelInsert LengthDrill SizeExternal Thread SizeInternal Thread SizePrice (inc. GST)
A661360.5"37/64"5/8-113/8-24 SGD 76.13
A661330.312"X7/16-1410-32 SGD 66.67
A661340.375"29/64"1/2-131/4-28 SGD 73.19
A661350.437"33/64"9/16-125/16-24 SGD 75.40
A661370.625"45/64"3/4-167/16-20 SGD 94.07
A661380.688"53/64"7/8-141/2-20 SGD 80.15
A661390.812"53/64"7/8-149/16-18 SGD 103.04
A661400.875"15/16"1-125/8-18 SGD 110.80
A661421.25"1 5/16"1 3/8-127/8-14 SGD 185.20
A661411.125"1 3/16"1 1/4-123/4-16 SGD 128.01
A661431.375"1 5/16"1 1/2-121-12 SGD 354.87
StyleModelInsert LengthDrill SizeExternal Thread SizeInternal Thread SizePrice (inc. GST)
A765360.5"37/64"5/8-113/8-24-
RFQ
A765330.312"X7/16-1410-32-
RFQ
A765340.375"29/64"1/2-131/4-28-
RFQ
A765350.437"33/64"9/16-125/16-24-
RFQ
A665370.625"45/64"3/4-167/16-20 SGD 144.70
A765370.625"41/64"11/16-117/16-20-
RFQ
A665380.688"53/64"7/8-141/2-20 SGD 139.58
A765380.688"49/64"13/16-161/2-20-
RFQ
A765390.812"53/64"7/8-149/16-18-
RFQ
A765400.875"15/16"1-125/8-18-
RFQ
A765421.25"1 5/16"1 3/8-127/8-14-
RFQ
A765411.125"1 3/16"1 1/4-123/4-16-
RFQ
A765431.375"1 5/16"1 1/2-121-12-
RFQ
StyleModelInsert LengthDrill SizeExternal Thread SizeInternal Thread SizePrice (inc. GST)
A659518mmIM8 x 1.25M5 x 0.8 SGD 25.89
A6595210mm11/32"M10 x 1.25M6 x 1 SGD 26.43
A6595312mm27/64"M12 x 1.25M8 x 1.25 SGD 26.82
A6615312mm27/64"M12 x 1.25M8 x 1 SGD 28.26
A6595514mm1/2"M14 x 1.5M10 x 1.5 SGD 28.28
A6615514mm1/2"M14 x 1.5M10 x 1.25 SGD 28.61
A6595616mm37/64"M16 x 1.5M12 x 1.75 SGD 30.35
A6615616mm37/64"M16 x 1.5M12 x 1.25 SGD 30.70
StyleModelInsert LengthDrill SizeExternal Thread SizeInternal Thread SizePrice (inc. GST)
A765518mmIM8 x 1.25M5 x 0.5-
RFQ
A763518mmIM8 x 1.25M5 x 0.8 SGD 32.53
A7635210mm11/32"M10 x 1.25M6 x 1 SGD 32.85
A7655210mm11/32"M10 x 1.25M6 x 0.75-
RFQ
A7655312mm27/64"M12 x 1.25M8 x 1-
RFQ
A7635312mm27/64"M12 x 1.25M8 x 1.25 SGD 36.14
A7635514mm1/2"M14 x 1.5M10 x 1.5 SGD 36.65
A7655514mm1/2"M14 x 1.5M10 x 1.25-
RFQ
A7635616mm37/64"M16 x 1.5M12 x 1.75 SGD 39.11
A7655616mm37/64"M16 x 1.5M12 x 1.25-
RFQ
12

Thread Inserts

Thread inserts are suitable for installing threaded fasteners in soft materials, thin materials or materials with a stripped & threaded hole. They are ideal for automobile, aerospace and maintenance applications. Raptor Supplies offers these thread inserts from brands like Grainger, Chrislynn, Helicoil, E-Z Lok & Walter. They provide more strength, versatility & resilient operation than traditional threaded holes.

Features

  • Thread inserts are ideal for creating strong internal threading on various materials like metals, polymers, wood & composites.
  • They offer a strong connection to the fastener while preventing wear, corrosion or over-torque.
  • Helical threaded inserts may have a tang / prong at the end of the insert for ease of installation.
  • The thread inserts are made of stainless steel, steel or brass and are available in various thread sizes, such as UNC, UNF, BSW, BSF, BSP, NPT, Imperial & Metric.
  • Raptor Supplies also offers Grainger power drivers for installing these inserts.

Chrislynn Precision Inserts:

  • These free-running inserts are made of stainless steel for outdoor applications.
  • They are DFARS compliant and may adhere to military or aerospace specifications when required.
  • These Metric threading inserts are available in lengths ranging from 3 mm to 36 mm.

E-Z Lok Knurled Press Inserts:

  • These E-Z Press inserts are ideal for post-moulding installation in thermoset plastics & thermoplastics.
  • They have a slotted design with a diamond-knurled outer surface for cold installation and optimum torque & pull-out resistance. This eliminates the requirement to chase the threads after the moulding operation.
  • These press inserts press into the material after installation using a rubber mallet or an arbour press and are available in flush or flanged variants.

Frequently Asked Questions

Why are some thread inserts larger in diameter than the tapped hole before installation?

Selected thread inserts have a slightly larger diameter than the diameter of the tapped hole before installation, as the installation tool decreases the leading coil's diameter when it applies torque to the insert's prong / tang for easy installation. Once the threaded insert is installed, it acts like a spring and expands outward onto the material for strong anchoring.

How to choose the length of a helical insert?

The helical insert length should be at least as long as the desired screw diameter. Users may also choose inserts having longer lengths for increased strength. The exact insert length can vary depending upon the application & the material being installed into the insert. Materials like steel do not need long inserts. In contrast, for soft materials like aluminium, a longer insert is preferred.

How to install a helical thread insert?

  • Drill a hole according to the length of the insert / screw / bolt using the suggested drill bit size.
  • Thread the drilled hole using a tap (sold separately), then wind the insert into the hole using an installation tool.
  • Use a prong break-off tool or punch to remove the prong and allow free passage of the fastener.

How to install a key-locking thread insert?

  • Drill a hole according to the required application.
  • Tap the drilled hole, then wind the insert into the hole.
  • Drive the key into the material using the installation tool & hammer.

Can thread inserts be removed once installed?

Yes, some thread inserts can be removed using removal tools that attach to them & unwind them in the direction opposite to that used during installation.

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