HELICOIL Locking Helical Inserts

Helicoil locking helical inserts are installed into printing presses, gear housing & exhaust systems to create an internal screw thread for installing fasteners in automotive manufacturing & maintenance applications. They have a screw locking design to avoid screw loosening upon installation.

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M3 x 0.5 Grade 304 Stainless Steel Locking Helical Inserts

StyleModelInsert LengthDrill SizeFree Coil Dia.FinishDrill Bit SizeMax. Hole Dia.Display QtyThread DirectionPricePkg. Qty.
A4184-2.5CNW025S2.5 mm2.55 mm3.45 mmDry Film Lubricant#372.6416 mm1000Right Hand€2,375.341000
A4184-2.5CN025S2.5 mm2.55 mm3.45 mmPlain--1000Right Hand€2,257.671000
A4184-3CN030S3 mm1/8"4.075 mmPlain3.15 mm-1000-€1,793.641000
A4184-3CNW030S3 mm1/8"4.075 mmDry Film Lubricant3.2 mm3.2004 mm1000Right Hand€1,698.891000
AA4184-3CN0303 mm3.15 mm4.075 mmPlain--100Right Hand€155.30100
A4184-3.5CNW035S3.5 mm3.7 mm4.675 mmDry Film Lubricant---Right Hand€1,465.671000
A4184-2.5CN038S3.8 mm2.55 mm3.45 mmPlain--1000Right Hand€1,407.991000
A4184-2.5CNW038S3.8 mm2.55 mm3.45 mmDry Film Lubricant#372.6416 mm1000Right Hand€1,918.031000
AA4184-3CN0454.5 mm3.15 mm4.075 mmPlain--100Right Hand€164.47100
A4184-3CNW045S4.5 mm1/8"4.075 mmDry Film Lubricant3.2 mm3.2004 mm1000Right Hand€1,965.971000
A4184-3CN045S4.5 mm1/8"4.075 mmPlain3.15 mm-1000Right Hand€1,779.111000
A4184-2.5CNW050S5 mm2.55 mm3.45 mmDry Film Lubricant#372.6416 mm1000Right Hand€2,343.641000
A4184-2.5CN050S5 mm2.55 mm3.45 mmPlain--1000Right Hand€1,479.011000
A4184-3.5CNW053S5.3 mm3.7 mm4.953 mmDry Film Lubricant-3.7084 mm1000Right Hand€1,381.081000
AA4184-3CN0606 mm3.15 mm4.075 mmPlain--100Right Hand€192.22100
A4184-3CN060S6 mm1/8"4.075 mmPlain3.15 mm-1000Right Hand€1,869.361000
A4184-3CNW060S6 mm1/8"4.075 mmDry Film Lubricant3.2 mm3.2004 mm1000Right Hand€2,056.971000
B4184-3.5CNW070S7 mm3.7 mm4.675 mmDry Film Lubricant---Right Hand€2,021.181000
AA4184-3CN0757.5 mm3.15 mm4.075 mm----Right Hand€203.32100
AA4184-3CN0909 mm3.15 mm4.075 mmPlain--100Right Hand€220.83100
StyleModelInsert LengthFree Coil Dia.Sti Tap SizeDrill SizeThread DirectionFinishMaterial Grade/classDrill Bit SizePricePkg. Qty.
AA3585-02EN0860.086"0.115"#2-563/32"Right HandPlainGrade Nitronic 60-€283.18100
AA4184-3EN0606 mm4.075 mmM3 x 0.5-Right HandPlainGrade Nitronic 603.15 mm€602.26100
StyleModelInsert LengthDrill SizeFree Coil Dia.Thread DirectionFinishSti Tap SizeMaterial Grade/classDisplay QtyPricePkg. Qty.
AA4184-10CN25025 mm10.5 mm12.225 mmRight HandPlainM10 x 1.518-8100€451.37100
AA4184-10CN30030 mm10.5 mm12.225 mmRight Hand----€526.59100
StyleModelInsert LengthDrill SizeFree Coil Dia.Thread DirectionFinishSti Tap SizeMaterial Grade/classDisplay QtyPricePkg. Qty.
AA3591-4EN5001/2"G0.316"Right HandPlain1/4"-28Grade Nitronic 60100€285.39100
AA3591-4EN2501/4"G0.316"Right HandPlain1/4"-28Grade Nitronic 60100€241.96100
AA3591-4EN3753/8"G0.316"Right HandPlain1/4"-28Grade Nitronic 60100€277.70100
StyleModelInsert LengthDrill SizeFree Coil Dia.Thread DirectionFinishSti Tap SizeMaterial Grade/classDisplay QtyPricePkg. Qty.
AA3585-04EN1120.112"#310.151"Right HandPlain#4-40Grade Nitronic 60100€287.03100
AA3585-04EN1680.168"#310.151"Right HandPlain#4-40Grade Nitronic 60100€280.18100
AA3585-04EN2240.224"#310.151"Right HandPlain#4-40Grade Nitronic 60100€302.11100
StyleModelInsert LengthDrill SizeFree Coil Dia.Thread DirectionFinishSti Tap SizeMaterial Grade/classDisplay QtyPricePkg. Qty.
AA3585-06EN1380.138"#260.185"Right HandPlain#6-32Grade Nitronic 60100€269.44100
AA3585-06EN2070.207"#260.185"Right HandPlain#6-32Grade Nitronic 60100€297.37100
AA3585-06EN2760.276"#260.185"Right HandPlain#6-32Grade Nitronic 60100€306.80100
StyleModelInsert LengthDrill SizeFree Coil Dia.Thread DirectionFinishSti Tap SizeMaterial Grade/classDisplay QtyPricePkg. Qty.
AA3585-2EN1640.164"#170.212"Right HandPlain#8-32Grade Nitronic 60100€273.14100
AA3585-2EN2460.246"#170.212"Right HandPlain#8-32Grade Nitronic 60100€292.11100
AA3585-2EN3280.328"#170.212"Right HandPlain#8-32Grade Nitronic 60100€318.45100
StyleModelInsert LengthDrill SizeFree Coil Dia.Thread DirectionFinishSti Tap SizeMaterial Grade/classDisplay QtyPricePkg. Qty.
AA3585-3EN1900.19"13/64"0.251"Right HandPlain#10-24Grade Nitronic 60100€244.07100
AA3585-3EN3800.38"13/64"0.251"Right HandPlain#10-24Grade Nitronic 60100€271.81100
AA3585-3EN2850.385"13/64"0.251"Right HandPlain#10-24Grade Nitronic 60100€297.47100
StyleModelInsert LengthFree Coil Dia.Drill SizeThread DirectionFinishSti Tap SizeMaterial Grade/classDisplay QtyPricePkg. Qty.
AA3585-4EN5001/2"8/25"HRight HandPlain1/4"-20Grade Nitronic 60100€323.77100
AA3585-4EN2501/4"8/25"HRight HandPlain1/4"-20Grade Nitronic 60100€275.32100
AA3585-4EN7503/4"8/25"HRight HandPlain1/4"-20Grade Nitronic 60100€353.93100
AA3585-4EN3753/8"8/25"HRight HandPlain1/4"-20Grade Nitronic 60100€283.66100
StyleModelInsert LengthDrill SizeFree Coil Dia.Thread DirectionFinishSti Tap SizeMaterial Grade/classDisplay QtyPricePkg. Qty.
AA3585-5EN4690.469"Q0.39"Right HandPlain5/16"-18Grade Nitronic 60100€329.63100
AA3585-5EN6255/8"Q0.39"Right HandPlain5/16"-18Grade Nitronic 60100€449.62100
AA3585-5EN3125/16"Q0.39"Right HandPlain5/16"-18Grade Nitronic 60100€295.75100
StyleModelInsert LengthDrill SizeFree Coil Dia.Thread DirectionFinishSti Tap SizeMaterial Grade/classDisplay QtyPricePkg. Qty.
AA3591-3EN1900.19"#70.246"Right HandPlain#10-32Grade Nitronic 60100€270.77100
AA3591-3EN3800.38"#70.246"Right HandPlain#10-32Grade Nitronic 60100€286.11100
AA3591-3EN5700.57"#70.246"Right HandPlain#10-32Grade Nitronic 60100€371.61100
AA3591-3EN2850.285"#70.246"Right HandPlain#10-32Grade Nitronic 60100€284.23100
AA3591-3EN4750.475"#70.246"Right HandPlain#10-32Grade Nitronic 60100€327.92100
StyleModelInsert LengthDrill SizeFree Coil Dia.Thread DirectionFinishSti Tap SizeMaterial Grade/classDisplay QtyPricePkg. Qty.
AA3591-5EN4690.469"21/64"0.39"Right HandPlain5/16"-24Grade Nitronic 60100€697.65100
AA3591-5EN6255/8"21/64"0.39"Right HandPlain5/16"-24Grade Nitronic 60100€831.63100
AA3591-5EN3125/16"21/64"0.39"Right HandPlain5/16"-24Grade Nitronic 60100€632.37100
StyleModelInsert LengthFree Coil Dia.Drill SizeThread DirectionFinishSti Tap SizeMaterial Grade/classDisplay QtyPricePkg. Qty.
AA4184-4EN0404 mm5.325 mm4.2 mmRight HandPlainM4 x 0.7Grade Nitronic 60100€537.37100
AA4184-4EN0606 mm5.325 mm4.2 mmRight HandPlainM4 x 0.7Grade Nitronic 60100€272.46100
AA4184-4EN0808 mm5.325 mm4.2 mmRight HandPlainM4 x 0.7Grade Nitronic 60100€588.09100
StyleModelInsert LengthFree Coil Dia.Drill SizeThread DirectionFinishSti Tap SizeMaterial Grade/classDrill Bit SizePricePkg. Qty.
AA4184-5EN0505 mm6.5278 mm5.2 mmRight HandPlainM5 X 0.8Grade Nitronic 60-€564.21100
AA4184-5EN0757.5 mm6.525 mm-Right HandPlainM5 X 0.8Grade Nitronic 605.2 mm€563.14100
AA4184-5EN10010 mm6.525 mm5.2 mmRight HandPlainM5 X 0.8Grade Nitronic 60-€602.26100
StyleModelInsert LengthFree Coil Dia.Drill SizeThread DirectionFinishSti Tap SizeMaterial Grade/classDisplay QtyPricePkg. Qty.
AA4184-3.5CNW0353.5 mm4.675 mm3.7 mmRight HandDry Film LubricantM3.5 x 0.518-8100€161.47100
AA4184-3.5CNW0535.3 mm4.675 mm3.7 mmRight HandDry Film LubricantM3.5 x 0.518-8100€170.15100
AA4184-3.5CNW0707 mm4.675 mm3.7 mmRight HandDry Film LubricantM3.5 x 0.518-8100€187.12100
StyleModelInsert LengthFree Coil Dia.Drill SizeThread DirectionFinishSti Tap SizeMaterial Grade/classDisplay QtyPricePkg. Qty.
AA4184-3.5EN0353.5 mm4.675 mm3.7 mmRight HandPlainM3.5 x 0.5Grade Nitronic 60100€564.21100
AA4184-3.5EN0535.3 mm4.675 mm3.7 mmRight HandPlainM3.5 x 0.5Grade Nitronic 60100€568.09100
AA4184-3.5EN0707 mm4.675 mm3.7 mmRight HandPlainM3.5 x 0.5Grade Nitronic 60100€602.26100
StyleModelFree Coil Dia.Drill SizeThread DirectionFinishSti Tap SizeMaterial Grade/classDisplay QtyTang StylePricePkg. Qty.
AA4184-6EN0607.675 mm6.25 mmRight HandPlainM6 x 1Grade Nitronic 60100Tanged€537.37100
AA4184-6EN1207.675 mm6.25 mmRight HandPlainM6 x 1Grade Nitronic 60100Tanged€632.37100
StyleModelInsert LengthFree Coil Dia.Drill SizeThread DirectionFinishSti Tap SizeMaterial Grade/classMaterial Quality StandardsPricePkg. Qty.
A3591-161CN15001 1/2"1.184"1 1/64"Right HandPlain1"-1218-8As7245€22.481
A3591-161CN10001"1.184"1 1/64"Right HandPlain1"-1218-8As7245€18.011
StyleModelInsert LengthFree Coil Dia.Drill SizeThread DirectionFinishSti Tap SizeMaterial Grade/classMaterial Quality StandardsPricePkg. Qty.
A3585-12CN11251 1/8"0.893"25/32"Right HandPlain3/4"-1018-8As7245€14.921
A3585-12CN7503/4"0.893"25/32"Right HandPlain3/4"-1018-8As7245€10.991
StyleModelInsert LengthFree Coil Dia.Drill SizeThread DirectionFinishSti Tap SizeMaterial Grade/classMaterial Quality StandardsPricePkg. Qty.
A3591-12CN11251 1/8"0.888"49/64"Right HandPlain3/4"-1618-8As7245€17.411
A3591-12CN7503/4"0.888"49/64"Right HandPlain3/4"-1618-8As7245€12.981
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7/8"-9 Grade 304 Stainless Steel Locking Helical Inserts

Thread inserts are suitable for installing threaded fasteners in soft and thin materials with a stripped & threaded hole. They are ideal for automobile, aerospace and maintenance applications. They provide more strength, versatility & resilient operation than traditional threaded holes.
These locking inserts feature Grade 304 stainless steel construction, offering corrosion, heat and fire resistance with moderate structural rigidity.

StyleModelInsert LengthFree Coil Dia.Drill SizeThread DirectionFinishSti Tap SizeMaterial Grade/classMaterial Quality StandardsPricePkg. Qty.
A3585-14CN13121.312"1.037"29/32"Right HandPlain7/8"-918-8As7245€17.351
A3585-14CN8757/8"1.037"29/32"Right HandPlain7/8"-918-8As7245€15.471