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Locking Helical Inserts

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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1"-8 Grade 304 Stainless Steel Locking Helical Inserts

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Style	Model	Insert Length	Free Coil Dia.	Finish	Thread Type	Drill Size	Thread Direction	Hardness	Tensile Strength	Price	Pkg. Qty.
A	3585-16CN1500	1 1/2"	1.181"	Plain	Coarse	1 1/32"	Right Hand	Rockwell C43-C50	200000 psi to 250000 psi	€23.65	1
A	3585-16CN1000	1"	1.181"	Plain	Coarse	1 1/32"	Right Hand	Rockwell C43-C50	200000 psi to 250000 psi	€17.35	1

HELICOIL -

5/16"-24 Nitronic 60 Locking Helical Inserts

HELICOIL A3591-5EN469

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Style	Model	Insert Length	Free Coil Dia.	Finish	Thread Type	Drill Size	Thread Direction	Hardness	Tensile Strength	Price	Pkg. Qty.
A	A3591-5EN469	0.469"	0.39"	Plain	Fine	21/64"	Right Hand	Rockwell C43-C50	200000 psi	€697.65	100
A	A3591-5EN625	5/8"	0.39"	Plain	Fine	21/64"	Right Hand	Rockwell C43-C50	200000 psi	€891.03	100
A	A3591-5EN312	5/16"	0.39"	Plain	Fine	21/64"	Right Hand	Rockwell C43-C50	200000 psi	€632.37	100

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#8-32 Nitronic 60 Locking Helical Inserts

HELICOIL A3585-2EN164

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Style	Model	Insert Length	Free Coil Dia.	Finish	Thread Type	Drill Size	Thread Direction	Hardness	Tensile Strength	Price	Pkg. Qty.
A	A3585-2EN164	0.164"	0.212"	Plain	Coarse	#17	Right Hand	Rockwell C43-C50	200000 psi	€273.14	100
A	A3585-2EN246	0.246"	0.212"	Plain	Coarse	#17	Right Hand	Rockwell C43-C50	200000 psi	€292.11	100
A	A3585-2EN328	0.328"	0.212"	Plain	Coarse	#17	Right Hand	Rockwell C43-C50	200000 psi	€318.45	100

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#10-24 Nitronic 60 Locking Helical Inserts

HELICOIL A3585-3EN190

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Style	Model	Insert Length	Free Coil Dia.	Finish	Thread Type	Drill Size	Thread Direction	Hardness	Tensile Strength	Price	Pkg. Qty.
A	A3585-3EN190	0.19"	0.251"	Plain	Coarse	13/64"	Right Hand	Rockwell C43-C50	200000 psi	€244.07	100
A	A3585-3EN380	0.38"	0.251"	Plain	Coarse	13/64"	Right Hand	Rockwell C43-C50	200000 psi	€271.81	100
A	A3585-3EN285	0.385"	0.251"	Plain	Coarse	13/64"	Right Hand	Rockwell C43-C50	200000 psi	€297.47	100

HELICOIL -

1/4"-20 Nitronic 60 Locking Helical Inserts

HELICOIL A3585-4EN500

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Style	Model	Insert Length	Free Coil Dia.	Finish	Thread Type	Drill Size	Thread Direction	Hardness	Tensile Strength	Price	Pkg. Qty.
A	A3585-4EN500	1/2"	8/25"	Plain	Coarse	H	Right Hand	Rockwell C43-C50	200000 psi	€323.77	100
A	A3585-4EN250	1/4"	8/25"	Plain	Coarse	H	Right Hand	Rockwell C43-C50	200000 psi	€275.32	100
A	A3585-4EN750	3/4"	8/25"	Plain	Coarse	H	Right Hand	Rockwell C43-C50	200000 psi	€353.93	100
A	A3585-4EN375	3/8"	8/25"	Plain	Coarse	H	Right Hand	Rockwell C43-C50	200000 psi	€283.66	100

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5/16"-18 Nitronic 60 Locking Helical Inserts

HELICOIL A3585-5EN469

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Style	Model	Insert Length	Free Coil Dia.	Finish	Thread Type	Drill Size	Thread Direction	Hardness	Tensile Strength	Price	Pkg. Qty.
A	A3585-5EN469	0.469"	0.39"	Plain	Coarse	Q	Right Hand	Rockwell C43-C50	200000 psi	€329.63	100
A	A3585-5EN625	5/8"	0.39"	Plain	Coarse	Q	Right Hand	Rockwell C43-C50	200000 psi	€449.62	100
A	A3585-5EN312	5/16"	0.39"	Plain	Coarse	Q	Right Hand	Rockwell C43-C50	200000 psi	€295.75	100

HELICOIL -

#10-32 Nitronic 60 Locking Helical Inserts

HELICOIL A3591-3EN190

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Style	Model	Insert Length	Free Coil Dia.	Finish	Thread Type	Drill Size	Thread Direction	Hardness	Tensile Strength	Price	Pkg. Qty.
A	A3591-3EN190	0.19"	0.246"	Plain	Fine	#7	Right Hand	Rockwell C43-C50	200000 psi	€270.77	100
A	A3591-3EN380	0.38"	0.246"	Plain	Fine	#7	Right Hand	Rockwell C43-C50	200000 psi	€286.11	100
A	A3591-3EN570	0.57"	0.246"	Plain	Fine	#7	Right Hand	Rockwell C43-C50	200000 psi	€371.61	100
A	A3591-3EN285	0.285"	0.246"	Plain	Fine	#7	Right Hand	Rockwell C43-C50	200000 psi	€284.23	100
A	A3591-3EN475	0.475"	0.246"	Plain	Fine	#7	Right Hand	Rockwell C43-C50	200000 psi	€327.92	100

HELICOIL -

1/4"-28 Nitronic 60 Locking Helical Inserts

HELICOIL A3591-4EN500

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Style	Model	Insert Length	Free Coil Dia.	Finish	Thread Type	Drill Size	Thread Direction	Hardness	Tensile Strength	Price	Pkg. Qty.
A	A3591-4EN500	1/2"	0.316"	Plain	Fine	G	Right Hand	Rockwell C43-C50	200000 psi	€285.39	100
A	A3591-4EN250	1/4"	0.316"	Plain	Fine	G	Right Hand	Rockwell C43-C50	200000 psi	€241.96	100
A	A3591-4EN375	3/8"	0.316"	Plain	Fine	G	Right Hand	Rockwell C43-C50	200000 psi	€277.70	100

HELICOIL -

M4 x 0.7 Nitronic 60 Locking Helical Inserts

HELICOIL A4184-4EN040

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Style	Model	Insert Length	Free Coil Dia.	Finish	Thread Type	Drill Size	Thread Direction	Hardness	Tensile Strength	Price	Pkg. Qty.
A	A4184-4EN040	4 mm	5.325 mm	Plain	Coarse	4.2 mm	Right Hand	Rockwell C43-C50	200000 psi	€537.37	100
A	A4184-4EN060	6 mm	5.325 mm	Plain	Coarse	4.2 mm	Right Hand	Rockwell C43-C50	200000 psi	€272.46	100
A	A4184-4EN080	8 mm	5.325 mm	Plain	Coarse	4.2 mm	Right Hand	Rockwell C43-C50	200000 psi	€588.09	100

HELICOIL -

#4-40 Nitronic 60 Locking Helical Inserts

HELICOIL A3585-04EN112

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Style	Model	Insert Length	Free Coil Dia.	Finish	Thread Type	Drill Size	Thread Direction	Hardness	Tensile Strength	Price	Pkg. Qty.
A	A3585-04EN112	0.112"	0.151"	Plain	Coarse	#31	Right Hand	Rockwell C43-C50	200000 psi	€287.03	100
A	A3585-04EN168	0.168"	0.151"	Plain	Coarse	#31	Right Hand	Rockwell C43-C50	200000 psi	€280.18	100
A	A3585-04EN224	0.224"	0.151"	Plain	Coarse	#31	Right Hand	Rockwell C43-C50	200000 psi	€302.11	100

HELICOIL -

M3.5 x 0.5 Nitronic 60 Locking Helical Inserts

HELICOIL A4184-3.5EN035

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Style	Model	Insert Length	Free Coil Dia.	Finish	Thread Type	Drill Size	Thread Direction	Hardness	Tensile Strength	Price	Pkg. Qty.
A	A4184-3.5EN035	3.5 mm	4.675 mm	Plain	Coarse	3.7 mm	Right Hand	Rockwell C43-C50	200000 psi	€564.21	100
A	A4184-3.5EN053	5.3 mm	4.675 mm	Plain	Coarse	3.7 mm	Right Hand	Rockwell C43-C50	200000 psi	€568.09	100
A	A4184-3.5EN070	7 mm	4.675 mm	Plain	Coarse	3.7 mm	Right Hand	Rockwell C43-C50	200000 psi	€602.26	100

HELICOIL -

M6 x 1 Nitronic 60 Locking Helical Inserts

HELICOIL A4184-6EN060

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Style	Model	Free Coil Dia.	Finish	Thread Type	Drill Size	Thread Direction	Hardness	Tensile Strength	Price	Pkg. Qty.
A	A4184-6EN060	7.675 mm	Plain	Coarse	6.25 mm	Right Hand	Rockwell C43-C50	200000 psi	€537.37	100
A	A4184-6EN120	7.675 mm	Plain	Coarse	6.25 mm	Right Hand	-	200000 psi	€632.37	100

HELICOIL -

#6-32 Nitronic 60 Locking Helical Inserts

HELICOIL A3585-06EN138

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Style	Model	Insert Length	Free Coil Dia.	Finish	Thread Type	Drill Size	Thread Direction	Hardness	Tensile Strength	Price	Pkg. Qty.
A	A3585-06EN138	0.138"	0.185"	Plain	Coarse	#26	Right Hand	Rockwell C43-C50	200000 psi	€269.44	100
A	A3585-06EN207	0.207"	0.185"	Plain	Coarse	#26	Right Hand	Rockwell C43-C50	200000 psi	€297.37	100
A	A3585-06EN276	0.276"	0.185"	Plain	Coarse	#26	Right Hand	Rockwell C43-C50	200000 psi	€306.80	100

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3/4"-10 Grade 304 Stainless Steel Locking Helical Inserts

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Style	Model	Insert Length	Free Coil Dia.	Finish	Thread Type	Drill Size	Thread Direction	Hardness	Tensile Strength	Price	Pkg. Qty.
A	3585-12CN1125	1 1/8"	0.893"	Plain	Coarse	25/32"	Right Hand	Rockwell C43-C50	200000 psi to 250000 psi	€14.92	1
A	3585-12CN750	3/4"	0.893"	Plain	Coarse	25/32"	Right Hand	Rockwell C43-C50	200000 psi to 250000 psi	€10.99	1

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3/4"-16 Grade 304 Stainless Steel Locking Helical Inserts

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Style	Model	Insert Length	Free Coil Dia.	Finish	Thread Type	Drill Size	Thread Direction	Hardness	Tensile Strength	Price	Pkg. Qty.
A	3591-12CN1125	1 1/8"	0.888"	Plain	Fine	49/64"	Right Hand	Rockwell C43-C50	200000 psi to 250000 psi	€17.41	1
A	3591-12CN750	3/4"	0.888"	Plain	Fine	49/64"	Right Hand	Rockwell C43-C50	200000 psi to 250000 psi	€12.98	1

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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.

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Style	Model	Insert Length	Free Coil Dia.	Finish	Thread Type	Drill Size	Thread Direction	Hardness	Tensile Strength	Price	Pkg. Qty.
A	3585-14CN1312	1.312"	1.037"	Plain	Coarse	29/32"	Right Hand	Rockwell C43-C50	200000 psi to 250000 psi	€17.35	1
A	3585-14CN875	7/8"	1.037"	Plain	Coarse	29/32"	Right Hand	Rockwell C43-C50	200000 psi to 250000 psi	€15.47	1

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7/8"-14 Grade 304 Stainless Steel Locking Helical Inserts

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Style	Model	Insert Length	Free Coil Dia.	Finish	Thread Type	Drill Size	Thread Direction	Tensile Strength	Price	Pkg. Qty.
A	3591-14CN875	7/8"	1.036"	Plain	Fine	57/64"	Right Hand	200000 psi to 250000 psi	€14.13	1

HELICOIL -

M5 x 0.8 Nitronic 60 Locking Helical Inserts

HELICOIL A4184-5EN050

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Style	Model	Insert Length	Free Coil Dia.	Finish	Thread Type	Drill Size	Thread Direction	Hardness	Tensile Strength	Price	Pkg. Qty.
A	A4184-5EN050	5 mm	-	Plain	Coarse	5.2 mm	Right Hand	Rockwell C43-C50	200000 psi	€564.21	100
A	A4184-5EN075	7.5 mm	6.525 mm	Plain	Coarse	-	Right Hand	Rockwell C43-C50	200000 psi	€563.14	100
A	A4184-5EN100	10 mm	6.525 mm	Plain	Coarse	5.2 mm	Right Hand	Rockwell C43-C50	200000 psi	€602.26	100

HELICOIL -

M3.5 x 0.5 Grade 304 Stainless Steel Locking Helical Inserts

HELICOIL A4184-3.5CNW035

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Style	Model	Insert Length	Free Coil Dia.	Finish	Thread Type	Drill Size	Thread Direction	Hardness	Tensile Strength	Price	Pkg. Qty.
A	A4184-3.5CNW035	3.5 mm	4.675 mm	Dry Film Lubricant	Coarse	3.7 mm	Right Hand	Rockwell C43-C50	200000 psi to 250000 psi	€161.47	100
A	A4184-3.5CNW053	5.3 mm	4.675 mm	Dry Film Lubricant	Coarse	3.7 mm	Right Hand	Rockwell C43-C50	200000 psi to 250000 psi	€170.15	100
A	A4184-3.5CNW070	7 mm	4.675 mm	Dry Film Lubricant	Coarse	3.7 mm	Right Hand	Rockwell C43-C50	200000 psi to 250000 psi	€187.12	100

HELICOIL -

Right Hand Nitronic 60 Locking Helical Inserts

HELICOIL A3585-02EN086

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Style	Model	Insert Length	Free Coil Dia.	Finish	Thread Type	Drill Size	Thread Direction	Hardness	Tensile Strength	Price	Pkg. Qty.
A	A3585-02EN086	0.086"	0.115"	Plain	Coarse	3/32"	Right Hand	Rockwell C43-C50	200000 psi	€283.18	100
A	A4184-3EN060	6 mm	4.075 mm	Plain	Coarse	-	Right Hand	Rockwell C43-C50	200000 psi	€602.26	100

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3/8"-16 Grade 304 Stainless Steel Locking Helical Inserts

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Style	Model	Insert Length	Drill Size	Free Coil Dia.	Finish	Thread Type	Thread Direction	Hardness	Tensile Strength	Price	Pkg. Qty.
A	A3585-6CN562	9/16"	X	0.462"	Plain	Coarse	Right Hand	Rockwell C43-C50	200000 psi to 250000 psi	€250.86	100

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