CHRISLYNN Helical Thread Insert Kits

Used to repair stripped threads in metal, wood, or plastic by installing a helical thread insert. Provide a new surface for the screw or bolt to grip. Generally include a tap for cutting a new thread in the material, an installation tool and a supply of helical inserts in various sizes.

Filter

StyleModelThread SizeInsert LengthDrill Size
A68101#10-320.312"Q
RFQ
A681161 1/2"-122"1 13/16"
RFQ
A681141 1/4"-121.812"1 9/16"
RFQ
A681131 1/8"-121 5/8"1 7/16"
RFQ
A681111"-121 3/8"1 5/16"
RFQ
A681061/2"-205/8"45/64"
RFQ
A681021/4"-283/8"X
RFQ
A681093/4"-161 1/8"1 1/16"
RFQ
A681043/8"-241/2"33/64"
RFQ
A681085/8"-187/8"53/64"
RFQ
A681035/16"-240.437"29/64"
RFQ
A681107/8"-141 1/4"1 3/16"
RFQ
A681057/16"-205/8"37/64"
RFQ
A681079/16"-180.812"45/64"
RFQ
StyleModelThread SizeInsert LengthDrill Size
A82113H#10-320.19", 0.285", 0.38"13/64"
RFQ
A82145H1 1/2"-122 1/4"1 17/32"
RFQ
A82141H1 1/4"-121 7/8"1 9/32"
RFQ
A82139H1 1/8"-121.688"1 5/32"
RFQ
A82143H1 3/8"-122.062"1 13/32"
RFQ
A82136H1"-121 1/2"1 1/64"
RFQ
A82137H1"-141 1/2"1 1/64"
RFQ
A82126H1/2"-200.5", 0.75", 1"33/64"
RFQ
A82117H1/4"-280.25", 0.375", 0.5"17/64"
RFQ
A82132H3/4"-161 1/8"49/64"
RFQ
A82121H3/8"-240.375", 0.562", 0.75"25/64"
RFQ
A82130H5/8"-180.938"41/64"
RFQ
A82119H5/16"-240.312", 0.469", 0.625"21/64"
RFQ
A82134H7/8"-141.312"57/64"
RFQ
A82123H7/16"-200.438", 0.656", 0.875"29/64"
RFQ
A82128H9/16"-180.844"37/64"
RFQ
StyleModelThread SizeInsert LengthDrill Size
A68121#10-320.31"I
RFQ
A681261/2"-200.62"37/64"
RFQ
A681221/4"-280.37"Q
RFQ
A681243/8"-241/2"29/64"
RFQ
A681235/16"-240.43"X
RFQ
A681257/16"-2014/25"33/64"
RFQ
StyleModelThread SizeInsert LengthDrill Size
A69921#10-240.31"I
RFQ
A699261/2"-130.62"37/64"
RFQ
A699221/4"-200.37"Q
RFQ
A699243/8"-161/2"29/64"
RFQ
A699235/16"-180.43"X
RFQ
A699257/16"-1414/25"33/64"
RFQ
StyleModelThread SizeInsert LengthDrill Size
A882191"-11 1/20.661"1 9/32"
RFQ
A882161/2"-140.534"13/16"
RFQ
A882101/8"-270.273"3/8"
RFQ
A882183/4"-140.553"1 1/64"
RFQ
A882143/8"-180.407"21/32"
RFQ
StyleModelThread SizeInsert LengthDrill Size
A82100H#2-560.086", 0.129", 0.172"3/32"
RFQ
A82104H#4-400.112", 0.168", 0.224"#31
RFQ
A82106H#5-400.125", 0.188", 0.25"#29
RFQ
A82108H#6-320.138", 0.207", 0.276"#25
RFQ
A82110H#8-320.164", 0.246", 0.328"11/64"
RFQ
A82112H#10-240.19", 0.285", 0.38"13/64"
RFQ
A82114H#12-240.216", 0.324", 0.432"15/64"
RFQ
A82144H1 1/2"-62 1/4"1 17/32"
RFQ
A82140H1 1/4"-71 7/8"1 9/32"
RFQ
A82138H1 1/8"-71.688"1 5/32"
RFQ
A82142H1 3/8"-62.062"1 13/32"
RFQ
A82135H1"-81 1/2"1 1/32"
RFQ
A82124H1/2"-130.5", 0.75", 1"17/32"
RFQ
A82116H1/4"-200.25", 0.375", 0.5"17/64"
RFQ
A82131H3/4"-101 1/8"25/32"
RFQ
A82120H3/8"-160.375", 0.562", 0.75"25/64"
RFQ
A82129H5/8"-110.938"21/32"
RFQ
A82118H5/16"-180.312", 0.469", 0.625"21/64"
RFQ
A82133H7/8"-91.312"29/32"
RFQ
A82122H7/16"-140.438", 0.656", 0.875"29/64"
RFQ
A82127H9/16"-120.844"19/32"
RFQ
StyleModelThread SizeInsert LengthDrill Size
A69101#10-320.312"Q
RFQ
A691161 1/2"-122"1 13/16"
RFQ
A691141 1/4"-121.812"1 9/16"
RFQ
A691131 1/8"-121 5/8"1 7/16"
RFQ
A691111"-121 3/8"1 5/16"
RFQ
A691121"-141 3/8"1 5/16"
RFQ
A691061/2"-205/8"45/64"
RFQ
A691021/4"-283/8"X
RFQ
A691093/4"-161 1/8"1 1/16"
RFQ
A691043/8"-241/2"33/64"
RFQ
A691085/8"-187/8"53/64"
RFQ
A691035/16"-240.437"29/64"
RFQ
A691107/8"-141 1/4"1 3/16"
RFQ
A691057/16"-205/8"37/64"
RFQ
A691079/16"-180.812"45/64"
RFQ
StyleModelThread SizeInsert LengthDrill Size
A68900#8-320.31"I
RFQ
A68901#10-240.31"Q
RFQ
A689161 1/2"-62"1 13/16"
RFQ
A689141 1/4"-71.81"1 9/16"
RFQ
A689131 1/8"-71.62"1 7/16"
RFQ
A689111"-81.37"1 5/16"
RFQ
A689061/2"-130.62"45/64"
RFQ
A689021/4"-200.37"X
RFQ
A689093/4"-101 3/25"1 1/16"
RFQ
A689043/8"-161/2"33/64"
RFQ
A689085/8"-110.87"53/64"
RFQ
A689035/16"-180.43"29/64"
RFQ
A689107/8"-91 1/4"1 3/16"
RFQ
A689057/16"-140.62"37/64"
RFQ
A689079/16"-120.81"45/64"
RFQ
StyleModelThread SizeInsert LengthDrill Size
A69900#8-320.31"I
RFQ
A69901#10-240.31"Q
RFQ
A699161 1/2"-62"1 13/16"
RFQ
A699141 1/4"-71.81"1 9/16"
RFQ
A699131 1/8"-71.62"1 7/16"
RFQ
A699111"-81.37"1 5/16"
RFQ
A699061/2"-130.62"45/64"
RFQ
A699021/4"-200.37"X
RFQ
A699093/4"-101 3/25"1 1/16"
RFQ
A699043/8"-161/2"33/64"
RFQ
A699085/8"-110.87"53/64"
RFQ
A699035/16"-180.43"29/64"
RFQ
A699107/8"-91 1/4"1 3/16"
RFQ
A699057/16"-140.62"37/64"
RFQ
A699079/16"-120.81"45/64"
RFQ
StyleModelThread SizeInsert LengthDrill Size
A69963M4 x 0.78 mmI
RFQ
A69964M5 x 0.810 mm11/32"
RFQ
A69965M6 x 112 mm27/64"
RFQ
A69166M8 x 114 mm1/2"
RFQ
A69966M8 x 1.2514 mm1/2"
RFQ
A69967M10 x 1.516 mm37/64"
RFQ
A69167M10 x 1.2516 mm37/64"
RFQ
A69169M12 x 1.2518 mm21/32"
RFQ
A69969M12 x 1.7518 mm21/32"
RFQ
A69170M14 x 1.520 mm47/64"
RFQ
A69970M14 x 220 mm47/64"
RFQ
A69171M16 x 1.522 mm13/16"
RFQ
A69971M16 x 222 mm13/16"
RFQ
A69172M18 x 1.524 mm57/64"
RFQ
A69173M20 x 1.530 mm1 3/32"
RFQ
A69973M20 x 2.530 mm1 3/32"
RFQ
A69174M22 x 1.532 mm1 3/16"
RFQ
A69175M24 x 233 mm1 7/32"
RFQ
A69975M24 x 333 mm1 7/32"
RFQ
StyleModelThread SizeInsert LengthDrill SizeThread TypePrice (ex. VAT)
A880137/8"-180.5", 0.625"57/64"--
RFQ
A88001M10 x 11/2"13/32"Fine€11.33
A88003M12 x 1.250.5", 0.75"31/64"--
RFQ
A88006M14 x 1.250.375", 0.750"9/16"--
RFQ
A88011M18 x 1.51/2"23/32"--
RFQ
CHRISLYNN -

Carbon Steel Rock Solid Helical Thread Insert Kits

StyleModelThread SizeInsert LengthThread TypeDrill SizeMaterialType
A64968--Fine-Carbon SteelRock Solid Kit
RFQ
A64967--Fine-Carbon SteelRock Solid Kit
RFQ
B649621/2"-13, 1/4"-20, 3/8"-16, 5/16"-18, 7/16"-140.37", 0.43", 0.5", 0.62"Fine-Carbon SteelRock Solid Kit
RFQ
B649721/2"-13, 1/4"-20, 3/8"-16, 5/16"-18, 7/16"-140.37", 0.43", 0.5", 0.62"Coarse33/64", 29/64", 37/64", 45/64", XCarbon SteelRock Solid Kit
RFQ
B649631/2"-20, 1/4"-28, 3/8"-24, 5/16"-24, 7/16"-200.375", 0.437", 0.5", 0.625"Fine-Carbon SteelRock Solid Kit
RFQ
B649711/2"-20, 1/4"-28, 3/8"-24, 5/16"-24, 7/16"-200.37", 0.43", 0.5", 0.56", 0.62"Fine33/64", 29/64", 37/64", Q, XCarbon SteelRock Solid Kit
RFQ
B649611/2"-20, 1/4"-28, 3/8"-24, 5/16"-24, 7/16"-200.37", 0.43", 0.5", 0.56", 0.62"Fine-Carbon SteelRock Solid Kit
RFQ
B649731/4"-28, 5/16"-24, 3/8"-24, 7/16"-20, 1/2"-200.375", 0.437", 0.5", 0.625"Fine33/64", 29/64", 37/64", 45/64", XCarbon SteelRock Solid Kit
RFQ
B64966M4 x 0.7, M8 x 1, M10 x 1.25, M12 x 1.25, M14 x 1.58 mm, 14 mm, 16 mm, 18 mm, 20 mmFine-Carbon SteelRock Solid Kit
RFQ
B64976M4 x 0.7, M8 x 1, M10 x 1.25, M12 x 1.25, M14 x 1.58 mm, 14 mm, 16 mm, 18 mm, 20 mmMetric Fine37/64", 1/2", 21/32", 47/64", LCarbon SteelRock Solid Kit
RFQ
B64964M5 x 0.8, M6 x 1, M8 x 1.25, M10 x 1.5, M12 x 1.758 mm, 10 mm, 12 mm, 14 mm, 16 mmMetric Coarse-Carbon SteelRock Solid Kit
RFQ
B64974M5 x 0.8, M6 x 1, M8 x 1.25, M10 x 1.5, M12 x 1.758 mm, 10 mm, 12 mm, 14 mm, 16 mmMetric Coarse11/32", 29/64", 37/64", 1/2", LCarbon SteelRock Solid Kit
RFQ
B64965M5 x 0.8, M6 x 1, M8 x 1.25, M10 x 1.5, M12 x 1.7510 mm, 12 mm, 14 mm, 16 mm, 18 mmMetric Coarse-Carbon SteelRock Solid Kit
RFQ
B64975M10 x 1.5, M12 x 1.75, M5 x 0.8, M6 x 1, M8 x 1.2510 mm, 12 mm, 14 mm, 16 mm, 18 mmMetric Coarse37/64", 29/64", 1/2", 11/32", 21/32"Carbon SteelRock Solid Kit
RFQ
StyleModelThread SizeInsert LengthDrill Size
A68921#10-240.31"I
RFQ
A689261/2"-130.62"37/64"
RFQ
A689221/4"-200.37"Q
RFQ
A689243/8"-161/2"29/64"
RFQ
A689235/16"-180.43"X
RFQ
A689257/16"-1414/25"33/64"
RFQ
CHRISLYNN -

Carbon Steel Helical Thread Insert Kits

StyleModelThread SizeInsert LengthDrill SizeThread TypeGradeMaterial
A649691/2"-13, 1/4"-20, 3/8"-16, 5/16"-18, 7/16"-140.37", 0.43", 0.5", 0.56", 0.62"-CoarseGrade C1215Carbon Steel
RFQ
B68951M5 x 0.88 mmI-Grade C1215Carbon Steel
RFQ
C69951M5 x 0.88 mmI-Grade C1215Carbon Steel
RFQ
B68952M6 x 110 mm11/32"-Grade C1215Carbon Steel
RFQ
C69952M6 x 110 mm11/32"-Grade C1215Carbon Steel
RFQ
C69153M8 x 112 mm27/64"-Grade C1215Carbon Steel
RFQ
B68153M8 x 112 mm27/64"-Grade C1215Carbon Steel
RFQ
B68953M8 x 1.2512 mm27/64"-Grade C1215Carbon Steel
RFQ
C69953M8 x 1.2512 mm27/64"-Grade C1215Carbon Steel
RFQ
B68955M10 x 1.514 mm1/2"-Grade C1215Carbon Steel
RFQ
C69955M10 x 1.514 mm1/2"-Grade C1215Carbon Steel
RFQ
B68155M10 x 1.2514 mm1/2"-Grade C1215Carbon Steel
RFQ
C69155M10 x 1.2514 mm1/2"-Grade C1215Carbon Steel
RFQ
B68156M12 x 1.2516 mm37/64"-Grade C1215Carbon Steel
RFQ
C69156M12 x 1.2516 mm37/64"-Grade C1215Carbon Steel
RFQ
B68956M12 x 1.7516 mm37/64"-Grade C1215Carbon Steel
RFQ
C69956M12 x 1.7516 mm37/64"-Grade C1215Carbon Steel
RFQ
CHRISLYNN -

Steel Helical Thread Insert Kits

StyleModelThread SizeInsert LengthDrill SizeGradeMaterialPrice (ex. VAT)
AK9329-10F-0.687"49/64"Grade 12L14Steel-
RFQ
BK9329-004#4-401/4"5/32"Grade 12L14Steel-
RFQ
BK9329-006#6-327/25"#7Grade 12L14Steel-
RFQ
BK9329-008#8-320.29"FGrade 12L14Steel-
RFQ
BK9329-3#10-240.406"5/16"Grade 12L14Steel-
RFQ
AK9329-332#10-320.406"5/16"Grade 12L14Steel-
RFQ
BK9329-161"-81 1/4"1 9/32"Grade 12L14Steel-
RFQ
C681121"-141 3/8"1 5/16"-Steel€25.09
AK9329-16141"-141 1/4"1 9/32"Grade 12L14Steel-
RFQ
BK9329-81/2"-1321/32"21/32"Grade 12L14Steel-
RFQ
AK9329-8201/2"-2021/32"21/32"Grade 12L14Steel-
RFQ
BK9329-41/4"-200.437"23/64"Grade 12L14Steel-
RFQ
AK9329-4281/4"-280.437"23/64"Grade 12L14Steel-
RFQ
BK9329-123/4"-100.781"7/8"Grade 12L14Steel-
RFQ
AK9329-12163/4"-160.781"7/8"Grade 12L14Steel-
RFQ
BK9329-63/8"-160.515"31/64"Grade 12L14Steel-
RFQ
AK9329-6243/8"-240.515"31/64"Grade 12L14Steel-
RFQ
BK9329-105/8"-110.687"49/64"Grade 12L14Steel-
RFQ
BK9329-55/16"-180.484"27/64"Grade 12L14Steel-
RFQ
AK9329-5245/16"-240.484"27/64"Grade 12L14Steel-
RFQ
BK9329-147/8"-91 1/8"1 7/64"Grade 12L14Steel-
RFQ
AK9329-14147/8"-14-1 7/64"Grade 12L14Steel-
RFQ
BK9329-77/16"-1421/32"17/32"Grade 12L14Steel-
RFQ
AK9329-7207/16"-2021/32"17/32"Grade 12L14Steel-
RFQ
BK9329-99/16"-1221/32"21/32"Grade 12L14Steel-
RFQ
StyleModelThread SizeInsert LengthThread TypeHardnessType
A87905M4 x 0.7, M5 x 0.8, M6 x 16 mm, 7.5 mm, 9 mmMetricRockwell C43-C50Standard
RFQ
A87915M5 x 0.8, M6 x 1, M8 x 1.25, M10 x 1.5, M12 x 1.757.5 mm, 9 mm, 12 mm, 15 mm, 18 mmMetricRockwell C43-C50Standard
RFQ
A87916M8 x 1, M10 x 1, M10 x 1.25, M11 x 1, M12 x 1.512 mm, 15 mm, 16.5 mm, 18 mmMetricRockwell C43-C50Standard
RFQ
A87906M10 x 1, M6 x 1, M8 x 19 mm, 12 mm, 15 mmMetricRockwell C43-C50Standard
RFQ
A87907M10 x 1.5, M12 x 1.75, M8 x 1.2512 mm, 15 mm, 18 mmMetricRockwell C43-C50Standard
RFQ
A87914M10 x 1.25, M12 x 1.25, M5 x 0.8, M6 x 1, M8 x 1.257.5 mm, 9 mm, 12 mm, 15 mm, 18 mm-Rockwell C43-C50Standard
RFQ
A87918M14 x 1.5, M16 x 1.5, M18 x 1.521 mm, 24 mm, 27 mmMetricRockwell C43-C50Standard
RFQ
A87917M14 x 2, M16 x 2, M18 x 2.521 mm, 24 mm, 27 mmMetricRockwell C43-C50Standard
RFQ
StyleModelThread TypeIncludesMaterialTypePrice (ex. VAT)
A87925Coarse/Fine(10) Ea Unc, (4) Ea Unc, (6) Ea Unc, 1/2, 3/4, 3/8, 7/8, Four Drawer Metal Cabinet, Inserts (12) Ea Unf, Unc 1/4, Unf 5/16, Unf 5/8, Unf 7/16Stainless SteelLockable€2,552.98
A87924Coarse/Fine/Metric(10) Ea M8X1, (10) Ea Unc, (12) Ea M5, (6) Ea Unc, 1/2, 3/8, Four Drawer Metal Cabinet, Inserts (12) Ea Unf, M10X1.25, M10X1.5 (6) Ea M11X1, M12X1.5, M12X1.75, M6, M8X1.25, Unc 1/4, Unf 5/16, Unf 7Stainless SteelLockable€2,248.38
A87930Metric(10) Ea M8X1, (5) Ea M14X2, Four Drawer Metal Cabinet, Inserts (12) Ea M5, M10X1.25, M10X1.5 (6) Ea M11X1, M12X1.5, M12X1.75, M14X1.5, M16X1.5, M16X2, M18X1.5, M18X2.5, M6, M8X1.25Stainless SteelLockable€2,468.05
StyleModelThread SizeInsert LengthDrill Size
A69121#10-320.31"I
RFQ
A691261/2"-200.62"37/64"
RFQ
A691221/4"-280.37"Q
RFQ
A691243/8"-241/2"29/64"
RFQ
A691235/16"-240.43"X
RFQ
A691257/16"-2014/25"33/64"
RFQ
StyleModelThread SizeInsert LengthThread TypeDrill Size
A82150M2 x 0.43 mmCoarse#45
RFQ
A82151M2.2 x 0.453.3 mmCoarse#42
RFQ
A82152M2.5 x 0.453.8 mmCoarse#37
RFQ
A82153M3 x 0.54.5 mmCoarse1/8"
RFQ
A82154M3.5 x 0.65.3 mmCoarse#27
RFQ
A82155M4 x 0.76 mmCoarse11/64"
RFQ
A82156M5 x 0.87.5 mmCoarse13/64"
RFQ
A82157M6 x 19 mmCoarse1/4"
RFQ
A82158M7 x 110.5 mmCoarse9/32"
RFQ
A82159M8 x 112 mmFine21/64"
RFQ
A82160M8 x 1.2512 mmCoarse21/64"
RFQ
A82161M9 x 113.5 mmFine3/8"
RFQ
A82162M9 x 1.2513.5 mmCoarse3/8"
RFQ
A82163M10 x 115 mmFine13/32"
RFQ
A82165M10 x 1.515 mmCoarse13/32"
RFQ
A82164M10 x 1.2515 mmFine13/32"
RFQ
A82166M11 x 116.5 mmFine7/16"
RFQ
A82168M11 x 1.516.55 mmCoarse29/64"
RFQ
A82167M11 x 1.2516.5 mmFine29/64"
RFQ
A82146M12 x 118 mm-31/64"
RFQ
A82170M12 x 1.518 mmFine31/64"
RFQ
A82169M12 x 1.2518 mmFine31/64"
RFQ
A82171M12 x 1.7518 mmCoarse31/64"
RFQ
A82172M14 x 1.521 mmFine9/16"
RFQ
A82147M14 x 1.2521 mm-9/16"
RFQ
CHRISLYNN -

Professional Kits

StyleModelThread SizeInsert LengthDrill SizeThread Type
A82324#4-84"4"-
RFQ
B82153HM3 x 0.53 mm, 4.5 mm, 6 mm1/8"-
RFQ
B82154HM3.5 x 0.63.5 mm, 5.3 mm, 7 mm#27-
RFQ
B82155HM4 x 0.74 mm, 6 mm, 8 mm11/64"-
RFQ
B82156HM5 x 0.85 mm, 7.5 mm, 10 mm13/64"-
RFQ
B82157HM6 x 16 mm, 9 mm, 12 mm1/4"-
RFQ
B82158HM7 x 17 mm, 10.5 mm, 14 mm9/32"-
RFQ
B82159HM8 x 18 mm, 12 mm, 16 mm21/64"-
RFQ
B82160HM8 x 1.258 mm, 12 mm, 16 mm21/64"-
RFQ
B82162HM9 x 1.2513.5 mm3/8"-
RFQ
B82163HM10 x 110 mm, 15 mm, 20 mm13/32"-
RFQ
B82165HM10 x 1.510 mm, 15 mm, 20 mm13/32"-
RFQ
B82164HM10 x 1.2510 mm, 15 mm, 20 mm13/32"-
RFQ
B82168HM11 x 1.516.5 mm29/64"-
RFQ
B82170HM12 x 1.512 mm, 18 mm, 24 mm31/64"-
RFQ
B82169HM12 x 1.2512 mm, 18 mm, 24 mm31/64"-
RFQ
B82171HM12 x 1.7512 mm, 18 mm, 24 mm31/64"-
RFQ
B82172HM14 x 1.521 mm9/16"-
RFQ
B82173HM14 x 221 mm37/64"-
RFQ
B82174HM16 x 1.524 mm21/32"-
RFQ
B82175HM16 x 224 mm21/32"-
RFQ
B82176HM18 x 1.527 mm23/32"-
RFQ
B82178HM18 x 2.527 mm47/64"-
RFQ
B82181HM20 x 2.530 mm13/16"-
RFQ
A82193XM30 x 345 mm1 7/32"-
RFQ
StyleModelThread SizeInsert LengthDrill SizeThread Type
A82103#3-560.148"#37Fine
RFQ
A82105#4-480.168"#31Fine
RFQ
A82109#6-400.207"#25Fine
RFQ
A82111#8-360.246"#17Fine
RFQ
A82113#10-320.285"13/64"Fine
RFQ
A82115#12-280.324"15/64"-
RFQ
A821451 1/2"-122 1/4"1 17/32"Fine
RFQ
A821411 1/4"-121 7/8"1 9/32"Fine
RFQ
A821391 1/8"-121.688"1 5/32"Fine
RFQ
A821431 3/8"-122.062"1 13/32"Fine
RFQ
A821361"-121 1/2"1 1/64"Fine
RFQ
A821371"-141 1/2"1 1/64"Fine
RFQ
A821261/2"-203/4"33/64"Fine
RFQ
A821171/4"-283/8"17/64"Fine
RFQ
A821323/4"-161 1/8"49/64"Fine
RFQ
A821213/8"-249/16"25/64"Fine
RFQ
A821305/8"-180.938"41/64"Fine
RFQ
A821195/16"-240.469"21/64"Fine
RFQ
A821347/8"-141.312"57/64"Fine
RFQ
A821237/16"-2021/32"29/64"Fine
RFQ
A821289/16"-180.844"37/64"Fine
RFQ
12

We are here to help!

Looking for a part not listed here?