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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StyleModelThread SizeDrill SizeThread TypeInsert LengthMaterialThread DirectionFree Coil Dia.Price (inc. VAT)
A3585-20CN12501 1/4-71 19/64"Screw Locking , UNC1.25"304 Stainless SteelRight Hand1.463"£28.62
A3585-18CN11251 1/8-71 11/64"Screw Locking , UNC1.125"304 Stainless SteelRight Hand1.335"£21.95
A3585-18CN16881 1/8-71 11/64"Screw Locking , UNC1.688"304 Stainless SteelRight Hand1.335"£29.38
A3585-16CN10001-81 1/32"Screw Locking , UNC1"304 Stainless SteelRight Hand1.181"£15.36
A3585-16CN15001-81 1/32"Screw Locking , UNC1.5"304 Stainless SteelRight Hand1.181"£21.23
AA3585-4EN2501/4-20HScrew Locking , UNC0.25"Nitronic 60Right Hand0.32"£222.64
AA3585-4CNW5001/4-20HScrew Locking , UNC0.5"304 Stainless SteelRight Hand0.32"£176.83
AA3585-4CN5001/4-20HScrew Locking , UNC0.5"304 Stainless SteelRight Hand0.32"£168.10
A3585-4CNW250S1/4-20HScrew Locking , UNC0.25"304 Stainless SteelRight Hand0.32"£1,668.48
A3585-4CN375S1/4-20HScrew Locking , UNC0.375"304 Stainless SteelRight Hand0.32"£1,500.31
AA3585-4EN5001/4-20HScrew Locking , UNC0.5"Nitronic 60Right Hand0.32"£273.88
A3585-4CNW375S1/4-20HScrew Locking , UNC0.375"304 Stainless SteelRight Hand0.32"£1,715.89
A3585-4CN500S1/4-20HScrew Locking , UNC0.5"304 Stainless SteelRight Hand0.32"£890.65
A3585-4CN250S1/4-20HScrew Locking , UNC0.25"304 Stainless SteelRight Hand0.32"£1,448.60
AA3585-4EN3751/4-20HScrew Locking , UNC0.375"Nitronic 60Right Hand0.32"£188.53
AA3585-4CNW2501/4-20HScrew Locking , UNC0.25"304 Stainless SteelRight Hand0.32"£162.15
AA3585-4CN2501/4-20HScrew Locking , UNC0.25"304 Stainless SteelRight Hand0.32"£135.26
AA3585-4CN3751/4-20HScrew Locking , UNC0.375"304 Stainless SteelRight Hand0.32"£147.71
AA3585-4EN7501/4-20HScrew Locking , UNC0.75"Nitronic 60Right Hand0.32"£322.72
A3585-4CNW500S1/4-20HScrew Locking , UNC0.5"304 Stainless SteelRight Hand0.32"£779.00
AA3585-4CNW3751/4-20HScrew Locking , UNC0.375"304 Stainless SteelRight Hand0.32"£151.57
AA3585-02CNW1292-563/32"Screw Locking , UNC0.129"304 Stainless SteelRight Hand0.115"£147.53
AA3585-02CNW1722-563/32"Screw Locking , UNC0.172"304 Stainless SteelRight Hand0.115"£153.03
A3585-02CN129S2-563/32"Screw Locking , UNC0.129"304 Stainless SteelRight Hand0.145"£1,500.31
AA3585-02CNW0862-563/32"Screw Locking , UNC0.086"304 Stainless SteelRight Hand0.115"£147.02
StyleModelThread SizeDrill SizeThread TypeInsert LengthMaterialThread DirectionFree Coil Dia.Price (inc. VAT)
AA3591-24CN22501 1/2-121 33/64"Screw Locking , UNF2.25"304 Stainless SteelRight Hand1.727"£3,656.71
AA3591-20CN12501 1/4-121 17/64"Screw Locking , UNF1.25"304 Stainless SteelRight Hand1.454"£2,215.76
AA3591-20CN18751 1/4-121 17/64"Screw Locking , UNF1.875"304 Stainless SteelRight Hand1.454"£2,704.52
AA3591-18CN16881 1/8-121 9/64"Screw Locking , UNF1.688"304 Stainless SteelRight Hand1.319"£2,418.50
AA3591-18CN11251 1/8-121 9/64"Screw Locking , UNF1.125"304 Stainless SteelRight Hand1.319"£2,341.85
A3591-161CN10001-121 1/64"Screw Locking , UNF1"304 Stainless SteelRight Hand1.184"£14.64
A3591-161CN15001-121 1/64"Screw Locking , UNF1.5"304 Stainless SteelRight Hand1.184"£18.90
A3591-16CN15001-141 1/64"Screw Locking , UNF1.5"304 Stainless SteelRight Hand1.171"£18.49
AA3591-4EN5001/4-28GScrew Locking , UNF0.5"Nitronic 60Right Hand0.316"£234.15
A3591-4CN375S1/4-28GScrew Locking , UNF0.375"304 Stainless SteelRight Hand0.316"£1,592.78
A3591-4CNW375S1/4-28GScrew Locking , UNF0.375"304 Stainless SteelRight Hand0.316"£1,715.89
AA3591-4CNW5001/4-28GScrew Locking , UNF0.5"304 Stainless SteelRight Hand0.316"£180.04
AA3591-4EN2501/4-28GScrew Locking , UNF0.25"Nitronic 60Right Hand0.316"£208.40
AA3591-4CNW2501/4-28GScrew Locking , UNF0.25"304 Stainless SteelRight Hand0.316"£156.83
A3591-4CN250S1/4-28GScrew Locking , UNF0.25"304 Stainless SteelRight Hand0.316"£1,276.98
A3591-4CN500S1/4-28GScrew Locking , UNF0.5"304 Stainless SteelRight Hand0.316"£810.52
A3591-4CNW250S1/4-28GScrew Locking , UNF0.25"304 Stainless SteelRight Hand0.316"£1,668.48
A3591-4CNW500S1/4-28GScrew Locking , UNF0.5"304 Stainless SteelRight Hand0.316"£905.38
AA3591-4CN3131/4-28GScrew Locking , UNF0.313"304 Stainless SteelRight Hand0.316"£322.89
AA3591-4EN3751/4-28GScrew Locking , UNF0.375"Nitronic 60Right Hand0.316"£255.41
AA3591-4CN5001/4-28GScrew Locking , UNF0.5"304 Stainless SteelRight Hand0.316"£159.94
AA3591-4CN2501/4-28GScrew Locking , UNF0.25"304 Stainless SteelRight Hand0.316"£145.78
AA3591-4CNW1871/4-28GScrew Locking , UNF0.187"304 Stainless SteelRight Hand0.316"£337.25
AA3591-4CN3751/4-28GScrew Locking , UNF0.375"304 Stainless SteelRight Hand0.316"£148.64
AA3591-4CNW3751/4-28GScrew Locking , UNF0.375"304 Stainless SteelRight Hand0.316"£120.90
StyleModelThread SizeDrill SizeThread TypeInsert LengthMaterialThread DirectionFree Coil Dia.Price (inc. VAT)
A4184-2.5CNW038SM2.5 x 0.452.55mmMetric Coarse , Screw Locking3.8mm304 Stainless SteelRight Hand3.45mm£1,642.60
AA4184-2.5CNW050M2.5 x 0.45#37Metric Coarse , Screw Locking5mm304 Stainless SteelRight Hand3.45mm£151.62
A4184-2.5CNW025SM2.5 x 0.452.55mmMetric Coarse , Screw Locking2.5mm304 Stainless SteelRight Hand3.45mm£1,603.78
A4184-2.5CN050SM2.5 x 0.452.55mmMetric Coarse , Screw Locking5mm304 Stainless SteelRight Hand3.45mm£1,542.53
A4184-2.5CN038SM2.5 x 0.452.55mmMetric Coarse , Screw Locking3.8mm304 Stainless SteelRight Hand3.45mm£1,466.65
A4184-2.5CN025SM2.5 x 0.452.55mmMetric Coarse , Screw Locking2.5mm304 Stainless SteelRight Hand3.45mm£1,537.86
AA4184-2.5CNW063M2.5 x 0.45#37Metric Coarse , Screw Locking6.3mm304 Stainless SteelRight Hand3.45mm£164.93
AA4184-2.5CN025M2.5 x 0.452.55mmMetric Coarse , Screw Locking2.5mm304 Stainless SteelRight Hand3.45mm£122.97
A4184-2.5CNW050SM2.5 x 0.452.55mmMetric Coarse , Screw Locking5mm304 Stainless SteelRight Hand3.45mm£1,741.12
AA4184-2.5CN050M2.5 x 0.452.55mmMetric Coarse , Screw Locking5mm304 Stainless SteelRight Hand3.45mm£164.26
AA4184-2.5CN038M2.5 x 0.452.55mmMetric Coarse , Screw Locking3.8mm304 Stainless SteelRight Hand3.45mm£145.31
AA4184-2.5CNW038M2.5 x 0.45#37Metric Coarse , Screw Locking3.8mm304 Stainless SteelRight Hand3.45mm£149.44
AA4184-2.5CN075M2.5 x 0.452.55mmMetric Coarse , Screw Locking7.5mm304 Stainless SteelRight Hand3.45mm£178.55
AA4184-3EN060M3 x 0.53.15mmMetric Coarse , Screw Locking6mmNitronic 60Right Hand4.075mm£489.74
A4184-3CN030SM3 x 0.51/8"Metric Coarse , Screw Locking3mm304 Stainless SteelRight Hand4.075mm£1,537.86
A4184-3CN045SM3 x 0.51/8"Metric Coarse , Screw Locking4.5mm304 Stainless SteelRight Hand4.075mm£1,592.78
A4184-3CN060SM3 x 0.51/8"Metric Coarse , Screw Locking6mm304 Stainless SteelRight Hand4.075mm£1,675.18
A4184-3CNW030SM3 x 0.51/8"Metric Coarse , Screw Locking3mm304 Stainless SteelRight Hand4.075mm£1,720.39
AA4184-3CN045M3 x 0.53.15mmMetric Coarse , Screw Locking4.5mm304 Stainless SteelRight Hand4.075mm£152.60
AA4184-3CN060M3 x 0.53.15mmMetric Coarse , Screw Locking6mm304 Stainless SteelRight Hand4.075mm£165.50
AA4184-3CN090M3 x 0.53.15mmMetric Coarse , Screw Locking9mm304 Stainless SteelRight Hand4.075mm£191.39
A4184-3CNW045SM3 x 0.51/8"Metric Coarse , Screw Locking4.5mm304 Stainless SteelRight Hand4.075mm£1,642.60
AA4184-3CN075M3 x 0.53.15mmMetric Coarse , Screw Locking7.5mm304 Stainless SteelRight Hand4.075mm£138.38
AA4184-3CN030M3 x 0.53.15mmMetric Coarse , Screw Locking3mm304 Stainless SteelRight Hand4.075mm£131.25
A4184-3CNW060SM3 x 0.51/8"Metric Coarse , Screw Locking6mm304 Stainless SteelRight Hand4.075mm£1,715.89
StyleModelThread SizeDrill SizeThread TypeInsert LengthMaterialThread DirectionFree Coil Dia.Price (inc. VAT)
AT3585-4C250S1/4-20GScrew Locking , UNC0.25"304 Stainless SteelRight Hand0.32"£875.22
AT3585-4C500S1/4-20GScrew Locking , UNC0.5"304 Stainless SteelRight Hand0.32"£957.10
AAT3585-4CW2501/4-20GScrew Locking , UNC0.25"304 Stainless SteelRight Hand0.32"£133.73
AAT3585-4CW5001/4-20GScrew Locking , UNC0.5"304 Stainless SteelRight Hand0.32"£131.35
AAT3585-4CW3751/4-20GScrew Locking , UNC0.375"304 Stainless SteelRight Hand0.32"£146.02
AAT3585-4C5001/4-20GScrew Locking , UNC0.5"304 Stainless SteelRight Hand0.32"£112.40
AAT3585-4C3751/4-20GScrew Locking , UNC0.375"304 Stainless SteelRight Hand0.32"£113.78
AT3585-4C375S1/4-20GScrew Locking , UNC0.375"304 Stainless SteelRight Hand0.32"£918.30
AAT3585-4C2501/4-20GScrew Locking , UNC0.25"304 Stainless SteelRight Hand0.32"£101.81
AT3585-02C172S2-563/32"Screw Locking , UNC0.172"304 Stainless SteelRight Hand0.145"£952.77
AAT3585-02C1722-563/32"Screw Locking , UNC0.172"304 Stainless SteelRight Hand0.115"£118.81
AAT3585-02CW1292-563/32"Screw Locking , UNC0.129"304 Stainless SteelRight Hand0.115"£139.07
AAT3585-02C1292-563/32"Screw Locking , UNC0.129"304 Stainless SteelRight Hand0.115"£101.37
AT3585-02C129S2-563/32"Screw Locking , UNC0.129"304 Stainless SteelRight Hand0.145"£905.38
AAT3585-02CW0862-563/32"Screw Locking , UNC0.086"304 Stainless SteelRight Hand0.115"£144.42
AAT3585-02CW1722-563/32"Screw Locking , UNC0.172"304 Stainless SteelRight Hand0.115"£141.83
AAT3585-02C0862-563/32"Screw Locking , UNC0.086"304 Stainless SteelRight Hand0.115"£97.48
AAT3585-04CW2244-40#31Screw Locking , UNC0.224"304 Stainless SteelRight Hand0.152"£129.78
AT3585-04C168S4-40#31Screw Locking , UNC0.168"304 Stainless SteelRight Hand0.151"£1,103.58
AAT3585-04C1684-40#31Screw Locking , UNC0.168"304 Stainless SteelRight Hand0.152"£98.71
AAT3585-04CW1684-40#31Screw Locking , UNC0.168"304 Stainless SteelRight Hand0.152"£106.30
AAT3585-04C2244-40#31Screw Locking , UNC0.224"304 Stainless SteelRight Hand0.152"£109.37
AAT3585-04C1124-40#31Screw Locking , UNC0.112"304 Stainless SteelRight Hand0.152"£97.48
AT3585-04C112S4-40#31Screw Locking , UNC0.112"304 Stainless SteelRight Hand0.151"£968.58
AAT3585-04CW1124-40#31Screw Locking , UNC0.112"304 Stainless SteelRight Hand0.152"£127.84
StyleModelThread SizeDrill SizeThread TypeInsert LengthMaterialThread DirectionFree Coil Dia.Price (inc. VAT)
AAT3591-4CW3751/4-28GScrew Locking , UNF0.375"304 Stainless SteelRight Hand0.316"£132.07
AT3591-4C250S1/4-28GScrew Locking , UNF0.25"304 Stainless SteelRight Hand0.316"£1,934.96
AAT3591-4CW2501/4-28GScrew Locking , UNF0.25"304 Stainless SteelRight Hand0.316"£126.48
AAT3591-4C5001/4-28GScrew Locking , UNF0.5"304 Stainless SteelRight Hand0.316"£131.04
AAT3591-4C3751/4-28GScrew Locking , UNF0.375"304 Stainless SteelRight Hand0.316"£128.67
AT3591-4C375S1/4-28GScrew Locking , UNF0.375"304 Stainless SteelRight Hand0.316"£1,048.81
AT3591-4C500S1/4-28GScrew Locking , UNF0.5"304 Stainless SteelRight Hand0.316"£775.43
AAT3591-4C2501/4-28GScrew Locking , UNF0.25"304 Stainless SteelRight Hand0.316"£112.33
AAT3591-4CW5001/4-28GScrew Locking , UNF0.5"304 Stainless SteelRight Hand0.316"£141.37
AT3591-3C380S10-32#7Screw Locking , UNF0.38"304 Stainless SteelRight Hand0.246"£970.05
AAT3591-3CW38010-32#7Screw Locking , UNF0.38"304 Stainless SteelRight Hand0.246"£134.38
AT3591-3C190S10-32#7Screw Locking , UNF0.19"304 Stainless SteelRight Hand0.246"£984.05
AAT3591-3CW28510-32#7Screw Locking , UNF0.285"304 Stainless SteelRight Hand0.246"£127.89
AT3591-3C285S10-32#7Screw Locking , UNF0.285"304 Stainless SteelRight Hand0.246"£887.13
AAT3591-3CW19010-32#7Screw Locking , UNF0.19"304 Stainless SteelRight Hand0.246"£130.21
AAT3591-3C28510-32#7Screw Locking , UNF0.285"304 Stainless SteelRight Hand0.246"£112.55
AAT3591-3C38010-32#7Screw Locking , UNF0.38"304 Stainless SteelRight Hand0.246"£126.77

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